1000Question.
Consequence if cylinder is operated with excessive wear
999Question.
State the WEAR ALLOWANCE For TWO-STROKE, For FOUR-STROKE engines.
998Question.
Excessive ring and cylinder liner wear. Indications, Causes, Corrective action
997Question.
cause for cylinder liner cracking.
996Question.
COOLING WATER TREATMENT
995Question.
why Cylinder lubricating oil for a low-speed main propulsion diesel engine is admitted to each cylinder during the compression stroke.
994Question.
why Cavitation and corrosion in cooling water system of diesel engine usually occurs at the pump impeller and the waterside of the cylinder liner.
993Question.
What does the term bore cooling mean?
992Question.
How is the lower part & upper part of the cooling water space sealed?
991Question.
In a Cylinder liner used for a 2-stroke main engine cross flow scavenging. What provision are made for sealing cooling water and exhaust gases.
990Question.
What is the maximum amount of liner wear in a Diesel engine at which the liner should be renewed? What may be considered an excessive rate of wear?
989Question.
Thermal stress occurs due to temperature change, both constant and cyclic. Explain how you would control this temperature rise.
988Question.
how the Worn out liner effect the power developed by a diesel engine
987Question.
Show on a sketch the position of some common liner failure points. how these are caused.
986Question.
Why liner wear is maximum at the top.
985Question.
After measurement of cylinder liners, how are the results put into a useful form?
984Question.
What is the liner wear rate? How is it achieved?
983Question.
To retain lubrication with chrome plated liners, what are the two methods? What is etching of liner?
982Question.
Reason and remedy for Excess wear on liner, Cracks on liner wall, Deposits on liner coolant side, Burning and cracking of piston crown, Deposits on piston coolant side, Wear of piston rings and grooves, Scoring of piston rod, Cracking of the piston mating surfaces.
981Question.
Consequences of under and over lubricating
980Question.
Checks carried out before fitting a new liner & after the new liner has been fitted
979Question.
How would you know if you had a Cracked Liner or Cylinder Head?
978Question.
Procedure for removal of a cylinder liner seized in the entablature. [On large and small engine]
977Question.
If a cylinder liner jams in the cylinder jacket bore, describe the procedure to remove it
976Question.
How would you determine whether the piston and liner are suitable for continued use?
975Question.
Describe a method used for the manufacture of piston rings;
974Question.
If a safety cartridge bursts how can the engines starting system be restored temporarily?
973Question.
What is Crash Manoeuvring? Procedure and sequence of crash manoeuvring?
972Question.
Explain the procedure to check Leaky Start Air Valves at Port, At Sea.
971Question.
Explain the operation of Sulzer air start distributor
970Question.
Explain the operation of Sulzer automatic valve.
969Question.
Explain the operation of MAN B&W air start distributor
968Question.
Explain the operation of MAN B&W AXIAL air start distributor.
967Question.
How would you reverse the direction of the 4stroke diesel engine.
966Question.
Different Methods of reversing a main engine.
965Question.
RD Engine Reversing
964Question.
RND Engine Reversing
963Question.
RTA Engine Reversing
962Question.
Reversing of old M.A.N engines:
961Question.
MC Engine Reversing
960Question.
What is running direction interlock? Working.
959Question.
In sulzer we have wrong way alarm. What do we have in B&W and how it works?
958Question.
Why are Flame traps at each elbow connecting the manifold to the individual cylinder starting air valve required
957Question.
Why are Lightning relief valve for Starting air manifold to the cylinders required
956Question.
Why are Starting air receiver relief valve; fusible plugs required
955Question.
Why Automatic air starting relay valve required
954Question.
Why is Fuel pump "Zero" setting required?
953Question.
Why is Scavenge air trunk flaps and auxiliary blowers Required?
952Question.
Why is "Wrong way" direction blocking, in conjunction with "cam position" interlock Required?
951Question.
Why is Turning gear interlock Required?
950Question.
State the Possible Reasons for Cylinder Relief Valve Lifting.
949Question.
What is the critical and barred range on an engine?
948Question.
In engine with separate telegraph and fuel lever, during manouvring on engine room control when bridge asks for Slow ahead from Dead slow ahead and by mistake the telegraph is moved to dead slow astern. What will happen to the engine? what will happen in case the engine room telegraph is brought to slow astern in the same way?
947Question.
possible cause for the Exhaust temperature of individual cylinder to rise or drop?
946Question.
What are the Safe Guard against over speeding In Sulzer, B & W engines & medium speed auxiliary generator engines?
945Question.
State how the slow turning system operates when an engine start is initialized.
944Question.
Situations in which the slow turning valve is used
943Question.
What is the importance of starting air overlap? Reasons for overlap in super charged engines What should be the minimum number of cylinders for a two-stroke engine for air starting? What is the corresponding number for four-stroke engine?
942Question.
How does the starting air brake the engine when changing direction?
941Question.
leakage of Air starting valve
940Question.
Indications of leaking starting air valves?
939Question.
What would you do if an air start valve jams open whilst manoeuvring?
938Question.
If the fuel oil booster pump fails how would you mange.
937Question.
Methods of producing astern thrust.
936Question.
Why astern power is provided for continuous operation astern at 70% of ahead rpm at the rated speed.
935Question.
When pilot air is opened what happen in distributor of a diesel engine
934Question.
What are the two connections on the air distributor?
933Question.
State the types of governor for main and auxiliary engine.
932Question.
Why is a governor spring trumpet shaped?
931Question.
What is a Strut?
930Question.
State the type of lube oil used in Main engine, Auxiliary engine their TBN and viscosity.
929Question.
What is SAE?
928Question.
HOW WILL YOU CHECK THE EFFECTIVENESS OF CYLINDER LUBRICATION?
927Question.
What is the typical characteristic of cylinder oil for a 2 stroke crosshead engine?
926Question.
What is the typical feed rate?
925Question.
Why is the viscosity of the oil relatively high.
924Question.
The oil has a high TBN. Why.
923Question.
Describe the forced lubrication system as used on most large Diesel engines.
922Question.
Difficulties in achieving correctly timed injection.
921Question.
Calculation of cylinder oil feed rate.
920Question.
Why is the cylinder oil TBN lower in a trunk piston engine from that of a crosshead engine burning the same residual fuel?
919Question.
Aux. Engine
crack found at connecting rod serrations how you will repair
918Question.
What is principle of viscotherm? If viscotherm is absent or damaged how do you maintain the fuel oil viscosity?
917Question.
Explain the cross head slipper lubrication
916Question.
What are Detergency and Dispersancy properties of lube oil?
915Question.
What is Viscosity index
917Question.
What is viscosity? Differentiate between the kinematic viscosity and the dynamic viscosity
913Question.
What are the cylinder lube oil properties?
912Question.
Soon after complete overhauling a generator engine, its lube oil consumption increases. What checks do you carry out in this regard?
911Question.
What is the thermal efficiency of the main engine?
910Question.
How is an engine lube oil sample collected?
909Question.
Describe the MAN B&W ME Cylinder Lubrication
908Question.
Describe the new Pulse Jet Lubricating System
907Question.
What is the thread of propeller nut.
906Question.
How to measure con-rod bolt elongation?
905Question.
What is cross-blow?
904Question.
What are the methods of measuring clearance between the propeller shaft and the bearing?
903Question.
Compare parallel flow and contra flow in heat exchangers
902Question.
What is the pressure rating of SH40 JIS pipe.
901Question.
What is loose ring in improved high lift safety valve?
900Question.
Contra rotating propeller. How it cancels rotational losses
899Question.
Why dosing arrangements where the chemical is dosed into the feed-line just before the boiler or directly into the boiler shell should be avoided.
898Question.
What chemical is added to feed water tank
897Question.
Why Hot well is maintained at certain temp?
896Question.
What is "singing propeller"
895Question.
Cut in and cut pressure of refer and ac compressor?
894Question.
ALL TRIPS & ALARMS ARE PRESENT IN PURIFIER?
893Question.
WHAT DO WE CHECK IF TEMPERATURE OF ANY ONE ROOM IS NOT COMING DOWN?
892Question.
WHAT ALL THINGS TO BE CHECK IF ALL ROOM’S TEMPERATURE IS NOT COMING DOWN?
891Question.
WHAT TO DO IF DOMESTIC REFRIGERATION PLANT IS SHORT CYCLING?
890Question.
BRIDGE INFORMS
889Question.
HOW WILL YOU TEST & OVERHAUL THE DEFECTIVE AE FUEL INJECTOR?
888Question.
AUXILIARY BOILER EXTINGUISHES, WHAT IS YOUR ACTION?
887Question.
Procedure for
measuring wear down of oil—lubricated bearings
886Question.
Fuel pump delivery valve how is it designed & how does this design help.
885Question.
Why is it recommended to use fuel pump pipes made up of seamless, solid drawn tubes?
884Question.
Why is Effective stroke is not directly related with the injection system
883Question.
How does a bypass valve in a common rail fuel system control the Injection Pressure?
882Question.
For containerships which have refrigerated containers, this will greatly increase the total power consumption of the vessel. Will this increase the EEDI value?
881Question.
If gas is used as primary fuel, how can this be verified?
880Question.
In relation to the above, is there a minimum size of gas fuel storage tanks to demonstrate that gas is the primary fuel?
879Question.
Used lubricating oil (ULO):
878Question.
Total sediment existent and total sediment potential:
877Question.
Significance of TSP in Fuel Oil.
876Question.
Stripping pump not taking suction, how will u discharge remaining cargo?
875Question.
How the vibration prevented in cargo pump shaft
874Question.
What is trend analysis?
873Question.
Plunger lift ?
How to measure?
872Question.
attemperator
and desuperheaters?
871Question.
When taking a draw card for a unit on a main engine u find the compression pressure is lower then normal.
what is the permissible drop of peak pressure will u accept before stopping the engine for maintenance?
870Question.
What is INFI AND INVA?
869Question.
Exhaust gases having
considerably less pressure than the scavenge pressure even though how it drives
the turbine and blower to produce scavenge?
868Question.
What is the
function of servo piston in mechanical-hydraulic governor?
867Question.
What is TEFV, How fan is connected in TEFV
866Question.
Difference in cast iron of piston ring to that of liner
865Question.
What is function of back up ring which is fitted along with o ring?
864Question.
What is sdr vv.?
863Question.
How is spindle and vv attached.
862Question.
What is the function of pressure nipple, neck bush and stagnation control v/v in rta fuel pump
861Question.
What’s the specialty of RT Flex fuel injector?
860Question.
What’s the function of slide valve in ME series fuel injector?
859Question.
Hydraulic fluid functions and property
858Question.
What is total sediment potential?
857Question.
What is pre-control & post-control?
856Question.
What are the Characteristics of low-sulfur fuel oil?
855Question.
How and where is the Chrome liner in stern tube fitted and how will you take it out?
854Question.
What’s d diff. b/w shock & relief valve in steering gear?
853Question.
That means it will always lift before relief valve?
852Question.
Why in boiler we have forced draught fan and in incinerator induced draught fan
851Question.
What is rating of a marine diesel engine?
850Question.
What is Maximum Rating of a marine diesel engine?
849Question.
What is Derating of a marine diesel engine?
848Question.
In rt flex engines how vit is incorporated electronically?
847Question.
What all to check as 2nd engineer after grounding.
846Question.
Importance of lip in safety valve
845Question.
Purpose of deep honed liner
844Question.
Difference between RND vs RTA liner construction?
843Question.
Draw the graph between sfoc and power
842Question.
Define VCF and WCF. Give the formula for bunker
841Question.
What is Pump Lift?
840Question.
How deviating exhaust temperatures may be corrected
839Question.
How is Safety device test of Aux. Boiler and Exhaust gas economizer conducted?
838Question.
How is Mooring Winch Brake holding test carried out?
837Question.
How to check Gear backlash of mooring winches
836Question.
WHAT TESTS AND TRIALS ARE CARRIED OUT AT SEA TRIALS, STATE THE TRIAL RELATED TO ENG ROOM
835Question.
How is crash stop astern test carried out?
834Question.
How is crash stop ahead test carried out?
833Question.
Why is Jack-up method for intermediate shaft bearing carried out. Explain the procedure
832Question.
Procedure for Rudder - Internal inspection
831Question.
Rudder Jumping stopper bar clearance measured. What are the normal clearance stopper and the rudder?
830Question.
Rudder Pintle bush clearance measured. What is the normal clearance?
829Question.
Rudder Neck bush clearance measured. What is the normal clearance?
828Question.
Rudder swing check
827Question.
What is crankshaft ‘parallelism’ test, how is it carried out?
826Question.
What is a Jack-up Measurement?
Sea Trial- How is it done?
824Question.
Why must the clearance between the jumping bars fitted on the rudder and pintle structure is to be less than the clearance of the trunion with the rams.
823Question.
What is the function of the valves " pressure relief " fitted between the Port and Starboard cylinders?
822Question.
What is wet steam, explain
821Question.
What are the most common faults resulting in failure to raise adequate vacuum in a fresh water generator ?
820Question.
After a total black out with an automatic power supply system, what is the correct sequence for starting the essential
819Question.
In a trunk type piston, the gudgeon pin is subject to two forces. What are these forces ?
818Question.
What is the purpose of the starting valve fitted on the cylinder head of a diesel engine?
817Question.
At what moment will the cylinder head starting air valve, open and allow 25 bar to flow into the cylinder?
816Question.
When you read a crankshaft deflection figure and the + sign is indicated, for example +4, what does this means
the crank webs have opened up by 4/100 mm.
815Question.
Why can the temperature of the scavenge air after the scavenge air cooler not be lowered below a given temperature and why has the temperature to be regulated above this value?
814Question.
On which unit of the scavenge air system is an automatic drain fitted?
On the scavenge air manifold.
813Question.
If the output of this auxiliary diesel increases, say by 30 %, how will the thermometer readings on the outlet side of engine and turbocharger change?
812Question.
How is the exhaust gas turbocharger cooled in relation to the engine?
811Question.
Which thermometer always indicates the highest temperature in the turbocharger ? why
810Question.
What is the purpose of the fins fitted on steam piping ?
809Question.
After sometime, scale build-up is unavoidable in steam generating coils. How is it removed?
808Question.
Why is there an air vent provided on the atmospheric condenser?
807Question.
In a split, reduced steam manifold, one manifold of pressure7.0 bar, the other 3.0 bar. From which manifold are the returns taken direct to the hotwell?
806Question.
Prior to carrying out any work on boiler burners, You must ensure that funnel uptake flap is closed. What is understood by this?
805Question.
How do you carry out skimming operations on the boiler water?
804Question.
When skimming-off, which valve will you fully open first and close last, whilst operating the other valve throttled ?
803Question.
If the stand-by indicating light is energised on the control panel of boiler burner, what does it indicate?
802Question.
What is the purpose of the restart button which you will find fitted to the control panel of boiler's burner?
801Question.
If you fire the boiler and it misfires repeatedly, indicating flame failure, what are you going to check first?
800Question.
Miller cycle? in detail?
799Question.
What is the stroke to bore ratio of MC-C engine and Meb engine
798Question.
Chemical composition of de-scaling liquid
797Question.
Why Corrugation in scotch boiler
796Question.
What is clag
795Question.
What’s black oil n white oil?
794Question.
Why Draw of a Propeller is required ?
793Question.
Coating on the internal side of M/E liner
792Question.
Why?
791Question.
Is this coating also there on A/E - if not why?
790Question.
Advantage of spectrographic analysis of lube oil.
789Question.
'microbial degradation' of oils what is it
788Question.
HOW IS THE STERN TUBE FITTED TO STERN FRAME
787Question.
Purifier sliding bowl how does it lift up,working principle behind it?
786Question.
OROS piston advantage
785Question.
What is Pyrolysis
784Question.
Dryness fraction/ Wetness Fraction of steam
783Question.
Decrease in maximum cylinder combustion pressure.
With increased exhaust temperature and smoke.
Rossible Cause
Action.
Remedy
782Question.
Decrease in maximum cylinder combustion pressure.
With exhaust differential temperatures normal for all cylinders.
Rossible Cause
Action.
Remedy
781Question.
Decrease in maximum cylinder combustion pressure.
Maximum combustion pressure high.
Compression pressure normal.
Rossible Cause
Action.
Remedy
780Question.
Decrease in maximum cylinder combustion pressure.
Maximum and compression pressures low.
Rossible Cause
Action.
Remedy
779Question.
wedge loading in crosshead bearing in smc engine ?
778Question.
Sea water piping to central cooling system has ruptured, action to be taken to allow the ship to proceed to a repair port if the engine must be operated with greatly reduced cooling capacity
777Question.
How jack bolt used for sulzer main bearing decreases the distance between the tie rods
776Question.
What is herringbone gear. Difference between spur & herringbone gear
775Question.
Define dryness fraction of refrigerant
774Question.
What is SDR valve.
773Question.
What is vacuum steam?
772Question.
Draw & Explain Safematic steering gear system.
771Question.
What is Ogee Ring.
770Question.
Causes of governor hunting in which type of governor
769Question.
Describe what is ZERO & SPAN ADJUSTMENT.
768Question.
Why fuel oil density is measured at 15 deg cel
767Question.
What is oil miscibility?
766Question.
Why bands are provided in piston skirts and what is the material?
765Question.
What is stall in steam heaters?
764Question.
Why does Stall Occur?
763Question.
What causes stall?
762Question.
Effects of stall
761Question.
Problems associated with stall:
760Question.
What is foaming in oil?
759Question.
What will happen if we overfill lube oil in engine?
758Question.
What Steps would you take against high particle content / increased engine wear?
757Question.
INCREASED EXHAUST TEMPERATURES
756Question.
Why is acetylene gas cylinder for gas welding to be erected in upright position?
755Question.
What is the difference between heavy furnace oil and crude oil?
754Question.
What is thermal loading of engine?
753Question.
Which system continuously monitor the liner wear down in sulzer and give readings?
752Question.
What Causes NOx in Marine Engines?
751Question.
What are the new technical development for propeller
750Question.
Difference between short tie rods and long tie rods.
749Question.
What do you understand by composite, alternative and economizer boiler?
748Question.
Marking of safety valve?
747Question.
Types of boiler by pressure:
746Question.
CAPACITY OF REVERSE OSMOSIS DISTILLATION UNIT REDUCED. SYMPTOMS CAUSES ACTION
745Question.
What are the features of boiler automatic combustion control? What is the safety device fitted in this system?
744Question.
Why cylinder L.O alkaline? If not, what would be result in prolong running of engine?
743Question.
In cylinder liner where thermal stresses have been reduced without compromising on mechanical strength.
742Question.
If the sulphur content in fuel is low, what are the consequences on engine operation?
741Question.
Discuss the causes, effect & corrective measure for problem relating to Fresh or sea water contamination of lube oil
740Question.
Discuss the causes, effect & corrective measure for problem relating to Increase in insoluble of lube oil
739Question.
Discuss the causes, effect & corrective measure for problem relating to Drop in alkalinity of lube oil
738Question.
Discuss the causes, effect & corrective measure for problem relating to Change in viscosity of lube oil
737Question.
State the various safeties and alarm fitted in oily water separator (Q.W.S)
736Question.
State the purpose of various safeties and alarm fitted in oily water separator (Q.W.S)
735Question.
Should a piston-ring material be harder or softer than the cylinder material in which it works?
734Question.
If the crosshead and crankpin bolts are insufficiently tightened what effect does this have on the bolt?
733Question.
Why is it particularly important that the total thickness of the shims or liners for crosshead and crankpin bearing adjustment be kept the same on both sides of the bearing? What happens if the thickness varies on each side of side-rod crosshead-and crankpin bearings on opposed piston engines?
732Question.
Connecting rods on slow-speed engines are round in cross-section while on medium- and high-speed engines the cross-section is found to be I or rectangular-shaped. Why is this so?
731Question.
What kind of surface finish is required for crosshead pins?
730Question.
Assume that a large slow-speed main engine crankshaft journol has slipped in its web. Would it be possible to effect a permanent repair without removing the crankshaft from the engine? If such a repair is possible, how would it be carried out?
729Question.
What are the opening periods for starting air valves? How is the opening period controlled and what is overlap?
728Question.
The screw shaft bearing fitted in the aft end of the stern tube has its wear-down checked when the vessel is in dry-dock. How is this check carried out? Is it necessary to dismantle the oil gland or outer seal In oil lubricated stern-tube bearings?
727Question.
Why are Intermediate shafts smaller in diameter; than screw shafts? What factors govern the size of these shafts?
726Question.
Why is subcooling done in refer system?
725Question.
Explain & draw sliding type fuel injector
724Question.
how many bolts are there in rudder stock to hold it. what is the specific name of the bolt?
723Question.
What is VTA, wat type of turbine in VTA? working of VTA
Slow
Steaming
722Question.
If no TDC mark on flywheel how will you check pump timing for M/E & G/E?
721Question.
How to check the fuel injection pump timing? By hair line method, In hair line not given, By Goose net method
720Question.
Adjustment on Small engine & Large engine
719Question.
Symptoms of incorrect timing ?
718Question.
What will occur is oil leak in T/C system?
717Question.
How to measure TC axial and radial clearance?
716Question.
What parts will you check when G/E T/C overhauled?
715Question.
Procedure for T/C O/H ?
717Question.
T/C overhauling checking.
713Question.
What is K value? Purpose of K value?
712Question.
Oil mist detector maintenance ?
711Question.
Screw pump overhaul procedure and check point
710Question.
How do you know air cooler leakage?
709Question.
How to check cooler efficiency?
708Question.
Purpose of baffle plate
707Question.
How do you know L.O cooler leakage? What to do if L.O cooler leakage occur?
706Question.
Cause of loss of vacuum effect in F.W.G
705Question.
What will happen while F.W.G vacuum reach 100%
704Question.
What is solenoid valve? How to operate? Why fitted?
703Question.
Different between relief valve bursting disc and Fusible plug?
702Question.
Procedure for boiler hydraulic pressure test?
701Question.
Safety devices on Cylinder Cover
700Question.
Why does timed lubrication have little merits?
699Question.
Reasons of maximum wear at top of the stroke & around the ports
698Question.
Different Types of liner wear, their rate and pattern.
697Question.
Causes for liner wear.
Other related causes:
696Question.
In tankers and bulk carriers, where long ballast passage are made with the trim aft, where will maximum liner wear be found
695Question.
Safety Devices on Exhaust Gas Boiler:
694Question.
Safety Devices on Scavenge Trunk (for prevention of Scavenge Fire)
693Question.
Air Bottle Survey:
692Question.
Describe the Main Functions, construction, and operation of thermostatic Expansion Valve.
691Question.
Why Equalizing Connection fitted Refrigeration Plant?
690Question.
Refer plant survey
689Question.
What are the indication of a Defective Suction valve & Discharge valve
688Question.
What are the cause effect and remedy of a Choked Expansion Valve?
687Question.
What are the various methods to defrost Brine System?
686Question.
How is the Liquid Flow Back prevented in a ref plant?
685Question.
Why rudder angle is limited to 35°on each side?
684Question.
What is Pintle &Locking pintle. How is weight of a rudder carried?
683Question.
What Protections is there against steering gear damage, due to rudder effect:
682Question.
Describe the procedure for Removal of rudder
681Question.
Ram type Steering Gear, describe the Rudder Wear down Measurement procedure, at sea and in dock.
680Question.
What action do you take if one of the passages of boiler gauge glass is chocked?
679Question.
Where are Dehumidifier fitted and what are its function.
678Question.
Why Cold Room is defrosted and what are the methods of defrosting?
677Question.
Why Compound Valves are used in Air Compressor?
676Question.
Camshaft Timing Adjustment by Pin Gauge
675Question.
If camshaft deviates:
674Question.
Advantages of single cam and double cam:
673Question.
Why ‘lost motion’ not necessary on some engine?
672Question.
In large marine engine which type c/s is used and why?
671Question.
What are Operating Conditions, Indication, & Prevention for a Uptake Fire:
670Question.
What is Propelling Power Allowance? How is it determined?
669Question.
What is Homogenizer?
668Question.
What is Viscotherm Unit? How it operates
667Question.
What is Thermal Cracking?
666Question.
Precaution to be taken if you receive Bad fuel:
665Question.
What is Compatibility of fuel and state its remedies and test procedure
664Question.
What is Poor quality fuel?
663Question.
Requirements for the use of high viscosity fuel:
662Question.
Effects of Bad Fuel Oil:
661Question.
How to order bunker:
660Question.
Bunker Specifications:
659Question.
If LO is contaminated with SW:
658Question.
Water in LO Effects, Remedies
657Question.
How to remove contaminants:
656Question.
What are the Symptoms of LO Contamination:
655Question.
What are the Contaminants in LO and its sources
654Question.
Explain Elasto hydrodynamic lubrication.
653Question.
Explain Hydrostatic lubrication.
652Question.
Explain Boundary lubrication.
651Question.
Explain Hydrodynamic lubrication: [full fluid film]
650Question.
Viscosity Index, VI:
649Question.
Different types of Welding on Cast Iron:
648Question.
Different types of Welding on Aluminium:
647Question.
On what does Welding Distortion depends
646Question.
What is Electron Beam Welding?
645Question.
What is Arctic D steel:
644Question.
What is the meanings of S,M,C and C.
643Question.
Which is latest engine for tanker, bulk carrier?
642Question.
How is the furnace attached to the boiler shell?
641Question.
Discuss Biological Sewage Treatment Plant:
640Question.
What are the Important Equipment Sewage Treatment Plant:
639Question.
BOD:
638Question.
Coliform Count:
637Question.
Safety devices fitted on incinerator:
636Question.
Stern tube leaking, measure to stop leakage?
635Question.
Boiler Internal Fittings:
634Question.
How to Measure Depth?
633Question.
What is the Echo Sounder?
632Question.
Cooling water and boiler water tests with values?
631Question.
What is a back pressure valve and equalising line in refrigeration?
630Question.
How to do bedding of spare propeller once the old propeller is removed in dry dock. How to find out exactly how much surface bedding is there.
629Question.
What are the losses (frictional, pumping, inertia, etc) in marine diesel engines due to, "The Crankshaft”?
628Question.
Explain how four stroke and large slow speed two stroke engines can operate without a turbocharger.
627Question.
Explain clearance fit, transition fit and interference fit.
626Question.
What for blue valve and red valve on ref system?
625Question.
Why the gauge glass water colour dark ?
624Question.
State the Safety Precautions to be carried Out before Crankcase Inspection:
623Question.
Describe the procedure for Crankcase Inspection in large Slow Speed Engines.
622Question.
Auxiliary Engine air Cooler leak How to find out?
621Question.
ER Crane checks and testing as 2E:
620Question.
Hydraulic System for Ballast or Cargo Valves
619Question.
What type of rudder is a spade rudder?
618Question.
How are rudder classified sketch and explain.
617Question.
What causes the rudder to lift and how is it resisted.
616Question.
What is Sweet crude and sour crude?
615Question.
PURIFIER INSPECTION
616Question.
How to check leaky tube in an air cooler:
613Question.
Checks carried
out on a Tail shaft?
612Question.
Steam traps
how to adjust it
611Question.
What is the material of bush used for rudder
610Question.
Advantages of
welding over riveting:-
609Question.
what are the reasons if suction and discharge pressures of reefer compressor are showing same?
608Question.
What is d difference b/t doublers and insert?
607Question.
How sea chest grating is fitted from outside.
606Question.
Hydrophore
pump Short cycling actions to be taken?
605Question.
What is Back Gouging?
604Question.
Lathe machine parts
603Question.
Least count of screw guage
602Question.
Inspecting dial indicators
601Question.
Types of Chucks on lathe:
600Question.
Which one will
use all jaws together one.
599Question.
How to Check Centrifugal pump shaft trueness.
598Question.
Why main engine air cooler is of shell and tube type, why not of plate type?
597Question.
What is the pressure for Schedule 40 & 80.
596Question.
How to tighten bottom plug
595Question.
What does a schedule number indicates
594Question.
What is CW, ERW, STD, XS?
593Question.
Difference between reed valves of refrigeration Compressors and air Compressors?
592Question.
Diesel engine with exhaust and inlet port cut on the liner employs what type of scavenging?
591Question.
What is a King Horn Valve, where do you find them?
590Question.
Why square section springs are used for safety valve of boiler.
589Question.
In an air compressor if the air filter gets choked, will compressor run hot or cold?
Prove it using Boyle's law.
588Question.
Piston removing arrangement in SULZER piston
587Question.
What is deep well p/p and submersible pump?
586Question.
Types of
hydraulic accumulators.
585Question.
Functioning of
an accumulator
584Question.
types of ring
spanner?
583Question.
What is fatigue failure?
582Question.
What exactly is wiredrawing?
581Question.
How do you carry out LP and HP cut-out on a refer compressor?
580Question.
Why refer and A/C compressors are belt driven and not directly coupled to the motor?
579Question.
How is Engine room crane load test carried out?
578Question.
Effect of increase in wear ring clearance
577Question.
What is double duct in Air condition plant?
576Question.
Why telescopic gauge is called telescopic?
575Question.
What is
BOILING POINT
574Question.
What is the process of Polymerization?
573Question.
What are cat fines and what problem will it create in the engine and how do you tackle it.
572Question.
What is catalytic cracking and what is Vis cracking
571Question.
What is square engine?
570Question.
What is the use of heat exchanger after the booster pump on the deck of a lpg ship?
569Question.
What are the causes and remedies of Water bobbing up & down in gauge glass of a boiler.
568Question.
What are the causes and remedies of Scale formation in boiler?
567Question.
What are the causes and remedies of corrosion in boiler?
566Question.
How does bulging of tubes takes place in boiler and how to rectify it
565Question.
Types of
boiler corrugations
564Question.
Types of boiler furnace
563Question.
Types of pumps in E/R and max suct. head for cent. pp.
562Question.
What is differential switch in crane?
561Question.
What are the safety features in crane other than limit switches?
560Question.
What is Dealuminification
559Question.
What is Dezincification? How to prevent
558Question.
What is babbitting
557Question.
What is Clearance Volume? How to find out the clearance volume of a cylinder.
556Question.
Why to Find the Clearance Volume of a Cylinder?
555Question.
What are the new boiler survey schedule and requirement?
554Question.
Starting / Stopping of a Sewage Plant
553Question.
sewage treatment plant Routine Checks
552Question.
Why centrifugal pump have no relief valve.
551Question.
What is glide?
550Question.
Why is the suction pressure of refrigerant plant and a.c. plant different.
549Question.
What are the reason of stuck gate valve.
548Question.
How will you overhaul a globe valve?
547Question.
How to test compressor safety valve
546Question.
How to determine the Boiler Safety valve set pressure
545Question.
ERW pipes means
544Question.
What is Trammel gauge?
543Question.
What does clad steel consist of its advantages, disadvantages.
542Question.
What is the function of inhibitors and catalysts?
541Question.
Composition of incinerator refractory?
540Question.
What is provision for prevention for leakages in hydraulic motor, from Cargo side to oil side and oil side to cargo side.
539Question.
Types of hydraulic motors on bulk carriers & tankers?
538Question.
Winch brake lining overhaul, replacement when and why to replace
537Question.
How would you test a bilge injection valve?
536Question.
What are the significant steps for repair by welding a crack in a high pressure steam pipe at sea?
535Question.
Why ultra sonic can’t be used on CI casting.
534Question.
Action if the exhaust valve leak during Suez canal transit.
533Question.
How do you specify pipe size?
532Question.
Is there any difference between relief valve and safety valve?
531Question.
What is dress coupling? draw
530Question.
Why is gear oil different from others?
529Question.
What are the different type of taps and dies?
528Question.
What is hunting tooth?
527Question.
What is gear back lash? Lack of back lash causes
526Question.
What is ermato joint
525Question.
What Is a Flaring Tool?
524Question.
Important dimensions of flanges? Types of flanges?
523Question.
Pipe schedule?
522Question.
Types of threads?
521Question.
What is GPR/GPO/LH electrodes?
520Question.
How do you set up a new pipe for welding?
519Question.
How to check low water level alarm in boiler and very low level trip
518Question.
Checks while fitting the propeller
517Question.
How does a Stud extractor work?
516Question.
How does a chain block work?
515Question.
Hull Air lubrication system,
514Question.
Advantage of plate sandwiching?
513Question.
Why engine crankcase vent outlets be equipped with Corrosion resistant flame screens
512Question.
What is Pinch point
511Question.
Checks carried on anchor chain cable in dry dock.
510Question.
What are the test done on anchor.
509Question.
How are 2 shackle connected in anchor chain.
508Question.
How is a hole pierced on a plate using oxy-acetylene gas.
507Question.
What inspection are to be carried out on a refer compressor before restarting which has tripped on HP.
506Question.
If superheat sensor bulb is broken or wrongly fitted.
505Question.
If thermostatic expansion valve is malfunction
504Question.
How does the crankcase of an AC compressor gets frosted. Explain the reason in detail.
503Question.
What is the petroleum number of grease?
502Question.
What is dropping point of grease?
501Question.
COMPRESSOR PURGING
500Question.
TOPPING UP OIL WITH COMPRESSOR OPERATING.
499Question.
Explain the unloaded starting of an AC compressor.
498Question.
How is the load controlled in an AC compressor.
497Question.
How is the refrigerant system pressure tested and pumped down.?
496Question.
How is the refrigerant evacuated from the system?
495Question.
Describe the new pressure test of refrigeration system
494Question.
Lift pressure [drum safety valve].
493Question.
Reason for low pressure setting.
492Question.
Why boiler safety valve spring is square in shape cross section.
491Question.
Clearance between pump barrel and plunger in fuel pump.
490Question.
What is CPR
489Question.
Why longer bolt for foundation bolts.
488Question.
How many times a self locking nut can be used
487Question.
Where it is used in engine
486Question.
How to order hacksaw.
485Question.
Specification of hacksaw.
484Question.
what will you do if crankshaft slippage is there. How much is allowed
483Question.
Crankshaft action If the slippage is small, If the slippage is excessive
482Question.
How to sharpen drill bit. Give the angle in drill bit.
481Question.
What is Least count? What is Least count of a vernier
480Question.
Calculating
micrometer screw gauge reading:
479Question.
What is Least count of a screw gauge micrometer.
478Question.
What is batch purification, continuous purification of oil
477Question.
What is Ferrography.
476Question.
What is spectrography.
475Question.
Special springs are used for securing fuel injector to cylinder head.
474Question.
Grades of file.
473Question.
How to order files.
472Question.
Type of bastard file
471Question.
Why call it a bastard file?
470Question.
What are the component of grease.
469Question.
Fuel pump stud broken how to remove.
468Question.
How will you weld a doubler plate on the deck plating where it has developed a small hole.
467Question.
What are the check on the sea chest in dry dock.
466Question.
How to tighten a self locking nut.
465Question.
The primary objectives of tempering
464Question.
What is the device used for load test of crane and lifting devices?
463Question.
What is a Load
Cell?
462Question.
What is wick boiling?
461Question.
What are the specification of grinding wheel.
460Question.
What is GWP?
459Question.
What is ODP?
458Question.
Types of taps.
457Question.
Information required for ordering special Acme Taps or Trapezoidal (metric) taps
456Question.
What is the difference between BSP thread and BSW thread?
455Question.
Why cavitation
will occur in Centrifugal
454Question.
Procedure for Survey of centrifugal pump.
453Question.
Working of axial vibration damper.
452Question.
Inspection of axial vibration damper
451Question.
Where can you use Ultrasonic test, Radiography. MPI. Magnetic particle inspection, Dye penetrant.
Ultrasonic test
450Question.
Compression ration of engine.
449Question.
When engine is changed over from DO to HFO. What happen to the rpm with the fuel rack in the same position.
448Question.
what is molybdenum disulfide
what are its properties.
447Question.
Why centrifugal horizontal pumps are installed in fwd and aft direction only and not in arthwart ship position.
446Question.
How piston is tested for leaks after overhauling.
445Question.
Repair of refractory.
444Question.
How is SAE Grading done.
443Question.
Meaning of SAE 20W40
442Question.
What are the normal crankcase inspection done when the engine is running.
441Question.
6SMC-50 engine. How to test wrong way alarm.
440Question.
How is refrigeration charging done in refrigeration plant
439Question.
In A/E, if a cam has turned for any one unit. How is it corrected. In which direction will it be corrected.
438Question.
Large amount of steel renewal has to be done on old ship. What factors will you keep in mind for the selection of steel?
437Question.
How is hydraulic pipe manufactured?
436Question.
Why lift of boiler safety valve is limited to D/4
435Question.
The pressure setting on the boiler safety valve is to be less than the superheater safety valve setting + 0.35bar + pressure drop across the superheater. tell me why this figure of 0.35 bar is given ?
434Question.
Why super heater safety valve steam pressure setting is less than that of boiler drum safety valve pressure setting.
433Question.
Why do we find the inner surface of a purifier disc stack dirtier when opened for overhauling.
Why are holes incorporated in the disc.
432Question.
Why economizer safety valve setting is higher than boiler drum safety valve setting.
431Question.
Purifier sliding bowl how does it lift up, working principle behind it?
430Question.
Axial vibration and how to dampen this?
429Question.
Ignition delay what are cause and effect of this?
428Question.
He asked me that there are 2 engines every thing is same, one is used for power generation and other used for propulsion, what are requirements for each one?
427Question.
How to measure weight of Oxygen bottles
426Question.
What height quills are located in the liner. how to increase lubrication in alpha lubricator.
425Question.
What is the limit allowed for the ovality? Different positions at which it is measured?
limit for ovality is 0.07mm. measured at 4 position
424Question.
Boiler furnace distorted-- Inspection?
423Question.
Why do the air coolers have fins but LO coolers or FW coolers don’t?
422Question.
Main Air comp. What happens if the Suc. filter is chocked?
421Question.
When we changeover ME from HFO to DO, why the rpm is reduced ?
420Question.
In checking indicator cards why compression card is taken
419Question.
Floating ring and blow down ring
418Question.
Why piston rings are positioned in a lower place in a marine engines as compared to piston rings positioned at a higher place in AC compressors?
417Question.
Lip clearance in boiler how to measure?
416Question.
Slipping clutch and where is it located in sulzer?
415Question.
What is the arrangement provided in sulzer rnd engine if liner o ring leaking
414Question.
While tightening TIE RODS, what lubricant will you use on the threads before tightening. explain why and what will happen if oil is used.
413Question.
M/E T/C casing, water side leaking. how will you go about solving the problem.(CONDITION :- The load of the engine cannot be reduced)
412Question.
State what con be done to continue operation with a turbo-charger having water leakage into the exhaust gas space.
411Question.
If fuel injection starts late and ends early, what is the problem?
410Question.
Give the procedure to measure a propeller drop
409Question.
Why to keep no.1 unit at tdc where is marking is mention
408Question.
how can u control propeller cavitations while on sailing?
407Question.
Difference b/w
the main brgs of -
406Question.
Threads in ER
405Question.
Mechanisms of
Lacquer formation
404Question.
how to check
tightness of piston rod palm hydraulic bolts
403Question.
Windlass break
lining inspection and renewal basis
402Question.
HOW TO TRY OUT
THE ALARM OF IG
401Question.
Copt trips how
2 try out all trips
400Question.
Why do we have
diff cutout?
399Question.
Any diff
between ac and reefer systems?
398Question.
Does the MAN
B&W engine have a fuel quality setting lever on the VIT control similar to
that used on the Sulzer RTA, or must the fuel pumps be adjusted individually if
a fuel of differing ignition quality is bunkered.
397Question.
What all
equipment u require for welding & how arc is generated, what is a welding
machine, how much is d voltage before doing welding?
396Question.
What mechanism
provided on cylinder head to relieve pressure? Why not on generator?
395Question.
latest
technology of the exhaust valve spindle
394Question.
Adv of MC-C
over MC engines:
393Question.
How to order grease
392Question.
What is the purpose of lead screw and tool feeder?
391Question.
How is feathering of safety valve carried out?
390Question.
In ME or RT flex engines how tacho angle encoder works?
389Question.
How is BHP calculation using indicator diagram done?
388Question.
What is the
difference between an ejector and an eductor?
387Question.
What are the clearances you will take in drydock?
386Question.
Why liner honing is provided? what is the effect of ccr on honing?
385Question.
What is the difference between honing and glazing.
384Question.
It means glazing is a defect of liner
383Question.
Explain the METALOCK REPAIR SYSTEM
382Question.
What are the safeties on the reefer compressor of a reefer ship?
381Question.
What is scoc
380Question.
'Significance' of compound pressure gauge in refrigeration
379Question.
causes of pump wear ring being worn
378Question.
refrigeration gases how its classified according to environment hazard
377Question.
Tests on rudder to find cracks
376Question.
Difference between IFO 180 and 380?
375Question.
haring bone gear? what advantage?
374Question.
if the engine is made of titanium (means there is no strength restriction). then what factor is there in engine that limits the power production in a internal combustion engine?
373Question.
how would u ascertain that a bearing metal is properly adhered to its steel backing?
372Question.
What is the
Full form of MAN B&W?
371Question.
What is Open and Close Flash Point?
Why for the same oil we are not taking both open and close flash point?
What are the Differences Between the Two?
370Question.
Why tempering is not done for low carbon steel?
369Question.
What is the important clearance you will take after fitting a keyed propeller? Why the clearance is provided over there and not on the sides?
368Question.
How will determine the TDC of a medium speed engine when there is no marking in flywheel ?
367Question.
how to maintain lo operationally good
366Question.
What is rough weather mode in diesel manouevring system specially referring to rt flex engines and how it is taken care of electronically?
365Question.
reversing process, if not reversing what all to check
364Question.
How will you test Loss of air spring pressure:
363Question.
How will you test Low lube Oil pressure
362Question.
Scav drain tank safeties
361Question.
Air
distributor damaged? How will you replace
360Question.
list of
critical spares (other than M/E) are
359Question.
The deepwell
pump vibrating on starting on gas tankers, what actions to take?
358Question.
e/r crane
testing? where strong point?
357Question.
how to weld
plates of different thickness....
356Question.
Why does MAN
came up with ME-B after ME-C engine?
355Question.
Cause of High cylinder cooling water outlet temperature, How will you test it.
354Question.
If partition
plate of a heat exchanger get holed, possible repair work on board(Hot &
Cold).
353Question.
Condenser how
to take out one of the tube, and put new one.
352Question.
What is
interference fit and where do u use these.
351Question.
Exh vv seat n
spindle base grinding angle? & their diff? & significance of the same?
350Question.
Why hydraulic
jacks are slackened slightly while used for loosening purpose.
349Question.
How to use a stud extractor and how will u use it to extract a broken stud.
348Question.
Significance of K, L, M Clearance with measuring procedure.
347Question.
What is the
pressure that schedule 40 pipe can hold.
346Question.
Engine room
sea chest main line crack action
345Question.
How redundancy is achieved in 4 ram, and rotary vane type steering Gear
344Question.
How feed is adjusted in boiler corresponding to demand in auto
343Question.
Bore cooling, why in angular direction
342Question.
Resilient bolts?
341Question.
Weight of cent pump.
340Question.
Why vacuum in evaporators required
339Question.
Min. thickness of feeler gauge
338Question.
How will u rectify ovality of crankpin
337Question.
A compressor was overhauled and bumping clearance was found to be normal in spite of that piston strikes the head. Give reasons?
336Question.
Whats the purpose
of phenolphthalein and total alk test of blr wtr
335Question.
Advantage of a
Keyless Propeller
334Question.
Advantage of
Rapson Slide Mechanism.
333Question.
How stern tube is fitted?
Question 331
How many stern tube bearing are there and how are they connected with stern tube? Material of bearing and why white metal does not rotate with shaft?
Question 330
Why piston rings are positioned in a lower place in a marine engines as compared to piston rings positioned at a higher place in AC compressors?
Question 329
REMOVING LOWERHALF MAIN BRG. IT IS STUCK WHAT WILL YOU DO?
Question 328
The changes in the power card between an engine with and without vit.
Question 327
Sac Volume of fuel injectors
Question 326
Difference btw a/e and m/e flywheels
Question 325
Why spring in governor is conical
Question 324
How to check m/e air distributor timing is correct (means following the firing order of engine) after overhauling of the same?
Question 323
Long Stroke and super Long Stroke engines Construction Diff?
Question 322
Variable injection pressure (VIP)?
Question 321
your 2 stroke engine sump oil viscosity increased reason , tbn increased reason
Question 320
crosshead bearing clearance increased and you are about to sail
Question 319
Why difference between Pmax and Pcomp should not be more than 35 bars?
Question 318
Out of 2-S and 4-S engines which will be affected more by the Ignition lag of the residual fuel? What is the countermeasure for this problem used these days in 4-S?
Question 317
Difference B/w crosshead design and crosshead lubrication of SMC and RTA engines?
Question 316
You have loaded iron ore how your ship will behave in rough weather
Question 315
main engine omd alarm what action you will take he said the alarm occurred on 1530hrs so he wants the action with how much time u will take was not sure abt some things
Question 314
Bad weather,
one unit web slip, how to detect and what is the effect on the effected units.
How is the effect measured?
Question 313
What else?
Question 312
What will indicator card show?
Question 311
What happens when graphite grease is used when sea water is present?
Question 310
Why con rod big end is oblique cut
Question 309
What are erosion plugs in jerk fuel pumps?
Question 308
So how does this plug protect pump body when helix connects the spill port?
Question 307
What is minimum value of filler gauge,
Question 306
What is full form of bis, astm, sae, ps.
Question 305
diff. btw inserts & doublers
Question 304
Sometimes piston rings are made eccentric. i.e., the radial thickness is least at the gap and greatest at a point diametrically opposite. What are the advantages of this form of ring?
Question 303
One single criteria which decide the power of cylinder
Question 302
What is the average liner wear, what is approx life of liner in term of running hrs.
Question 301
How radio isotope or ultrasonic is used to measure the level of co2 bottles and how to check zero errors?
Question 300
Charging hose for refrigerant gas thread.
Question 299
What does 3/8” or ¾” means in thread nomenclature?
Question 298
What happens when all the flywheel markings are somehow erased and how will you check the timings, tappets etc?
Question 297
What is dewatering?
Question 296
How to weld 16mm plate with 8mm plate –
Question 295
What happens in gas cutting? Chemical reaction taking place inside the metal?
Question 294
Dry Liners
Question 293
Oil Whirl and Whip Instabilities - Within Journal Bearings?
Question 292
In dual fuel engine when running diesel is injected with gas why?
Question 291
Reefer system meat room solenoid coil burnt no spares. how to maintain meat room temp?
Question 290
One unit liner ovality is more – reasons?
How sac volume helps in NOx reduction?
Question 288
Why boiler gauge glass appears shiny?
Question 287
Reason for boiler gauge glass cock blockage?
Question 286
What is the function of reefer compressor head spring?
Question 285
What is advantage of contra flow over normal flow?
Question 284
How to carry out brake testing of e/r crane, procedure and load?
Question 283
How hydraulic power pack works?
Question 282
What are self locking nuts? Where used?
Question 281
What is function of EGR valve on ME exhaust valve?
Question 280
How turbocharger rpm measuring device is mounted on shaft?
Question 279
What is Rate Shaping Nozzle?
Question 278
What is Rudder locking?
Question 277
What is delamination?
Question 276
How does delamination occur?
Question 275
How to order hydraulic pipes?
Question 274
Difference between ship side v/v and overboard v/v?
Question 273
Why ME foundation bolts have long sleeve?
Question 272
Importance of drill bit point angle and lip angle?
Question 271
What is metal lace?
Question 270
What is blowdown ring in boiler?
Question 269
ME-GI injection system:
Question 268
After you have detected air ingress in a refrigeration system how do you purge it out?
Question 267
What is a Diesel Switch?
Changeover valve
Magnetic coupling
Question 266
What is singing of propeller?
Question 265
Crane jib is cracked how u r going to weld?
Question 264
Junior engineer boxed back the purifier after cleaning then its found vibrating probable causes?
Question 263
What does 15W40 denote?
Question 262
What are the clearance taken during centrifugal pump overhaul and how much is the clearance values?
Question 261
how do we carry out rudder painting.
Question 260
What is the max. allowable limit for water content in M/E main lub oil, A/E lub oil, S/T lub oil, m/e cyl.oil?
Question 259
Why two safety valve on a boiler.
Question 258
What is high temp corrosion.
Question 257
What is the ratio of crankcase relief door gauze to the valve?
Question 256
What IS TURBOCOMPOUNDING
Question 255
By not opening the journal how to find hydrodynamic lub is effective.
Question 254
How will U check crosshead Bearing Bonding
Question 253
How can u know there is a fault in m/e vibration damper? How will you do the trouble shooting for this problem?
Question 252
detunner in genrator?
Question 251
Why suction is given to ref compressor crank case?
Question 250
why LNG not carried in LPG ship
Question 249
Dynamic balancing of vessel?
Question 248
alpha lubricator principle
Question 247
diff Mechanical Type VS Alpha Lubricator
Question 246
Sealing arrangement in a stern tube? type of seals and how is the Chrome liner fitted?
Question 245
What will u do if Alpha Lubricator BCU also fails?
Question 244
sulzer has come out with reduced height scavenge port.what is the reason?
Question 243
How pulsation is handled in HP pipe after injection?
Question 242
diff b/w MC and MCC?
Question 241
M/E T/C running at low rpm, reasons?
Question 240
Umbrella seal? Draw
Question 239
What do you understand by the term 'variable injection timing'? purpose of VARIABLE INJECTION timing
Question 238
Why compound gauge is fitted in refrigeration system?
Question 237
Can you change the fuel injection timing or stop the fuel flow in one of the 3 injectors in a single unit in RT-flex.
Question 236
What is propeller drop?
Question 235
what checks will u carry out in framo system. diagram also. how u will check leakage of cargo and oil.
Question 234
What is the material of fusible plug?
Question 233
What is cavitations? Where does it take place in a propeller?
Question 232
How a propeller is mounted using the pilgrim method.
Question 231
What is "Water Hammer" and its danger? How is "Water Hammer" prevented?
Question 230
Properties of main bearing materials
Question 229
Types of Main bearings used for both propulsion engines
Question 228
Boiler gauge
glass on both sides, why not on single side ?
Question 227.
How will you know EGB is leaking? How will you stop the leak?
Question 226.
Working Principle of Selective Catalytic Reduction
Question 225.
What is the setting for the boiler safety valves and why are they different.
Question 224.
Why there is a difference in pr. setting of two safety v/vs on steam drum?
Question 223.
State the major three impurities of fuel oil
Question 222.
State the effect & procedure of removal of Sodium & vanadium
Question 221.
State the effect & procedure of removal of Sulphur:
Question 220.
State the effect & procedure of removal of Silica- aluminium catalytic fines:
Question 219.
Explain with reason how the use of poor qualify residual fuel can effect engine power
Question 218.
Explain with reason how the use of poor qualify residual fuel can effect turbo-charger
Question 217.
Explain with reason how the use of poor qualify residual fuel can effect crankshaft bearing
Question 216.
Explain with reason how the use of poor qualify residual fuel can effect exhaust valve
Question 215.
Explain with reason how the use of poor qualify residual fuel can effect fuel pump and injector
Question 214.
Explain with reason how the use of poor qualify residual fuel can effect cylinder liner
Question 213.
Explain with reason how the use of poor qualify residual fuel can effect piston & piston rings
Question 212.
Explain how Piston speed contributes to cylinder liner wear
Question 211.
Explain how High sulphur content fuel contributes to cylinder liner wear
Question 210.
Explain how Low cooling water temperature contributes to cylinder liner wear
Question 209.
Explain how High maximum pressure contributes to cylinder liner wear
Question 208.
Explain how Excessive lubrication contributes to cylinder liner wear
Question 207
Explain how Insufficient running in contributes to cylinder liner wear
Question 206.
How u measure rudder drop and purpose
Question 205.
What happens if allowed rudder drop is not kept?
Question 204.
Alarms and trips of boiler and IG system
Question 203.
How to calibrate Oxygen Analyser?
Question 202.
What are the safety on Engine room Overhead Crane.
Question 201.
How Frequently
you will Send AUX.ENG. L.O. for shore Testing and ONBOARD L.O. ANALYSIS, TESTS,
RESULTS and DIfF values.
Question 200.
what is aluminium welding .how it is done.
Question 199.
asked me between main engine l.o pump and sump where is the filter located. whats the size of l.o filter
Question 198.
what is a "booster anode"? How does it function?
Question 197.
What is exact meaning of figure 90 dia of piston or dia of liner.
Question 196.
What is the construction difference bet smc and Lmc engines
Question 195.
What is fuel shape rating?
Question 194.
How to renew the refractory practically if some part of it is damaged n replacement is the only option
mean how to do it practically..
Question 193.
How a spade rudder or pintle less rudder is supported.
Question 192.
Reason for boiler furnace cleaning.
Question 191.
suppose one unit is cut off due to mech failure reasons how will u power balance the engine
Question 190.
what is difference in tig and mig welding
Question 189
What is lacquering in cyl liner?
Question 188.
What wil be the result?
Question 187.
What in fuel oil causes this to happen? What are their values?
Question 186.
What is fatigue stress and what is residual stress is it good or bad for the component
Question 185.
lub oil analysis report what is the significance of insolubles in lub oil...
Question 184.
what is pulse jet lubrication system
Question 183.
Difference between rta and rta-u
Question 182.
liner glazing and where it will be more either in 2s or 4s
Question 181.
for describing ignition quality why cetene number is used for diesel where as CCAI used for fuel oil??
Question 180.
how anode is attached to steel bar or stud?
Question 179.
what all u check in sea-chest during drydock? How to gauge thickness of side plates inside seachest?
Question 178.
advtg of subcooling n superheatin in ref sys?
Question 177.
How can moisture enter in the refrigeration system?
Question 176.
why the evaporator inlet from top when using R-22
Question 175.
State the safeties incorporated in the oxy-acetylene bottles and equipment of welding.
Question 174.
What is capacity control?
but why do we have diff cutout? is it bcoz c/c is at suction pressure?
Question 173.
Your 2 stroke engine sump oil viscosity increased reason , tbn increased reason,,
Question 172.
What does the markings on the valve 5K-50 mean?
Question 171.
What is full form of PH and what are the ph value
Question 170.
What is Lambda Control in Ships?
Question 169.
How to Perform Crash Manoeuvring?
What is mark in b&w
Question 168.
WHY High
Pressure Hydraulic Lines are having Square Flanges Instead Of Circular Flanges:
Question 167.
Different Types of Refractory Materials Used in Boilers
Question 166.
Of what is finned pipe a part?
Question 165.
DESUPERHEATED STEAM. WHY AFTER SUPERHEATING WE ARE USING DESUPERHEATER
Question 164.
PIPE SCHEDULE
Question 163.
When will FLAME FAILURE alarm and cut-out of boiler as well as indication by the Flame Failure Lamp occurs.
Question 162.
What is happening when the "PURGING" indicating light is illuminated on the control panel of the boiler burner?
Question 161.
Why Positive Displacement over Centrifugal?
Question 160.
ref plant l.o. charging
Question 159.
In case of LMC Engine can a unit be cut off in running condition
Question 158.
How to cut off Engine in running
Question 157.
In case a Tie-Rod is found broken can we sail with a broken Tie-Rod
Question 156.
Sulzer Engine X-Hd brg. worn out clearances are higher & 1 Hr. left for sailing can we sail or not ?
Question 155.
M/E Lub oil Care
Question 154.
In case OMD alarm comes in voyage what action to take ?
Question 153.
local main engine manuering done working satisfactory, ECR manuering done working satisfactory , bridge manuering tried out not working , tell what can be problem tell four five reasons
Question 152.
what is a valve less fuel pump and how is the VIT adjusted in it?
Question 151.
What is the difference between pipe thread and bolt thread?
Question 150.
composition of high tensile steel for ships, and value..kn/m2.
Question 149.
if 1 % sulfur in fuel oil , so what will be sulfur in exhaust gas ?
Question 148.
sox/nox/voc/co2 from where we are getting from engine room.
Question 147.
What
precautions will you take if you are carrying coal on your ship
Question 146.
how oblique cut in the plunger is determining the starting of injection in conventional VIT in B&W engines
Question 145.
Main engine turbocharger?
Question 144.
SIPWA
Question 143.
anti polishing ring
Question 142. .
Piston ring details-design wth reason n mtrl (new developments)
Question 141.
Why LNG is the best fuel?
Question 140.
What is mean piston speed?
Question 139.
What is duplex pump?
Question 138.
Which fuel quality represents ignition lag and method used to reduce
Question 137.
What is critical speed?
Question 136.
How do u take bottom end bearing clearance in a 4 stroke engine?
Question 135.
Where does the liner experience the maximum bending moment?
Question 134.
When changing a liner, u use an oversize o-ring at the lower end , what will the consequence be ?
Question 133.
Why is 2 stroke connecting rod of circular cross section and 4 stroke conn. rod of I section?
Question 132.
What is Wick boiling:-
Question 131.
cat fines hydrophilic meaning?
Question 130.
What is Umbrella type fuel oil pump
Question 129.
Why droop is given in governor?
Question 128.
Function of inducer in centrifugal pump?
Question 127.
Sn(tin) has a major disadvantage in white metal, what is that?
Question 126.
Material of fusible plug?
Question 125.
How interface is maintained in alpha type purifiers where there is no gravity disc?
Question 124.
What is Cascade System?
Question 123.
What is Hoop stress
Question 122.
Fare line curve , procedure of drawing and what is base line? Where it comes from?
Question 121.
What is Oros piston
Question 120.
What is Guide force moment
Question 119.
What is Electric compensator
Question 118.
What is 2nd order moment
Question 117.
What is first order moment.
Question 116.
Sweating of refer compressor crankcase
Question 115.
What 4 criteria s r to be fulfilled for satisfactory working of a journal bearing?
Question 114.
why shims fitted on the bottom end bolts have to be of exact thickness?
Question 113.
what is the crank pin oil hole position?
Question 112.
What is the name of the instrument that measures vibration? How thus it work and part that measure it?
Question 111.
4 stroke con
rod removed n kept in work shop checks to be carried out? why ovality takes
place, how to measure, max value
Question 110.
Wear ring
Question 109.
Parts of electric governor
Question 108.
Lantern ring
Question 107.
R.O. plant treatment?
Question 106.
What is the similarity and difference between governor and flywheel?
Question 105.
Distance of the lubricating quills from top of liner in terms of the length .
Question 104.
What’s the time period to discard the chain and renew with new one in B&W engines . tell % elongation max .
Question 103.
Under which condition spring of the stuffing box is changed
Question 102.
Puncture valve
Question 101.
Bearing faults and defects
Question 100
Over critical running
Question 99
What is Choke
Question 98
Light spring diagram
Question 97
Why governor spring is conical.
Question 96
How signal is carried to ecr from rpm indiactor.
Question 95
What are the safeties provided on the A/C or fridge compressor.
Question 94
Steering gear safeties.
Question 93
Windlass safety.
Question 92
Zero setting what is the significance of its name?
Question 91
What is Creep.
Question 90
In life boat engine if all the flywheel marking have been erased/removed how to check TDC or BDC position of piston.
Question 89
What is break
point
Question 88
Cetane number.
Question 87
Calculated carbon aromatic index(CCAI)
Question 86
There r how many stern tube bearing n how they r connected with stern
Question 85
ECU, CCU.
Question 84
What is RVK in piston ring what it means?
Question 83
Injection delay
Question 82
Ignition delay
Question 81
After burning
Question 80
Does the MAN
B&W engine have a fuel quality setting lever on the VIT control similar to
that used on the Sulzer RTA, or must the fuel pumps be adjusted individually if
a fuel of differing ignition quality is bunkered.
Question 79
What is a thermal boiler?
Question 78
What are persistent oils? What are its effects on marine environment?
Question 77
What is TYPES OF TEMPERING
Question 76
What is Compression ratio. How do u calculate it
Question 75
What is Shrouding
Question 74
Why during rudder test we are doing 35 degree and 30 degree y not both 35 degree
Question 73
Procedure for
CWT test
Question 72
What are the most dimension of engine.
Question 71
what is the advantage of sleeve bearing in turbocharger in man b&w engine? how many hours after u will do major overhaul as per manual.
Question 70
Why jack bolts are provided in sulzer engine? main purpose?
Question 69
How you will purge air from refrigerant compressor?
Question 68
What is Induction hardening
Question 67
What is Volumetric efficiency.
Question 66
How to order grease?
Question 65
Compression ratio, Stoichiometric ratio values of your last ship
Question 64
How to measure Turbocharger rpm.
Question 63
Bore cooling, why in angular direction
Question 62
Bumping clearance ok; but still piston hitting, what are the reasons?
Question 61
Change fuel oil from HFO to DO at same fuel rack, whether speed increase or decrease, Why.
Question 60
Hydrodynamic lubrication and boundary lubrication.
Question 59
Advantages and disadvantages of single and double volute casing.
Question 58
Advantages of plate type cooler
Question 57
High lift and improved high lift safety valve.
Question 56
Laminar and turbulent flow Reynolds number.
Question 55
Centrifugal pump cannot handle air but turbocharger can?
Question 54
How feed is adjusted in boiler corresponding to demand in auto
Question 53
Two –element feed water control.
Question 52
Why thrust pad is in pieces, y not single piece.
Question 51
Liner bending stress? Where and how?
Question 50
Engine vibrations
Question 49
Under critical running
Question 48
How do u decide when to discard piston ring & all d clearances?
Question 47
What is fuel
index and how is it adjusted?
Question 46
SPCV IN SULZER
Question 45
Why AE NOX is less
Question 44
The main engine turbo charger lub is supplied by main engine lube oil pump, during sudden lube oil pump failure how turbo charger is protected.
Question 43
What is the difference between pipe thread and bolt thread?
Question 42
What are the safeties on air bottle?
Question 41
Why Negative
cam or Inward cam used in Air distributor of the MAN B&W Starting Air
System.Why not a positive cam?
Question 40
What all checks to be made on liner before giving it for survey
Question 39
What causes ovality of liner
Question 38
What are liner ribs and why they are in segments and use?
Question 37
What are the Advantages of using Wasted studs for securing main bearing top keep in MAN B&W. Why not jacking bolts?
Question 36
What is fitted bolt? How is it fitted? Where is it used?
Question 35
Interference bolt and fitted bolt are they same?
Question 34
What is Waste gas system
Question 33
Main engine changeover from MDO to HFO, rpm increases at same fuel notch. What are the reasons?
Question 32
What is nitriding?
Question 31
What is lean mixture in dual fuel combustion engine?
Question 30
How to reduce maintenance in exhaust vv
Question 29
Refrigeration gases how its classified according to environment hazard
Question 28
Does the
Sulzer engine have Super VIT? If yes, then what is the difference between VIT
and super VIT in Sulzer?
Question 27
What is ASTM
Question 26
SAE what is it
Question 25
Why steam is grey in color and not transparent?
Question 24
Maintenance on QCV?
Question 23
Manhole door elliptical. why?
Question 22
Why 3 injectors are used in modern 2 stroke engines
Question 21
Boiler furnace bulge how will you repair it.
Question 20
What other method of boiler bulge repair?
Question 19
What is Muntz metal, monel metal, white metal compositions and which is more electrochemically active of them?
Question 18
Why is a chiller used for on a lpg?
Question 17
What is dealuminification where is it observed and why?
Question 16
Function of motor on governor
Question 15
Where are slipping clutches used?
Question 14
How will you make camshaft float while adjusting its position?
Question 13
Humidification de-humidification how will u control then.
Question 12
Key elements in working of an automatic air conditioning plant.
Question 11
CRANK CASE
INSPECTION
Question 10
What is NPSHa and NPSHr? how are they related? how will you apply it to COPT on ship?
Question 9
Piston seized of a unit n u have to take it to port what is your action as a 2nd engineer
Question 8
Crank pin twisted by 3 degree what will happen in the engine
Question 7
What is Wedge Rolling in SMC ENGINE?
Question 6
Various types of supercharging.
Question 5
Inspection for smoke tube boiler furnace
Question 4
If i show u one broken bolt how u will confirm that it is because of fatigue failure
Question 3
5 parameters that indicate immediate overhaul required for fuel injectors?
Question 2
Type of motor on winches of crude oil tanker.
Question 1
2 stroke
engine, N- 1400 RPM, Fuel Inj start: 15.5 BTDC, Fuel Inj End: 5.5 ATDC
what will be the Fuel injection time (Sec.) in 1 revolution?