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Function 4b

The document outlines various technical aspects related to marine engines, including specifications, lubrication systems, fuel oil properties, turbocharger functions, and boiler operations. It covers maintenance procedures, causes of malfunctions, and checks required during overhauls for both main and auxiliary engines. Additionally, it discusses safety measures, vibration issues, and the impact of fuel regulations on engine performance.

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balaji
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0% found this document useful (0 votes)
13 views30 pages

Function 4b

The document outlines various technical aspects related to marine engines, including specifications, lubrication systems, fuel oil properties, turbocharger functions, and boiler operations. It covers maintenance procedures, causes of malfunctions, and checks required during overhauls for both main and auxiliary engines. Additionally, it discusses safety measures, vibration issues, and the impact of fuel regulations on engine performance.

Uploaded by

balaji
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as XLSX, PDF, TXT or read online on Scribd
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Main Engine

Engine specifications
Explain mark no.in it
Main engine Type
Mean piston area ,speed, significane
What is the extension of your latest tyre 3 engine
Causes for crankshaft misalignment and what will happen if mis alignment occurs
Crank shaft mis alignment and cause.
Parts of crankshaft. What type of stress each part subjected to and at wat position .
Stress in crankshaft in various places
Type of crankshaft used for larger engine. Why we r using semi built crankshaft.
Tie rod tightening procedures -cross qn
Chain tightening procedure.
Slack chain indications
Explain all part purpose and what check u do in all parts while doing overhaul
Liner cavitation
Types of liner wear
What is laquering in cylinder liner and preventive action .
Piston crown Crack reasons
Fuel pump timing effects,
ME fuel cut off procedure
Timing checks, and how to advance, retard,

Aux. Engine
A/e performance explain in detail.
Compression pressure how you take for one cylinder?
How will you take AE performance
Speed droop?

ME Lubrication
Alpha lubrication explain,
How quantity of cyl lub oil is controlled in alpha lubrication.
ME alpha lubricator cylinder feed rate adjustment? Basic feed rate?
Excess cyliner lubricantion what will happen?Less lubrication what will happen?
How will you adjust cyl lubrication for single unit
What happens if Cyl oil lubrication is high & what if Low
Foaming in lube oil . Causes and action .
Microbiology lube oil bacteria effect -cross qn
What is lubricity in lube oil and what is the maximum value

Fuel Oil
Acid number for fuel oil and the limit .
Fuel oil sulphur content
Incapability of mixing two fuel
Turbocharger
How radial movement of a T/C blade damped
What is pulse turbocharger.
What is the use of nozzle in turbocharger
Turbo charger Nozzle purpose,what is diffuser,inducer,sealing arrangements
T/c nozzle ring, diffuser, inducer purpose.
Sealing air, nozzle ring purposes,
What all check u do in nozzle while doing overhauling
Labyrinth seal purpose and what principle it is working
What check u do in labyrinth seal while doing overhaul
Type of turbocharger bearing

Vibration
Axial damper vibration
Torsional vibration were placed,

Boiler
In front of surveyor how u test the boiler safety valve
Boiler rotary cup overall and clearance.
Boiler safety valve components and what all checks you will carry out
Boiler safety valve parts
Boiler safety valve setting?Explain full
Caustic embrittlement,
Hydrogen blistering
Furnace explosion reason and cross qn
Cooling water chemical name reaction

Propeller
Cpp break down actions
Propeller curve,
Stress acting on tail shaft.

Aux. Equipments
How do u lay-off air compressor ?
Purifier at low speed how it's overflow.
Refrigerant properties
Main Engine
Type of engine sailed
Engine specifications he needs all points to discuss rite from piston cooling type to crankshaft type everything .
Main engine safety
Engine latest development for 2020
Me engine and mc engine difference
What's the difference between mc and sulzer engine
Crank case relief valve solas regulation
Crankcase explosion and action as 2nd engr
Crankcase relief valve test
Safeties for c/c explosion
Crankcase inspection? Clearances inside ? Thrust block? Maintenance done in propeller and tailend shaft ?
Crank shaft deflection when not to take and y.
Crankshaft deflection lot of cross questions
Type of crankshaft in your engine and y
Bearing temperature monitoring,how
Main engine lubrication and types
Types of crosshead & cross question
Types of crosshead bearing
Crosshead lubrications
Lubrication in crosshead and cross questions.
U r opening a unit of me . What all checks?
What all checks in piston?
Piston ring failure reasons
Piston ring inspection
Which surface in the piston ring groove is the most important?
Exhaust vv overhaul
Reason for exhaust valve burning?
Exhaust gas bypass system
Scavenging ports
Reasons for liner wear and tell about cold corrosion?
Exhaust temp low in one unit
How will you correct the timing of engine after chain adjustment?
How will you differentiate exh and inlet valves visually
Define main engine reversing
How reversing achieved in me engine and interlocks
Me electronic engine reversing where signal comes for reversing and firing order,how it gets activated for opening.
Reversing of mc... How it's done.
What is critical rpm and why it is happening?
Explain the starting air system in rt-flex engine in detail.
Starting air line safeties and maintenance
How u show to surveyor ur engine is in nox limits
How nox forming in engine, tier 3 limits, how u complaint ur engine with nox, what docs, nox reducing methods..
How will you do nox tuning
Miller's cycle
Nox criteria and problems faced in operator point of using the lsfo fuel in non compliant engine.
Nox file & informations inside as per marpol certificates required for me
Nox reduction methods
Scr?(deeply)
Lay up m/e checks
What is the derating of the engine , how and why it is done...?
Light running of main engine...

Fuel Ignition
How combustion process takes place
How air is mixing with fuel inside cylinder.
How fuel get atomise
How will u ensure proper combustion takes place
Superheat,latent heat
Too high ignition delay - fqs
Explain fqs (fuel quantity piston) with a sketch
Explain the principle of fuel metering in ur engine.
How fuel metering is done in fiva
How fuel timing advancing done me engine
Advancing fuel injection what will be the consequences.
While advancing the fuel injection, exhaust temperature will increase or decrease, how and why...?
Why exhaust temp is getting lower in advance fuel timing.

VIT and VEC


Explain vit and draw fuel pump and show me how is vit integrated to the fuel pump? How’s the vit working?
Explain vit and super vit
Vit and breakpoint
What is min and max break point, why super vit starts at 40℅ mcr
Why are we doing fqs,how much is max limit
Fqs? Where u will adjust?
Fuel pp lead
Fuel quality adjustment
Fuel quality setting?
VEC, Variable exhaust closing in main engine
VEC when it will come in action

MAN B&W ME Engine


Explain ELVA
Explain FIVA operation
FIVA valve failure
FIVA valve working ( more cross questions)
HPS pump working
Interlocks in ME
LDCL working and how high temp is maintained, draw the line diagram...
ME engine emission mode and eco mode
Materials & Construction
Aux eng exh vv material and coating
Liner material ,piston material why different materials used ?
Y liner is made of cast iron
Cooling jacket construction of liner.
Manufacturing methods of pipe,
What is meant by schedule,
Material selection for pipe,

Main Engine Clearances


All me clearances
Clearances of main engine.
Crosshead clearance and cross questions
Liner calibrations and wear limit?

Engine Power
Advantages and define super long stroke
Green. Ultra long strong
What/why is g in ultra long stroke ?
Green it reduces 7% of co2 emission
Stroke to bore ratio?
Continuously monitoring and adjusting p pmax and p comp. .
How to increase pmax
Pmax low in one unit
How to adjust pi for one cylinder in case of variation? Process adjustment offset.
Mip,mep,power calculation
What is the defn for mep and mip what is the difference.
How to find mean indicated pressure
What u will find from indicator diagram
How to calculate power.
Indicated power
Power develop in single cylinder,
Particular unit show less power how will u improve
Power balancing with cross qns
How auto tuning done in me engine ?
What is auto tuning?
How will u balance ur engine
How will u do engine tuning ?
How to check the performance of your engine
Sfoc , how to calculate and unit
How to acheive low sfoc for ur engine

Vibration
Vibration & type of vibration
Vibration in engine , what u check ?
Axial vibration damper
What is the 2nd order vibration of the ic engine and how it is countered.

Tubocharger
Turbocharger types
Difference between axial and radial turbo charger
New development in turbocharger
Multistage turbocharger
What is vgt and what is variable
Purpose of shroud ring i. Turbocharger and sealing arrangement between suction and exhaust side.
Turbocharger surging, surge line graph explanation
Turbocharger inspection
Turbocharger overhaul, clearances
What type of bearing in turbocharger
Lamda controller with jet assist.

Governor
Maine engine governor type , working
Governor controls of me engine
What is governor droop ( few more questions on working and load sharing )
What is meant by isochrounus governor

Cylinder Lubrication
Alpha lubrication, advantage
Ccu fails action
Ccu failure in one unit, sequence what happens next? Actions?
Eicu and ccu functions and if it fails

Coolers
Air cooler water mist catcher fouled, what are the effects?
Aircooler and mac intercooler difference.
Cooler end cover repair

Purifier
Fo purifier how much degree oil temp to maintain,what happened if it 100&above
How to select the gravity disc. What to consider for selection.
Pairing disc in purifier
Purifier overflow reasons
Ows working

Heat Treatment
Various metal treatments, Heat treatment and type
How mechanical brazing work
Function of brazing
Annealing
Explain nitriding?
Difference between cast iron cast steel ? Forging and casting?
What is fatigue ?

Steering Gear
Types of steering
Type of s/g pump
Steering gear working and type of pump is used.
Steering gear pump type and how it works
Steering gear safeties and regulation.
Follow up and non follow steering, under which situation u will use
Hunting gear mechanism
How will u isolate one ram
Telemotor
How position of rudder is maintained in case of wave effect

Boiler
Type of boiler u worked
Explain boiler furnace explosion
Safety precautions for furnace explosion
Accumulation pressure test, why?
Boiler burner types
Flame failure alarm reasons
Rotary type burner explain
Turn down ratio of boiler
Whats swell and shrinkage in boiler and to overcome this problem?
Types of tubes in water tube boiler
Type of ur safety valve.. Spring load of each type.
Difference between safety vv and relief
Difference between high lift and improved high lift safety valve
Boiler safety valve pressure setting regulations
Boiler safeties and safety valve setting
Safety valve check
Safety valve setting and lift
What is the allowance for free length of the spring in the safety valve...
What is allowance for lip clearance in boiler safety valve
Boiler gauge glass safety
Boiler water test
Boilre water which test indicate salt presence
Boiler water scale presence
Chlorine level in boiler
Corrosion types and cross questions.
Cold corrosion details, causes and remedies
Define cold corrosion and hot corrosion and causes of it, how to reduce it
Foaming in boiler
Oil in boiler gauge glass actions
Three element feed controller for boiler. Why the need for three element?
Three element feed water controller working

Compressor
Bumping clearnce in mac and its significance
Why in reefer comp not taken?
Safeties in air compressor
Air bottle solas regulation

Refer
Vapour compression cycle
Vapour pr and evaporation difference
Short cycling refrigeration
What is back pressure valve in ref. System?
Why using compound gauge in ref comp
What are all pressure in comp,
Compressor suc and disc.pr
Refer compressor oil charge procedure
Why suction is in crank case of refer
Accom ac - how do u remove air from system?
Liquid came to compressor side of reefer system , what safeties given to prevent same ?
Hw v r maintaining different room temp with 1 compressor
What is internal and external of tev in ref.system?
Txv working principle.

Pumps
Types of centrifugal pp and cross questions
Centrifugal pump overhaul and checks & clearances
Cavitation
Causes for centrifugal pump cavitation
What is meant by priming in pump
Centrifugal pump priming methods
Types of priming arrangements in centrifugal pump
Npsh... Max possible npsh
Npsh and how it affects
Hydrophore pp and how you will fill from empty and cross questions
Types of coupling ermatac coupling
Y screw pp y not gear pp for sludge discharge
Gear pump specified backlash purpose.

Fuel Oil
Ccai, and it limits
Calorific value
Cetane number
Explain ccai and cetane number
Fuel quality
How do you say fuel is good fuel oil
Properties of fuel oil
Viscosity index
Visocity of fuel oil
Fuel oil lab analysis report
Lsfo problem faced
0.5 sulphur fuel problems
2020 lsfo control
Disadvantages of using lsfo and what methods to overcome ..?

Lube Oil
Lub oil properties
What are the properties of cylinder lub. Oil.
Shore analysis lub oil(too much cross qu?)
Tbn 70 stand's
Diff between 2s and 4s lub oil.
Challenges in lsfo with cylinder lubrication?

Rudder and Propeller


Propeller drop
Propeller cavitations
Rudder drop , causes and maximum limit

Aux. Equipments
Difference between ship side and ovbd vv
How sea chest fitted?
How holding brake is bypassed when hoisting the lifeboat with motor??
What is the type of screw in fitted in brake of windlass
What is visco therm and how it works
What is the pressure of fire line
Why relief valve is provided in fire line
Pid controller
Profile gauge
Stresses in 4s engine ?
for opening.
ENGINE:
Engine Specifications
Fuel grade
Diff between ME & MC engines
Difference between rta and rnd engine
In MC engine what type of Fuel pump.
Lube oil grade,how to order
Type of engine sailed & type of ship.
Type of main engine, what does c stand for in mc-c
Type of engine: rtflex
Types of engines,abt sulzer engines
What complications will arise from 2020 fuel regulations
What engines ur sailed.
Types of cross head.

INDICATOR CARD:
Draw card power card calculation AND
Indicator diag and its types, draw, explain and also cross questions.

MAIN ENGINE:
2S 4S bottom end bolts difference, what are all d force acting, when tensile, when compressive?
Alpha lubricator and cross questions...
Arrangement of foundation bolts..,chocks material, what is function of chocks.
Clearance in piston ring and stuffing box
Crankshaft material
cross head bearing survey
Cross head lubrication.
Crosshead bearing survey
Crosshead clearance and bottom end bearing clearance
Crosshead lubrication
Crosshead survey
Cylinder liner cooling arrangement.
Exhaust compositions.
Fitted bolt explain, where it is fitted.
Functions of flywheel...
holding down bolts, if loose what ll happen?
How bottom part is cooled.
How crankshaft is aligned initially n how will u confirm it is in a straight line.
How much is the depth case hardened in crank pin
How will you conduct crankcase inspection
hydraulic jack working, did u overhauled? Explain all parts inside
Main engine bottom end bearing clearance.
Main engine turbocharger lubrication, parts, type of lubrication.
Piston checks , clearance
Piston cooling why oil not water reason
Piston rod material.
Purpose of TIE ROD
Stuffing box clearance checks.
Stuffing box material.
Tie rod exact location, which position located, why, why not fitted near side.
Turbocharger surging symptoms.
VIT and super VIT
what is a function of chocks.
What is case hardening
What is FQS
What is undersize bearing.
why thrust block ,parts in thrust block, how it transmits thrust to hull.

BOILER:
Accumulation press test
Boiler burner type & principle.
Boiler Furnace fire fighting.
Boiler safety valve - floating ring use
Boiler survey and cold start.
Boiler type of combustion - were combustion takes place
Drawbacks of full bore safety valve...
If more air is supplied to the furnace, what will happen...
Safety providing gauge glass in case of rupture
Safety valve setting procedure...
Scum blowdown
Types of burner in boiler
Types of safety vlv and difference between them.
What internal mountings are provided in the boiler
what type of combustion in boiler & main engine, difference
Wts boiler water treatment, chemical composition (using chemical) how it's working

Miscellaneous
Ae con rod inspection and checks
DCP extinguisher refilling
Main air compressor, actual pv diag, draw explain. I did theoretical one but he didn't accept
Types of centrifugal pumps.
Types of heat treatment process.
Main engine
By just looking at crankshaft web reading how will u know whether it’s right?
Chain drive vibration
Clover leafing draw and tell about it.
Common rail advantages.
Complete explanation of ME engine
CPR purpose
CPR...purpose..depth and it’s importance
Diff between mc c and me b engine
During operation movement of plunger and barrel,
Exhaust valve operation, detailed (read name of all parts in t v/v assembly)
Forces on crankshaft.
Fuel timing without opening camcase
Have to check the scavenge drain oil for iron and tbn and increase the cylinder lub oil according ly
HCU, wat oil used, how pr. Developed, wat type of p/p
How many tie rods in ur ME , how it is calculated.
How piston is cooled, flow path
How reversing takes place in man b&w engines and it's sequence.
How's ME different from MC
In mcc and meb engine
Injection pr.
Latest injectior development?
Latest injector development?
Lub oil line , explain how piston cooling achieved?
Lubricantion for complete unit from where to where it goes exact location of entry
Main engine type and specifications
MC vs ME engine difference
MCC advantages.
Me spec
Moment compensator in sulzer
Nox file components?
Piston rings material.
Position of detuners nd compensators, how and why both r provided differently.
Purpose of tie rod and difference in single and twin tie rod construction and why twin tie rod is preferred
Ridge formation on liners.how it is formed..how it can be removed
Rt flex fuel injection
Stresses in crankshaft.
Stuffing box clearance & checks ?
Telescopic pipe sealing arrangement . Piston cooling flow and telescopic pipe sealing.
Thrust bearing location with reason
Top bracing, mechanical top bracing
Type of engine sailed
Type of engine, specification
Types of crankshaft, what do u mean by grain flow, how to see/find
Variable exhaust closing why and how achieved
Various components of ME engine
VIT explanation, purpose, advantage, how adjustments made in depth with many cross questions
VIT- funtions, advantage,
Vit working detail
What force it exerts on bed plate? How?
Which type of bearing , why not bush or sleeve brng,
Why frequency of generator crankshaft damage is more compared to main engine .
Why Jacking bolts in Sulzer engine provided?
Zero sac volume in fuel injector

ME Power
BHP and rpm relation
Calculation of power.
Draw card. What you will find.
Engine specifications, draw card and wat all information u wil get from that
How ll u calculate power
Ibhp calculation and spring constant wr u will get.
Indicated horse power
MEP.
Planimeter ,
Power calculation using power card
Power diag.
Relation between speed and mcr and cross questions
Relation between speed and power
SFOC. Why we bother about it.
Wat info u ll get from draw card
Wat r all the factors affecting the power of the engine
Why overlap is provided in timing

ME Lubrication
Alpha lubricator and cross questions
Alpha lubricator explain, how optimisation done, how metering done, values feed in hmi panel,
Alpha lubricator working
Alpha lubricator working? How quantity controlled. How cyl. Oil metering is done in alpha lubricator
CLO metering and how do u adjust the cylinder lube oil feed rate.alpha lubrication system and cross questions
Cross head lubrication.? Hows cross head bearing different from other bearings. He was asking abt it's construction. Cross hea
How is cylinder lub oil quantity controlled
Liner lubrication
Sweep test
Sweep test for 24 hour period
Type of cylinder lubrication .i said Alfa .den how does it measure the quantity .how u will increase or decrease
What other lub oil tests u do onboard
Where cyl. L. O is injected in a unit
Wt u answer?? How is cylinder lube oil quantity controlled
Turbochargers
Emergency t/c lubrication
How is vibration is reduced in turbocharger?How T/C vibrations are minimized.
How vibrations removed in turbocharger
K valve and where u will find
Lambda controller explain and cross questions in that
M/E turbocharger..diffuser..inducer..explain their purpose
ME lubrication to crosshead and turbocharger. Working of labyrinth seal in turbocharger. Labyrinth seals in turbocharger.work
Miller cycle in detail
Parts of t/c
Scr working?
T/c surging
Turbocharger function of inducer ,diffuser .how does diffuser converts to pressure energy from velocity .lot f cross questions o

Vibration Dampers
Axial damper , Torsional damber( don't say from Deven aranha)
Axial vibration damper location with reason
Explain axial vibration
Main engine vibration? Which types of vibrations in ME , how to minimise it.
ME vibration, explain longitudinal vibration
Types vibration

Metallurgy
Case hardening?
Caustic embrittlement?
Cylinder liner and piston rings material and heat treatment carried on it.
Why do we do quenching, what happens if you do quenching after anneling process

General Physics/Chemistry
Dew point
Hot corriosion?
Unit of spring const
Venturi effect and its principle
Viscotherm working principle.
What is spring constant.

Boiler
Boiler accumulation pr test?Why done
Boiler safety valve accumulation pressure test. When all u will do
Boiler safety valve setting
Boiler salinity increased
Hoop stress in boiler
Safety valve pressure setting
Smoke tube water tube which is better.
Types of boiler safety valve and differences
Wat is ph mean. Value .Wat will happen ph increase and decrease
What are tests u carry onboard
What is relation between safety valve pressure and accumulation pressure
What is the lift between full lift and improved high lift safety valve
Why 7mins and 15mins time diff for smoke tube nd water tube

Refrigeration
Auto operations of refer system
Automatic working of refer system
Back pressure valve
Purpose of back pr valve in veg room.
Refrigeration cycle
TEV
TEV working
Thermostatic expansion valve purpose?
What superheating/subcooling
Why back pressure valve not on other rooms

Air Compressor
List of Thermodyamic cycle, wat type of cycle is used by air compressor, refrigeration plant
Main air compressor details, construction & PV diagram.Draw Air compr PV diagram for multistage comp
Purpose of intercooler in air compressor

Centrifugal Pumps
Centrifugal pump casing working. Type of Centrifugal pump used as me lo pump. Volute casing and centrifugal pump working
Types impeller? Why wear ring provided? Why does wear ring wear down?

Miscellaneous
Explanation about break point , how it is acheived, whether can be done for all engine or not
FAD.
From where unbalanced force induced
Wat will u get from a/l from the calculations
What questions u wrote in motor written exam
Whether you have done it how to do
Which force it is balancing
ocharger details and what type of bearing used it. Types of turbocharger

a affects n all.
Engine Specification
Engine type
Engine specification details (mcr,sfoc,pmax,pcomp,cloc) .
Engine spec , what u ll find from the performance and ask wat ce finally write as comment in performance sheet .
Explain about ur engine series
difference between Sulzberger cylinder head and man b&w
Engine specification for last ship? Calculate Mcr for ur ship?
Engine specifications with peak pressure , compression pressure and details
Explain C in MCC, y it's called compact engine ?
Sfoc for ur engine& calculation
Derive how g/kwhr obtained?
BHP calculation
MCR, NCR
wats MEP
Relation between speed power and fuel consumption
Weight to power ratio and it's important
stroke bore ratio and advantage
wats ultra long stroke
What is super long stroke and advantages over long stroke and how power to weight ratio is increased
specificatiion of engine not the number explain in detail
Type of scavenge
Wat type of engine and explain type of scavenging
In Ums ship what all Me trips and slow down alarms present.
Sump capacity

Engine Power
Engine performance and many cross questions
CE asking u to measure peak pressure of one unit how will u measure
How will you check the performance of main engine ?
Draw card and power card diagram and explain each phase
Draw power card and explain full process till power calculation and mep mip IP and effective power
Draw power card and indicator card, explain
Draw power card and mark TDC and BDC on it
How draw card is obtained
planimeter working, formula to find power.. spring constant wr it mentioned.. unit of spring constant.. etc..etc..)
how planimeter works
engine power calculation explaining
How to calculate power of an engine and hw u will adjust fr balancing (asusual lots of questions in it.
How power calculate in electronic engine
How Pmax , pcom is calculated from draw card .
pmax, p comp, MCR rating
How will u measure peak pressure

Engine General
Preparing engine for departure, ME not starting, actions
why air starting valve can't open when 30 bar air pressure acting on valve lid.
Pilot on board starting air valve leak , wat Ll ui do
One unit air staring line is getting heated up while manoeuvring , ur actions
Ur 4e reporting unit no 3 starting air valve getting hot.action.
one unit exhaust temperature goes high how to find out
1 unit exhaust temperature goes high how u came to know
One unit exhaust temp high what is ur action?
ME no 3 unit high temp.
All temperature from exhaust manifold upto egb outlet
Scavenge fire how will u come to know …
Scav fire and what is your response
How scavenge fire is found,what are the actions in case of scavenge fire.
How will you put it off .. what is the weight of co2 bottle for scavenge fire
Scavenge fire, What will be ur action,how will u find out which unit, What all inspection after scavenge fire.... ??
How you will fight fire, from where you will do inspection.
After scavenge fire u did unit inspection ... What all reports u will make.
As a 2e wat vl b ur action wen omd alarm activates.
OMD giving alarm , ur response to it
Main engine reversing procedure, wat all will happen, interlocks and safeties during reversing.
Common rail advantage
What is the hydraulic servo pressure value.
what type of pump used to create such high pressure.
Explain exhaust valve actuation in ME-B engine.
Explain fuel oil injection in ME-B Engine

Main Engine
Crankshaft alignment deflection
How to remove main bearing
How to take bottom end bearing clearance
Clearances taken in main engine
Crosshead brg removal
Checks on connecting rod
Where the crank shaft load is acting
Guide shoe forces
Main engine thrust bearing measurement
Chain tightening procedure
what are the reading u will take on piston crown and purpose.
What is general rule for minimum and maximum butt clearance for all engines ?
Difference btwn Main engine air cooler and compressor air cooler

VIT
Super VIT
Vit
VIT function and how fuel timing is advanced .
VIT how adjusted … how peak pressure increase in all units
VIT working, purpose
Explain about vit and wats action on engine
What is VIT...How its done in Man And Sulzer
types of fuel pump in each, Then under what circumstances you will cut out the fuel pump..
What is mean by ISO 8217
What type of fueloil burned in ur engine.
Fuel standards
Grade of fuel oil used onboard and their specifications
Grade of heavy oil and cylinder oil. Brand name

Lubrication
Main engine lubrication system
What cyl.oil used in ur ship
cylinder oil grade and name,
alpha lubrication and it's advantage

Aux. Engine
Write down name of generators on your previous ship- on man B&w- how to cut out fuel pump for 2stroke ...
Ae surge after 50% load- turbocharger was recently overhauled, what other checks u will carry out.
Turbocharger surging phenomenon.. what is happening while surging.. why is it happening
Ae connecting rod inspecting
How to check trueness , ovality, gudgeon pin clearence, where to check, how to check, what is mean by
Ae thrust bearing location
What is underslung engine & construction
Where the crank shaft load is acting
Crankshaft alignment deflection

Boiler
Accumulation pressure test Detailed procedure each step Both valves done at same time
At what circumstances accumulation pressure to be carried out.
Accumulation test purpose
Boiler safety valve setting
Boiler safety valve, what info you will give to surveyor before setting safety valve
Popping Up test of boiler safety valve..Procedure and what and all bypassed and blanked for doing this test...What certificate
Diff between safety nd relief valve
Boiler survey and Surveyor not interested in document what will do
boiler survey preparation
Boiler survey, what surveyor vl chk after raising pressure , and more que in safety valve .
Boiler survey, safety valve pressure set
Boiler trip tryout in front of surveyor
Boiler trips, accumulation pr test , safety valve setting?
Boiler alarms and trips, if low level alarm not working in front of surveyor, what will be ur action
Boiler water test procedures.
Boiler water tests , what will you find from blr water tests.
Draw tube design of egb
Exhaust gas boiler fire Indications

Refer
Purpose of TEV,
Expansion valve
Expansion valve, how to order, what details you will provide to supplier
wen entering from hot area to cold area what are all changes takes place in air conditioning equip
Refrigeration all gas leaked. How you will instruct shore technician ?
Suction and discharge press same in ref compr. Wat is ur action.
Why back presure valve fitted in veg room.
How one room temperature is maintained higher than the other reefer room.
Ac plant two room having different temperatures how to make same temperature
Meat room temp is dropping and reasons for it and what's the remedy as 2/e
meat room temp is raising he ask the reason and action u ll take..
Ref meat room temp high others rooms fine, action.
Refer meat room safeties
Refergeration high pressure cut out y given
Refregerant HP cut out.
what all reason referigeration compressor hp cut out.

Aux. Equipments
Compression ring in valve
Compressor why multistage..draw pv diagram
Why multistage in compressor? What is buming clearnace measured for?
Checks on centrifugal pump
Where the shaft can get bend, checks on impellers
Purifier optimisation
Diff type of gauges
PID controller
FWG working
There is the hole in FWG ejector line, how will you identify?
Steering gear safeties( only mechanical)
test...What certificate u will show to surveyor before doing this test..
Engine specification
Type of engine, how to say it is superlong stroke? Advantages and disadvantages of Super long stroke
Engine ratings
Engine specifications,MCR,
ME specifications
MCR ,MCR, Overload Rating
Do u know any other engine other then Man?
BHP calculation
Sfoc calculation

Power
Draw 2stroke timing cycle with all angles
Draw card -how to calculate power ,pmax from it,
Draw card showing ignition lag
Draw power card and draw card for broken piston rings
What is name of instrument used to take powerd card and indicator card?

Main Engine
Sulzer development from RND to RTA
Type of ship. MCC engine modifications.
What is version number and what all changes (Main engine)
ME interlocks - cross qns
What happens when you change telegraph position?
What is barred range and where you will find
What is braking air in crash astern
What is immobilization?
What is overlap in airstarting valve
Thrust block purpose and clearance measurements and value
Explain what is the importance and what is the problem happen in holding down bolts
Angle encoder working
Liner LDCL
Where ecentric cam connected?
Nox reduction methods

Cankshaft,Con-Rod,Crosshed,Main Bearing
Cross head bearing survey
Cross head precautions? After lifting the pin we have to lock crosshead slipper with the tool
Crosshead brg removal
During cross head bottom end bearing removal what precaution youll take on crosshead
Underslung crankshaft advantages
Explain main bearing removal procedure will you loose the tie rod
Main bearing survey
Guide shoe forces

Chain Drive
Chain slackness how you find
Chain tightening checks and procedure
Chain tightening procedure
Chain tightness how u do
Gear drive and chain drive which is best, why.

Lubrication
Alpha lubrication
Elasto hydrodynamic lubrication
Explain cylinder lubrication in ME engines?

Fuel System
Draw sulzer fuel pump?
What is Ignition delay and Injection delay
What is zero sac and normal sac draw and explain
Explain fuel injection in ME engines.
Is fuel injection load dependant?
Fuel pump lead
Fuel pump timings setting
FQS
Puncture valve function ,when it ll get activated if one unit puncture valve not getting activated then how u stop the engine
VIT & Super VIT difference in working
VIT purpose and complete structure ,
Explain vit and fqt? How it s done in sulzer
How is fiva controlled?
Describe FIVA ..how it works?
ELFI

Vibration
Axial damper
Axial vibration full with many cross qns
How axial vibration occurs
Moment compensator
Stresses acting on engine and cross questions.
Stresses acting on the engine and measures to reduce
Top bracing explain both types
Top bracing.. What all circumstances to check?
Types of vibration and damping arrangements
Vibration full... Explain Moment compensator cross qns
What are the various arrangements to overcome vibrations and stresses in main engine? Explain any one.(Ultimately i had to e
Why silicon is used in torsional vibration damper

Turbocharger
Aspect ratio of T/C
Diffuser and inducer in turbocharger
T/C everything regarding construction, bearing type, lubrication, safeties, clearances, why header tank is provided? What is d i
Turbo lag
What is lag in turbocharger?
VGT

Boiler
Boiler starting sequence step by step,
Caustic Embrittlement. And few more questions
How is boiler controlled?
PID controller
Type of boiler? What is turn down ratio?
FAD? Free air delivery

Miscellaneous
AE con rod checks
What is propeller clearance
Purifier optimisation
Purifier working principle
NPSH and efficiency curve.
OWS working principle
Multistage air compressor working
LMTD in heat exchanger
Stresses on tailshaft
u stop the engine

Ultimately i had to explain everything)


rovided? What is d interlock provided there for engine starting?
Engine Specifications
Main Engine Specifications
Engine details
engine powers and formula ip, bhp, effective power,delivered power,
How u calculate power? He is expecting both old and new methods in detail.
Effective power ?
How to determine power ?
Difference between MCR and CSR
Mcr and ncr?
CCAI
FQS
fuel treatments
Propeller characteristic curve.
Propellor curve ?
Sea margin ?
Light Running? margin ?
Heavy running condition?
Torque rich condition?
How will u find if an engine is Overloaded ?
What is critical speed?
What is under speed and Over speed of engine?

Indicator Cards
Indicator cards
Indicator cards and explain each
Indicator diagrams what all u find and how will you come to know if injector is leaking.
Serrations in indicator diagram
Spring constant

Main Engine
Holding down bolt
Holding down bolts purpose
What happens if slack
Crosshead survey and clearances
Csm- continuous survey of machinery
How u will prepare for main engine survey? He is expecting all clearances and measurement.
M/E Scav space inspection how will you train ur JE for this inspection
Telescopic pipe sealing?
Piston ring coating?
Why chrome coatings are micro cracked in ring groove
Will you take clearances using feeler gauge in Piston rings
exhaust bellow checks as 2e ,how to fit..
Tappet in 2 S engine
Vit and super vit?
Voice coil drive function in Fiva
Limiters in Main Engine governors. Explain with respect to load diagram
Lambda controller

Bearings
Main bearing survey and clearances
Bearing Layers
Bearing materials in ME and Aux Engine
Composition of Babbitt metal
Composition of White Metal Bearing/Tin Bearing
Floating and semifloating bearings
How to measure thurst bearing clearance?
Latest Developments in Bearings ?

Turbocharger
Variable geometric turbocharger
Explain hybrid t/c?
How much RPM to maintain in Main engine after cutting out TC
How to cut out ME TC
Latest development in t/c?
Latest tech in turbochargers
New Amendments in turbocharger

Vibration and Stress


All vibrations
Axial damper and torsional damper
External unbalanced moments. What is H mode and X mode vibration
Fatigue stress
Induction hardening why it is done on crankshaft
What is case hardening

Sox and Nox


About Nox technical file.
What is Nox technical file.. contents in nox technical file... List all the components
Latest amendment in nox, SCR
Methods to reduce Nox
Nox control methods. Explain HP SCR and LP SCR in detail
Nox n sox controlling methods with full working
Nox and sox reduction
Miller cycle
Closed loop and open loop system?
EGCS

Boiler
Boiler water test
Alkalinity purpose ?
P and m alkalinity?
Caustic embrittlement
Hard and soft deposits of boiler
Hot corrosion and cold corrosion
What are hard scales and soft scales?
Phosphate reserve in Boiler ? Purpose ?
Oil in Boiler . Actions ?
What does the Liq Coagulant do ? What is it made of ?
Liquid Coagulant composition
will you blow down after adding liq coag ?
cascade control,
Explain Improved high lift safety valve , how u ll make sure that valve has lifted fully?

Refer
Comfort zone in air conditioning
control air dryer, operation,what happening ...,
Tev ,equalizing lines,

PID Controller
Pid control detail explaining?
PID CONTROL. cascade control, split range control. Lot of cross questions in this
Pid controller
PID controller behaving erratically how will you approach
What is difference between p and I controller? Function of I controller?

Miscellaneous
Auxiliary engine starting system, complete explanation
Purifier vibration while running, as 2nd wats ur instructions to 4th engineer
resilient mountings
stp checks type,routines,y add chlorine,
follow up and non follow up of steering gear some more....
Tank material in your ship

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