Function 4b orals

orals at dg shipping

10 dec 2013

taken by km rao

function 4b

1. explain y inelligent engine called intelligent engine? 

2. explain with diagram the flow of fuel oil through and fuel injector.show how it recirculates.

3.explain super vit.

4.how to calculate cylinder oil consumption? (scoc)

5.how fuel rack is brought to 0 when engine is stopped? draw and explain.

6.how l.o low pressure trip works to stop the main engine.he wanted to know evry thing in detail and complete.

7.high temperature fire.

result : repeat 

...he wanted every thing in detail n accurate with diagram.02-12-13orals at dgshipping kanjurmarg3rd attemptexternal- mr. k.m. rao

fn 4b1. why are we taking cards, draw all cards, significance of all cards, draw card when fuel injector leaking, during afterburning, compression pressure low, how will you avoid after burning if no fqs or vit is there, what is vec2. difference between sulzer rd,rnd and rta fuel pumps, fuel pump timimng of rta engine, 3. material of liner and properties of material of liner, piston ring4. what is running in, how will you carried out running in when one unit liner and piston rings renewed, 5. types of turbocharger, diff between ae turbocharger and me turbocharger, difference between radial turbocharger and axial turbocharger, how the thrust of tubine can be minimised6. turbocharger water washing and grit washing, duration, if grit is not available on board how will you go for it7. what all test carried out on boiler water, what is p alk and t alk, what happens if t alkalinity increases, what types of scales are formed in boiler how to avoid id and how to remove it8.types of crankshaft9. cylinder lubricator function is it load dependent or speed depedent10. if pmax is high what will happend respect to annex 611. purifier how it is disludge, what is the function of water chamber, pairng discs

the oral took almost 2 hrs, finally he said to wait outside. call me at 1730 and said go u r passed. finally cleared class 2

thanks to this group. keep posting guys it will be very helpfull to others in this group.

2/12/2013int-Dutta ext BadwalFun 3 4 6Type of propeller....wet or dry type...dry type...draw...position of nut & hub on shaft and materials.Starting air system ....y d position of kick lever is not aft interlocksFuel injector only Niddle assmly...lift? & how lift is avoided?Types of fire fighting in ER...working f portable foam extinguisher...composition of foamBlr safety v/v only spindle v/v & seat assembly.....dont show pin in v/v & spindleElectronic Governr.....How fuel lever is controlDraw card....DrawClr 4BIn all he is trying 2 confuse by lots of Xquestion.

4th attempt..Mr Mishra Function 4b1. IG system with safeties etc. each and everything2.Deck seal type on last ship. draw & explain..safeties, alarms and trips3.rotary type burner, draw4. liner material, with full composition5.Unloader diagram of Reefer6. Starting air system of ME with cross questions.

Fn 4bKapoor.1.chain inspection and tightening2. where will u check clearance in bottom end bearing and how?3. any servey attended on ship..i said main bearing then he asked procedure4..how will u come to know which servey is due?

fn4b..Mishra--specifications for mainengine,generator,boiler for last vessel--back pressure valve principle n diagram--types of rudder,bearing pintles purpose n diagram--boiler corrosion reasons--FWG salinometer working principle --main engine f.o system diagram n safeties in the system

29/11/2013Mr KM Raofn 4,6result: cleared 4

fn 41- What are the methods of reducing NOX?2- Details of NOX file?What components are listed in it??3- Why is an intelligent engine called so?4- Material of piston ring and liner ??5- Difference between material and construction of M/E and A/E piston ring??6 Types of bearings( he wanted thick shell ,thin shell type) and its details?1- If liner is cracked how will u take ship to safety??

2 Bearing material has wiped off, how to repair on board?3 How to do grit cleaning if grit is not there on board??

Badwal28/11/2013DGS3.4b,6

Air starting diagram.Air starting valve.Asked the procedure and abt how air is cut off after engine starts.Fuel injector wants to know abt thrust plate.how butt clearance measuredLoop scavenge and uniflow scavenge.

no other questions askedpassed 4b

date 28/11/2013badwalfunc 3,4b,5

Keyed and keyless propeller assemble diagSafety valve diagFuel valve diagRudder carrier diagFunction of tie rodStarting air system diag

Mr. sirish kumarFn 4What is the difference between sulzer rta t and rta m as I have done both?2- crankshaft deflection? Why? How? Draw table put readings. I did all- then what you will do? How will you determine the problem? Why do you plot graph? does anyone know the answer to why do we plot a graph?3- draw sulzer fuel pump. How it works? What is vit- how is it attached to pump and where. Where is fqs attached- in this I fucked up.4- me jcw exp tank level going down. What will you do. Told him some stuff- leak from, liner what will you do if no spare liner. I answered we can weld or cut off unit- he says you will never cut off- how will you weld? Dont know

4th attemptExt : barwalFun 3 & 4b1. Boiler safety valve2.propeller attachment dig etc3. Fuel injector, lift details4. Start air system5. Governor detailsResult : cleared 4b

1st attemptDGS kanjurnarg 08/11/13Only internal mr. K. M. RaoFn 4 and 6Differnce between crosshead of Rta and Mcc engineHow lubrication is acheived in detail. What type of bearing in crosshead. 

Lubrication of intermediate bearing.Thick and thin shell bearing diff, whr dey are used, can they b used in same engine? Diff bearings in a engine.MCC engine main bearing removal in detail..cross questioing in every point.Slippage of journal, what will happens how will u find out slippage. Exhaust temp of one unit going up.Crankcase inspection? Types of boiler on ur ship.Steam pressure reducing valve principle?

8 Nov 2013Dutta and one more but not interested in listening.

Func 4What types of different fuel injection system are there?Explain in detail common rail.Q.As I have done Mec engine. He asked difference between it and MccQ.Cylinder lubrication of sulzer and Man difference? Diagram.Q.diff. between cloverleafing and scuffingQ.CYLINder lube oil how changed on Man.what values u use and value u calculate to put in HMI?Q.different types of choks and the procedure of bedding?Q.Define engine structure? How u tight tie rods.what to check in tie rods from crankcase.

11/11/13kanjurmarg1st attemptInternal Mr.Dutta, External Mr Duttar

fun4brta and man x-head diff, why 16bar used in rta4stroke con rod checks, why ovality only in 4stroke, conrod bolt stress(ans only tensile)

Orals 8/11/13DGS kanjurmarg1st attemptInternal-banerjee, external-KM RaoOral taken only by KM Rao

FUNC4-Types of engines done. .RTA, B&W GFCA.-Type of cylinder lubricator in RtA, explain how flow of oil is regulated to cylinder depending on load.-difference between m/e &a/e governors....explain working of both M/E electronic and hydraulic governor in detail. -How in sulzer engine fuel cut off takes place when engine is brought from running to stop condition.-boiler water tests. .. explain all recorded parameters. .etc-gentrator decarb.... wat all checks n inspection u will carry out on diff parts during o'haul.-Purifier.... as 2nd engr,What all inspection n checks during boxing up.How interface is maintained in ALCAP Purifier. -if oil level is low in refer compressor and if there is fall in refrigerating effect...how to detect n wat action ul take to rectify.

Again, lots of cross questions even when u think u answered correctly.....

EXTERNAL:RAJIV PRAKASH TOOK MY ORALSDATE:08/11/2013WHAT TYPE OF SHIP DONE

FN-4B1. ENGINE SPECIFICATIONS WITH ALL PARAMETERS AND THEN ALL CARDS WITH EXPLANATION2. PISTON DEVELOPMENT AND WHAT IS ORAS IN PISTON3. BUTT CLEARANCES ,WHY NECESSARY , WHAT EFFECTS AND EVERYTHING ASKED ABOUT BUTT CLEARANCES4. TAPPET CLEARANCES ,IF MORE WHAT HAPPEN AND IF LESS WHAT HAPPEN5. HOW SEALING IF FORMED IN 2S ENGINE BETWEEN LINER AND PISTON WITH DIAGRAMFN61. CONNECTING ROD INSPECTION ONBOARD,WHY SERRATIONS ARE GIVEN,DYE PENETRATION TEST2. PRINCIPLE OF PURIFIER AND ALCAP SYSTEM, WHAT DIFF IN CLARIFIER AND PURIFIER3. BOILER WATER TEST ON BOARD , WHAT U WILL DO IF MORE OR LESS VALUE OF TEST RECORD,WHAT ACTION?

06/11/13kanjumargext-dattar. , internal - A.B. duttaall functionsfunction 4btype of engine worked.Man B &W MCwhat is the difeerence between MC and MCC engine..serrated con rod checks? why ovality occur in 4s not in 2sgovernor limiter?(scavenge limiter and torque limiter how do they work)

Date- 6/11/2013KanjurmargExt-trassi baba and internal-gadkar

Fn.41.difference between RLA &KSZ fuel pump( as i did only sulzer rla and man ksz eng)2. RLA fuel pump timing3.KSZ stand for what

29 OCT 2013KANJUR MARGINTERNAL: MR GADKAR EXTERNAL: MR DATTAR(IMEI)2ND ATTEMPT

FUNC 41 types of engine...both smc and rta.....was happy said with a smile...now i can ask you on both....i also smiled...2. diffrence in fuel pumps...and cross head bearings....was happy with the answer3. what is vit and super vit?4. how is fqs achieved in smc....5. tri metal bearing.....why ni dam

6. how is cylinder lub achieved in sulzer7 tribopack technology

6 november trassi

Function 4B :1. Engines worked on : SMC-C 2. fuel pump timing of SMC-C engines?3.working of Ref Unloader.4. Performance on Generators?5. M/E Main Bearing Survey. 

6.11.2013Tarasi sir n gudkar sir..All function Fn4b1.Types on engine worked, as I worked on mc and mcc engines... specifications n bore to stroke ratio...2.Sulzer fuel pump timing... (asked about tool for for removing valve n valve sheet... drawn as given in rahul's note but not satisfied asked 2 refer mannul...)3.Tie rod tightening procedure told...4.Differece between mcc n me engines...

datrpol annex 1e: 06/11/13kanjumargext-dattar. , internal - A.B. duttaall functions

function 4btype of engine worked.(sulzr 7rta 72u and 6rta 48d)what is the difeerence between two engines, what does d and u represents and 2 and 8 represents.s2 stroke x head difference between sulzer and b&w? y we r maintaining 16 bar in sulzerserrated con rod checks? why ovality occur in 4s not in 2sy nox emission more in 2s than 4s?(high temperature for long period in 2s)quills working , pulse jet and alpha lubricator difference and working principle?governor limiter?(scavenge limiter and torque limiter)in drydock while assembeling propeller what will u check?

oral on 31st oct 2013mr. trassi and mr. benarjeefn 3 and 4b

fn 4b1. use of countersunk screw onboard?2. how do u find out ur generator engine air cooler is leaking?3. manoeuvring diagram4. how to make sure that ur jack bolt is perfectly fitted?

29/10/13Kanjurmarg3rd AttemptExt: Mr.Trassi. Int: Mr. Datta.

Func 4b:

1)Main engine hunting reasons?2)Reasons for vibrations in the Main Engine?3)Refer unloader working mechanism?4)A/E air cooler is leaking, how will u find out during rounds and how will u confirm from where is the leak?5)Smc fuel pump timing?

Oral 31 oct 2013Mr trassi n banerjee

Fn 4b1. Diff bet tie rods of b & w n sulzerShort n long type, distance(tick)2.smc fuel pp timing adj. (Tick)3. Aux eng performance85/90% load, tk all parameters n compare it with sea trial data wrt that load.(tick)

30th oct DGS KanjurmargMr KM Rao Fun 4RT flex, lot of cross qtns...crank angle sensor, recirculation of fuelcyl lubrication system on sulzer advan disadvan againt conventional...do not say precise timing! mechanical lubricator working principle, includin drive prttypes of steel ....wat is brittle ....how to increase tensile strength...hardness...lotson materials and properties...Stuffing box checks, clearances, materials...

30.10.13 datta n badwal

fn 3,4b

types of boiler,drawdraw safety valvemanoeuvring diagramexplain governor line to fuel pumps with diaarrangement to prevent motoring in steering,drawstartin air valve n lot of x-question in thatthats all he asked

29/10/2013DGS 2nd attemptK.M Roafunc 3which ships done Fun 4b1. Ok nw u have taken oil with more ash content...onboard wat all measures u wl take ...i tol optimum purification with less feed...send sample to lab after purifier....now tell me parametrs in M.E which wl change wen ash content is high...2.what is static and dynamic balancing...3.What is vibration...vibration is heigher in 2stroke or 4stroke eng....

4.UR ships FFE... i tol foam...its working...5.Maintainance on Foam... Fun 61.Main eng Main bearing clearance hw will u take...told him wl remove lube oil pipe ...we have a depth gauge...he tol antting else...i told by telescopic type feeler gauge...wl u get correct values frm it...i tol not soo mch...i tol bridge gauge...he wanted tat only....2.Main bearing removal procedure....isolate,risk ass and all those stuff....what is risk assesment...told in my own wordswe wl identify all hazards and we have a chart ...we wl check etent of risk...3.Generator decarb what all checks...Wl check piston bush clearance...piston ring butt clearance...ovality of con rod...connectin rod bolts...hw wl u check conrod ovality and wat checks in conrod bolts....

24/10/13Mr. Datta and Mr. IqbalNew Dgs

Fuc 31.Inclination expt in detail2.why bilge plate is under stressed all time3.garbage mgt plan4.Nox reduction method5. Sox reduction method6. What is situation awareness? 

Func 41.engine worked on2. ME-B engine in detail3.double impeller pumps4.top bracing present in which type of engine?5. fundamental idea behind top bracing?

28/10/2013, Mishra

fn-3solas chapter-11tanker deck fire fighting system and foam namehow to ensure that foam is correct for fire fightingannex-6how to calculate ships speed

fn-4types of safety valvestypes of fuel pumpsrefer unloadertypes of fwg and working of salanity

orals on 28/10/2013int; dattaext; badwal

fun: 4b

1. uniflow and loop scavenging2. starting air line in deep3. fuel injector4. starting air valve

5. difference in main engine and aux. engine governor

finally cleared class 2 with gods gracethanks everyone

29/10/13.....TRASSI SIR AND DATTA SIR

FUNCT 4B1)MAIN ENGINE VIBRATING REASONS2)HUNTING OF MAIN ENGINE REASONS3) HOW TO TAKE PERFORMANCE OF GENERATORS,PARAMETERS,PEAK PRSSURE TO WHICH VALUE TO COMPARE WITH,HOW WILL YOU COME TO KNOW THAT CORRECT PEAK PRESSURE HAS BEEN MAINTAINED,....ETC4)WHICH IS THE EMERGENCY STOP THAT IS LOCATED ONLY ON BRIDGE

FUNCT 61)TYPES OF THREAD2)SCH 403)REFRIGERATION COMPRESSOR UNLOADER MECHANISM

2 attempt24/10/2013mr iqbal and mr dattafunction 4

1. vit and supervit in brief 2. main engine full details3. caustic embrittlement in boiler4.type of main engine lub oil pump and why?5. mc and mcc difference6. vibrations and remedies

25/10/13Mr datar and Mr gadkar.4th attempt.

4b-difference between rta and mc crosshead bearing.c/q use of 15 bar pressure.- difference bet. white metal and tim aluminium bearings-Tribopack- electronic cylinder lube oil system used by sulzerc/q workin of PLS system.-T/c surging causes.-VTA T/c-significance of CCR as per ISO 8217- CCAIc/q ignition lag will affect 4s or 2s more?

3rd attemptdattar ( not imei one) and datta25/10/13

funtn 4btype of ship sailed on, grt and bhp, diference bet man and uec engine as i have done bothengine construction- bedplate, foundation bolts, a frame , draw chocks,

how chocks are placed while construction,- i told him we will jack up then how will u make sure its sitting correctly ans is to apply persian blue he gave me hint of purifiertie rod tightness and checks. pinching screw location i said in crank case.if it breaks then procedures. draw chain drive, how to tighten it..what is moment compensatorvit for man then difference in sulzer, super vit, fqs- how it functions- how it operates.

3rd attempt24/10/2013Mr. Iqbal quatib and Gadkar

Fun 4Which type of engines you worked on I told him all MAN B & W MC-C engines6. What type of turbocharging on your ship….. I told him constant pressure…..and on generator….. I told him pulse turbocharging……so he asked me can we put pulse in M/E and constant in gen…..i said no because both has unique qualities for 2- stroke and 4-stroke.7. Main air compressor safeties, bursting disc in both side or intercooler and aftercooler or not, I told him L/O low pressure trip then he asked me which type of lubrication does your compressor has I told him splash then he crossed me how then L/o low pressure trip,I also told him fusible plug which is air bottle safety.8. In refer plant TEV is there it has capillary tube which liquid and its purpose….. I told him to decrease superheat so that in evaporator coils more latent heat is absorbed ….but he was not satisfied.9. Which type of propeller on your ship single screw or double screw….i told him single screw he asked me which has more efficiency with respect to same power o/p….. I told him single screw …. He asked me why….. I have told him due to losses in single screw is more….. but he was expecting some answer relating SEEMP funda which I didn’t know.

Orals on 23.10.13. Mr. Pakrashi. 

Function-4b 

1) Thrust block2) Types of turbine blade....how nozzle ring is secured.3) Exhaust v/v and v/v seat material.4) Camless engine advantages.

22nd Oct-2013DGS KANJURMARGINTERNAL: MR SUKUMARANEXTERNAL: HIS NAME WAS CHAKKI I GUESS ,BASICALLY HE WAS TRAINING HIM HOW TO TAKE ORALS.

FN4:1.WHAT ARE THE SAFETIES IN FRAMO SYSTEMS?2.WHAT ALL MAINTENANCE U CARRY ON THAT SYSTEM?HOW WILL U PURGE THE COFFER DAM?DRAW SIMPLE SKETCH?WHAT WILL YOU DO IF YOU FIND OIL?3.WHAT IS THE DIFFERENCE BETWEEN BALLAST PUMP & CARGO PUMP IN A FRAMO SYTEM?4.HOW MANY SEALS ARE THERE IN CARGO PUMP?WHERE ARE THEY PLACED?5.TIE BOLTS?FUNCTION OF TIE BOLTS?AS A SECOND U HAVE TO CHECK WHETHER

THEY ARE SLACK OR NOT HOW WILL YOU GO ABOUT IT?6.THIS WAS NEW BY THAT TRAINEE?WHY IS LAMBDA CONTROLLER CALLED LAMBDA CONTROLLER?I TOLD HIM FUNCTION BUT HE SAID BY NOW U KNOW THAT BUT WHY IS IT CALLED LAMBDA CONTROLLER?

orals at DGS 26.09.2013Mr Banerjee and Mr trassi Fn,3,4B,6 Asked to write to previous questions didint as anythg from dat 

Func 4B

1) Difference between VIT and Super Vit Wrt to MAN BW Engines ..2) Arrangements of Loading Discharging Pipelines In VLCC to prevent Hogging and Sagging ,and static electricity. Drawn Diagram ..3)Why SDNR valve Provided on discharge side of Air compressor?.4) Specs of Brine .?

Trassi and datta, 

Fn4b :1. Boiler bulge repairs.2. Lantern ring 3. Thrust pads clearance and maintenance4. Various s/b ratio of engines I have worked on.

28th august 2013

mr. trassimr. ghadkar

fn 3 , 4B, 5......

fn 4

1) vlcc center tank coating....... acording to our discussion i said "amine cured epoxy phenolic resin applied 3m from top 3m from bottom and on the floor".... but he said that i missed smthing..... to give me hint he said "ur tank vl get coroded"....... but i cudnt remeber anything

2) rtflex reversing......

3) tie rod tightening.......

4) m/e t/c(water cooled) holed...... same according to our discussion but he asked 1 more corss question "in air cooler from wher u tap a line.....???"..... i said "from manometer"..... he didnt agree....... then i said "from press. gauge"..... he didnt agree.......

Abhishek sharma

Orals @ dgs on 07/10/2013Mr. Banerji/mr. trassi but only mr. trassi was there.Types of ship and cargo carried?

Fn 4..1. Sulzer fuel pp timing? Stopped me for fn of pressure bush..told him to hold the valves with help of springs..didnt agree2. Types of purier worked on ? why use brakes? Told him sludge wala funda …agree3. Why jack bolt used in sulzer and not in b& w?4. 4 s conrod speciality?told him all but not agree with oblique cut..5. Some more..cant recallFn 5..1. Zener diode? First line shud be that it works as relief vv in elect system..happy…thed asked whr it is placed? Told him that it is placed in safe area and o/p goes to hazardous area.2. Msb safeties all..int and ext…told him all then he told me u r missing one more..in last I told him that is case of fire it can be disconnected from other section with help of a breaker situated at rear panel…3. Syn motor working and whr it is used?4. 1 more ques.

Fn 6..1.smc bearing survey2. How to start msw pp and y disch vv is kept shut…not agree for high current funda.3. cross blow down?exp with diag.4.types of thread with dies? wanted to listen full name instead of bsp,bsw…5 life boat buoyancy test..told him to check freeboard when life boat is new but not agree.i think this was my failing ques in this fn.guys pls comment on this…He was getting late for lunch so he told me to stop.