MMD Noida 18.09.2017
CoC Attempt
Only Meena sir
Electrical
#Battery charging circuit, what is trickle charge and its ameperage
#MSB safeties
#how to find earth fault
#how to increase insulation of induction motor
#explain AVR, why voltage dip?
#explain SCR full, where is it used
#explain working of ICCP
MEP
#type of engine? 11K98ME-C
what is 'K' in above how is it classified?
#how to remove a stuck stud
#bunker oil leaking into cofferdam. how to fix immediately.. ans is to transfer bunker below the
crack in bulkhead
#fuel injector overhaul... testing, how to know it is leaking, how to fix leak (lapping of needle
valve not allowed..only replace)
#reasons why DG not starting... he wants all reasons
some more in mep I don't remember.
vizag , 18th sep
2nd attempt ( COC )
fn#3
- sheer strake and its purpose , where to where it extends.
- life boat regulations and its equipment.
- co2 room regulations.
- flare and its purpose at least 4 .
- marpol annex 1 discharge criteria.
- free surface effect and its effect in ship.
- IGG full
- Safties on tanker
Fn#6
- AE decarb and all clearances.
- centrifugal pump overhaul , checks and clearances.
- compressor overhaul , major parts to be overhauled for increasing efficiency and checks during
running .
- properties of LO comp.
- bilge pump not taking suction , reasons . how to find leak in bilge pump line.
- fuel injector testing and overhaul.
AND THEN INTERNAL ASKED HOW WAS UR ORAL .
IT WAS GOOD SIR.
GO YOU ARE PASS.
18/9/17 Mmd mumbai
Safety
sart regulations
Co2 fixed fire fighting system n periodic maintainance in detail
Lifeboat regulations n launching proced
On load offload release
Centrifugal brake n x questions
Solas ch 9 regulations n certuficates
Ch 11.1 n 11.2 in detail with lots of x questions
Solas regulations for electrical safeties onboard
Categories of noxious liquid substances n explain each
Discharge criteria for each substance above
Name classes under imdg code...he wants all 9 classes in order
Draw discharge connection for sewage
Define camber sheer block coefficent wake margin plate
Explain inclining exp
Angle of lol n x quest
Fse
Draw bulbus bow n advantages/disadvantages
Collision bulkhd
Draw ur ships transverse section
Anti heeling system expl
Electrical
Difference b/w lap n wave winding
Transformer constuction
Differnce b/w earthed n isolated neutral
Wat is resonance in ac ckt
Soft starter expn wrkg
Single phasing
Types of exitation in generator
Diff b/w dc n induction motor
Megger wrkg with diag
Static elect n x ques
How to parallel generator
Wat is t effect of kvar loading on motor
How tyristor wrk
Prefrenctial tripping
Reasons for loss of exitation
How to overcome ac/dc surge
Salinometer expln
Motor
Gear p/p charactistic curve
Npsh draw n lots of x quest
Wat is propelar n hull effiecy
Volumetric efficy
Crosshead lubrication draw
Cal power of m/e
Types of propellars
Crankpin lubrication
Tappet clearence
Draw holding down bolt arrangement
Diff b/w ball n roller brg
Wat is the use of stay plates
Why negative cam in starting system
Liner lubtication in 2 n 4 stroke
Draw rotary vane gear mechanism n x ques on steering system
Mep
Con rod bent how to find n renewal procedure
Purifier overhaul
M/e liner renewal procedure...he wants every step in order
Draw piston cooling system on ur ship
Bottom end brg renewal of 4s
Boiler water test
Refer short cycling reasons ...he wants atleast 7pts
Draw pintle brg clearence n how to chk n value
Rudder drop
Draw flairing tool n how it wrk
Reciprocating p/p ovehal
Gate v/v overal
Types of reamers...
N many more x questions cant remember
[20/09, 15:59] +91 97964 66685: NOIDA MMD MEENA ONLY
first attmpt
20/09/17
Motor &Mep
1.ME SPEC...CROSS QUSTN
2.VIT SUPER VIT
3.FUEL PUMP ME
4.START AIR SYSTM
5.START AIR INTERLOCKS
6.BEARING CLEARANCES
7.FUEL INJECTOR TESTING
8.LIQ CHARGING REF SYSTM
9.BOILER WATER TESTING
10.BLOWDOWN
11.GAUGE GLASS BLOWDOWN
12.BOILER SURVEY
13.ACCUMULATION PR TEST BOILER
14.EXHST TEMP HIGH IN ONE UNIT REASONS
15.REVERSING
16.SERVOMOTOR FUNCTIONING
Electrical
1.MSB MAINTENACE
2.WORKING OF IND MOTOR
3.440 V TO 24V
4.STARTERS
5.FUSES ND ORDERING
6.INGRES PROTECTION
7.BRUSHLESS EXCITATION
8.COMPOUND EXCITATION
9.PARALLING
10.WORKING OF CONTACTOR
Diagrams aate hai to sb sahi rhega nd be confident chaahe galat bolo... Zyada galat b na bolna
RESULT:MOTOR MEP ND ELECT
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