Question Bank for the FRESHERS

For the FRESHERs!!! (Chennai MMD only)

As a fresher if you don’t know what to prepare, this question bank should help you.

(From now on  you can’t say you don’t know what to prepare;-))

As a minimum prepare answers for the following questions for your first attempt. (for Chennai MMD only)

(Please don’t ask me for all the answers!!!)

Also keep track of trending questions for that week/month from FB group.

Recommended reference books:

Reed's Naval Arch, Ship Construction

Eric Tupper - Introduction to Naval Architecture

SOLAS, MARPOL (latest editions)

Reed's GEK

Reed's MEK

Lamb’s Q&A

Dennis T Hall -  Marine Electrical Knowledge

McGeorge - Marine Electrical Equipment and Practice

Fernandez  - Marine Electrical Technology

*All your ship manuals

NOTE:

*  Bulk carrier specific question

#   Tanker specific question

$$ Container specific question

Function 3

Basic naval arch & ship construction terms. (Refer Eric C. Tupper from Pg 414)

GRT, NRT, GT, NT and their significance.

LOA, LBP and their significance.

What is sheer and why it is provided?

Types of floors.

Stringers

Stiffeners

What is lightening holes?

What is freeing ports?

Types of bulkheads.

Advantages of corrugated b/h.

Collision b/h and its purpose and specialty.

What is Class A fire b/h? Where they are used?

Also prepare class B & class C .

Paint locker safeties.

Transverse section of ur ship.

$$ If container, why torsion box?

$$ What is TEU. Its types & their dimensions?

*If bulk carrier, why hopper  is provided?

*Bulk carrier special safeties.

*Ingress alarm regulations.

*Cargo hold smoke detection system.

What is bilge keel? from where to where it extends?

What is duct keel? from where to where it extends?

What is Load line/ Plimsoll line?

Load line diagram. What each item on it signifies ?

What is Fresh water allowance?

What is TPC?

What is Angle of Loll? How to correct it?

What is Margin Line?

What is reserve buoyancy?

What is freeboard?

What is condition of assignment of freeboard?

# * Why tankers have less freeboard?

# * What is Permeability? Permeability values for E/R, cargo spaces, stores, accommodation.

# IG system, composition of IG.

# Flammability diagram and explanation.

# Uses of pv valve, pv breaker, deck seal. (how many provided and where provided)

# Mast riser

Bonjean curve, Curve of Statical stability.

What is Free Surface Effect? What actually happens due to FSE?

How can it be avoided and how it can be reduced?

Know all the chapters in SOLAS  in their order?

* If u r bulk carrier then Chapter 12 complete!!!

What is ISM? Explain. Certificates under ISM and their validity, renewal etc.,ISM is under which chapter of SOLAS?

What is ISPS? Explain. (including security levels) ISPS is under which chapter of SOLAS?

Explain each Marpol Annexes and certificates & equipments under each Annex.

E/R bilges discharge criteria.

ORB entries.

What is SOPEP? What it contains? Items in SOPEP locker.

Fire Control Plan.Its contents.

Safeties in fire main. Why drains provided? Why relief v/v provided?

Isolation valve and its purpose. Normally kept open or close?

International Shore Coupling and its use. Its dimensions.

Standard Discharge Flange and its use. Its dimensions.

Explain Fixed firefighting in E/R.

If CO2,  how many bottles in CO2  room. How CO2  is calculated for E/R (formula)?

Draw CO2  extinguisher. Why horn? Why siphon tube? How to distinguish co2 extinguisher from others?

How foam is formed in Foam extinguisher?

S/G regulations.

S/G motor safeties.

S/G room safeties.

E/G regulations.

E/G supplies.

EPIRB

SART

Function 4b & 6

Draw various indicator diagrams. (Power card, draw card, compression diagram, light spring diagram) and significance of each diagram and how u get each of the diagrams?

What is Peak pressure, Compression pressure and where u get them?

What is MEP, MIP? And their values for ur engine.

What is compression ratio?

How Indicated power is calculated?

How BHP is calculated?

What is SFOC? How it is calculated?

M/E specification and what each letter denotes?

Advantages of super long stroke.

M/E interlocks.

M/E Safeties

M/E Cylinder head mountings.

What is Puncture valve? Its function. (MAN B&W)

Fuel injector parts and various tests done on fuel injector before commissioning.

How Starting air line explosion takes place?

Safeties in starting air line.

Types of scavenging.

What is overlap period?

Why scavenge air is cooled?

Types of turbochargers.

What is T/C surging. Reasons.

Piston ring clearances and their significance.

What is Piston Cleaning Ring(PCR)? And its purpose.

What is Anti-Polishing Ring(APR)? And its purpose.

One unit exhaust temp is high. Reasons?

How cylinder is lubricated in M/E? (If alpha lubrication then know its working.)

What is ovality of liner?

What is clover leafing?

M/E lube oil flow.

A/E lube oil flow.

M/E starting air system.

A/E starting air system.

M/E Crankcase inspection.

Stuffing box overhaul.

Why crankshaft deflection is taken?

How will u start the Generator manually?

Generator trips (both mechanical & electrical) and how to check the trips are working?

A/E piston overhaul & checks done on spare piston.

Working principles of FWG, Ejector P/P.

FWG troubleshooting like “vacuum not building up, high salinity etc.,”

Special arrangements in FWG suction line and Distillate outlet line.

Air compressor safeties.

Why intercooling? State as many advantages as possible.

What is Bumping clearance/clearance volume? What if it is more or is less? How it is taken?

Compressor valve parts and their functions. and overhauling procedure.

How will u start the Main Air Compressor(MAC) manually?

Why reefer compressor is belt driven?

Advantages of Vee belt.

Refrigeration circuit with block diagram.

How refrigerant is charged in the circuit? Both liquid & gas charging.

HP trip and LP cutout difference. Reasons.

 What happens if “Low charge”?

Why Back pressure valve is provided in vegetable room?

Thermostatic Expansion Valve diagram.  Function of TEV.

Operating principles of Purifier, OWS.

Purifier – Clarifier difference. State as many as possible.

How  motion transmission takes place from motor to bowl?

How will u start the Purifier manually? Manual desludging procedure.

Purifier overhauling procedure. Know the sequence.

Special tools required for purifier overhaul.

Purifier troubleshooting  like “purifier overflowing, bowl not closing, bowl not opening for desludging etc.,”

Boiler mountings.

Boiler safeties.

How will u start the Boiler manually?

Boiler gauge glass blow through procedure. And cross questions.

Boiler blow down procedure. Sequence of valve operation.Why so?

Why boiler water is treated?

Boiler water tests.

Boiler sampling line special arrangement.

What is cascade tank? Why it is provided? Safeties in cascade tank.

Oil in observation tank. Action?

Oil inside boiler(gauge glass). Action?

Sewage Treatment Plant (STP) working.

STP mountings.

What if blower of STP is not working?

Capacity of sewage holding tank.

Centrifugal p/p parts and their functions.

Overhauling procedure.

What is lantern ring?

Wear ring clearance value and why it is provided?

Globe v/v parts.

How to know the valve is a N/R valve or not?

Function 5

Safeties provided on MSB.

Generator paralleling .(conditions, procedures) and cross questions.

Generator   trips and their set point.

Explain Reverse Power Trip.

Explain Under Voltage Trip.

What is Preferential trip? And why provided?

True power, Apparent power, Reactive power.

Fuse-Relay-Circuit breaker differences. As many as possible.

Types of fuses.

Fuse ( Inverse current time)characteristics.

What is Single phasing?

Motor operating principle.

How speed of motor is controlled?

Induction motor working.

Synchronous motor working.

Motor name plate details.

Why we need starters?

Types of starters.

Explain each starter with diagram and where they are used. What each starter does? Also study SOFT STARTER.

Alternator working principle..

Alternator specifications.

Alternator maintenance.

What is Air gap? How much it should be? What if it is less & what if it is more?

Megger working  ,diagram and safety.

How insulation resistance is measured thro’ megger? What should be the IR value normally?

How insulation can be improved?

What is space heater?

What are the classes of insulation?

What is Class F insulation?

AVR working.

Components in AVR.

What is residual magnetism?

Transformer working principle.

How transformer is cooled?

Various voltages used onboard.

Contactor  maintenance.

Thermistor

Thermocouple

Battery room safeties.

Battery room maintenance.

Electrolyte used in Lead acid battery and Ni- Cd battery.

Chemical equations for the type of battery used on ur ship.

What should be the density of electrolyte when the battery is in FULLY CHARGED & FULLY DISCHARGED condition.

Difference b/w intrinsically safe & Explosion proof.

Intrinsically safe voltage & current values.

What is short circuit? How will u identify it?

What is open circuit? How will u identify it?

440v Low insulation alarm. Action?