E-Pariksha Online exam qestions booklet (with answers) for Class 4 Marine Engineering Exam

We have released the new updated E-Pariksha online exam booklet with answers for class 4 marine engineers. We have collected 980 E-Pariksha Multiple Choice  Questions with their answers including Numericals of MET and Ship Construction (also diagram question). This 148 page booklet comes with a small price. We will courier you the booklet to your home address. To know more information on this booklet, Pls mail on meoclassivhelp@gmail.com  or https://www.facebook.com/messages/epariksha.classivexam with your name and phone number.

MEK (Motor)- 303 questions with answer
MEK (General) - 126 questions with answer
Ship Construction - 163 questions with answers
MEP - 121 questions with answer
MET - 74 questions with answers
Safety - 183 questions with answer

Click here to check some of the E-Pariksha questions.

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Here are some pages from from the booklet

Difference between Circuit Breaker and Fuse

Circuit breaker:
Has switching actions to close the circuit or to open the circuit, and
has a trip circuit if load current exceeds the set value.
After tripping, circuit breaker can be reused without replacing any part.

Fuses:
Have only breaking function, and fitted in the circuit to protect the circuit from damaging effect of high current flow.
It breaks the circuit by melting the fuse metal itself.
After breaking, the blown fuse must be renewed.

Actions carried out when Electrical Machines (Motor) flooded with Sea Water

When Electrical Machine is flooded with SW:

• Machine is disconnected from power sources and dismantled.
• All salt deposits washed out with FW.
• If deposited with oily bilge water, wash out with Electro Cleaner.
• Should be heated with lamp, and enclosed or covered up to retain the heat.
• Moisture should be escaped, by lifting the cover continuously or periodically.
• Hottest part of the machine shall not exceed 90°C, while heating.
• IR readings and temperatures taken regularly, until constant value reach about 1 m Ω.
• Then, spray the machine with insulation vanish.
• Assemble and put in service with low load, if possible.

Explain a Dashpot used as a Time Delay device in Over load trips

Dash pot:
Dashpots are fitted for overload trips to get time delay action, so that breaker will not be opened, due to momentary current surge.
When load current is in excess, it attracts plunger of the solenoid.
Plunger or piston moves up against the displacement of viscose oil or silicone fluid, through a small hole on the piston.
Time lag depends upon hole size, and viscosity of oil.
Load current setting for trip is about 25% above maximum, but should not exceed 50%.

Explain Shore connection onboard a ship with class requirements and regulations

Shore connection box is provided at convenient position, to receive shore power supply, so that ship’s generators can be shut down, in port or Dry Docking.

Lloyd’s Requirements:
Connection box contains a circuit breaker or isolating switch with fuses.
Provided full information of supply system, normal ship voltage and frequency for AC current.
Main Switchboard must be provided with a link switch or a circuit breaker, voltmeter, ammeter, and an indicator to show that the cable is energised.
For 3-phase supply with earth neutral, an earthing terminal must be provided, for connecting the hull to shore side.
A phase sequence indicator is necessary to ensure correct connections.
Means shall be provided for checking polarity, and terminals should be labelled.

What are Ship (Marine) Battery Room Safeties and Maintenance carried out

Battery room inspection and maintenance:
Battery installation and its charging rectifier checked.
Battery room environment must be dry and well ventilated.
Battery tops shall be clean and dry, and terminal nuts must be tight and a smear of petroleum jelly applied to prevent corrosion.
Electrolyte at proper level, and shall have correct value of specific gravity by checking with a hydrometer.
Rubber gloves and goggles used when handling electrolyte.
Charging equipment checked for dirt, overheating, loose connection and correct functioning of indicators.
Ventilation arrangement for battery locker checked. Battery installation of both lead acid and alkaline needs good ventilation.
Since both type generates hydrogen gas during charging, no smoking and naked light allowed.
Steel works and decks adjacent to lead acid battery, should be painted with acid proof paint.
[For Cad-Ni cell, alkaline resistance paints.]
Battery Room Safety Arrangement:

Safety is provided by:
Proper ventilation
Prevention of heat source for ignition.

Ventilation:
Independent exhaust fan provided.
Inlet duct should be below battery level, and outlet at top of the compartment.
Prevention of heat source for ignition:
No naked light and no smoking.
Uses of externally fitted light or flameproof light.
Cables of adequate size and they are well connected.
Never placed Emergency Switchboard in this room.
Use insulated spanner and plastic jug for distilled water, to prevent short-circuit.
Room temperature, maintained at 15 ~ 25°C.

MEO Class 4 E-Pariksha important numericals of Ship construction and MET

• Ship Construction
• Marine Electro Technology

Revised regulations (changes) of Marpol Annex V to prevent pollution by garbage from ship

Major changes have been made in the Annex V of Marpol, Regulation for the Prevention of Pollution by Garbage from ships,  which is effective from 1st January 2013. The only discharges allowed are allowed as per Marpol Annex V are listed separately for special area and outside special areas.

Outside Special Areas 
Comminuted or ground food waste (able to pass through a screen with openings no greater than 25mm) allowed at a distance more than 3NM from nearest land
food waste and cargo residues that are not harmful to the marine environmentat a distance greater than 12NM from nearest land
Cleaning agents which are not harmful to the marine environment (contained in cargo hold, deck and external surfaces wash water)
Animal carcasses

Inside Special Areas
Comminuted or ground food waste (specification as stated above) at a distance of 12Nm away from nearest land.
Cleaning agents which are not harmful to the marine environment (contained in deck and external surfaces wash water).

• Ship should be enrouted
• A Revised Garbage Record Book
• Every vessel of 100 GT and above or carrying 15 persons or more shall carry a Garbage Management Plan.
• Ships 12 metres in length or more and fixed or floating platforms are to display placards notifying crew and passengers of the MARPOL Annex V requirements.
• Discharges of any garbage from fixed or floating platforms and from any ship alongside or within 500m of a fixed or floating platform are prohibited

What are Oil Record Book (ORB) entries as per Marpol Annex 1 for ships

Every oil tanker of 150 tons gross tonnage and above and every ship of400 tons gross tonnage and above other than an oil tanker shall be provided with an Oil Record Book Part I and Every oil tanker of 150 tons gross tonnage and aboveshall also be provided with an Oil Record Book Part II


Entries for machinery space operations ORB part 1 (all ships):
(i) ballasting or cleaning of oil fuel tanks;
(ii) discharge of dirty ballast or cleaning water from tanks
(iii) disposal of oily residues (sludge);
(iv) discharge overboard or disposal otherwise of bilge water which has accumulated in machinery spaces
(v) Fuel oil bunker and bulk lube oil;

Entries for cargo/ballast operations ORB Part 2 (oil tankers):
(i) loading of oil cargo;
(ii) internal transfer of oil cargo during voyage;
(iii) unloading of oil cargo;
(iv) ballasting of cargo tanks and dedicated clean ballast tanks;
(v) cleaning of cargo tanks including crude oil washing;
(vi) discharge of ballast except from segregated ballast tanks;
(vii) discharge of water from slop tanks;
(viii) closing of all applicable valves or similar devices after slop tank discharge operations;
(ix) closing of valves necessary for isolation of dedicated clean ballast tanks from cargo and stripping lines after slop tank discharge operations;
(x) disposal of residues.

Marine engineering knowledge (Motor) MEK MCQ for MEO class 4 online questions for marine engineers in india

• Online question 1
• Online question 2
• Online question 3
• Online question 4
• Online question 5
• Online question 6