Test online for seafarers working in Engine Room (Operational, Medium Speed) (CES v6.0)

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The test consisted of 80 random questions.
Total questions on this topic: 120
Your result: 76%
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Right answers:
1

What would be the effects of a ship passing into shallow waters?

Your answer is correct:

The ship is less responsive to both rudder and propeller.
2

What is the first action that should be taken by the rating on boiler watch in the event of a flame failure on the boiler?

Your answer is correct:

Call the engineer on watch.
3

Give the meaning of the following symbol:

Your answer is correct:

Child’s lifejacket.
4

What are the lists called that give the position and task during a lifeboat drill for all persons on board the ship?

Your answer is correct:

The Muster List.
5

The engine room rating has been assisting with ballast operations during a period of engine room watch duty. Ballast operations have stopped for a couple of hours while stores are being taken. What action should the rating take during this break in operations?

Your answer is correct:

Stop all of the ballast pumps and close all of the ballast valves as soon as operations are stopped. Ballast lines should always be closed except when they are being used.
6

As per international regulations, the minimum inert gas pressure required to be maintained in slop tanks if slops are retained on board is:

Correct answer:

100 mm/water gauge.

Your Answer:

10 mm/water gauge.
7

What kind of extinguishing-remedy would you choose to put out an electrical fire?

Your answer is correct:

Dry extinguishing remedy.
8

An electric motor is to be aligned to a pump by insuring shims under the motor feet. Which of the tools given in the options would be used to check that the alignment is correct by measurement of the gap between the coupling faces?

Your answer is correct:

A set of feeler gauges.
9

Give the meaning of the following symbol:

Your answer is correct:

Foam release station.
10

What is the most likely cause of black smoke at the boiler exhaust during normal operation of a steam boiler?

Your answer is correct:

Insufficient combustion air.
11

What measures should be taken when handling mail?

Your answer is correct:

X-ray or scan parcels before opening them.
12

The threads on the drain plug for the bronze end cover of a sea water cooled heat exchanger have been badly damaged during maintenance. There is no spare brass plug available. What is the best solution for repairing the heat exchanger?

Your answer is correct:

Make a new brass plug on the lathe to fit the drain hole.
13

What would be the most probable cause of high temperature readings for the bearings in a diesel engine?

Your answer is correct:

Lubricating oil pressure too low.
14

When shutting down the flue gas plant, the last step that the operator shall carry out would be to:

Correct answer:

Shut down of inert gas blower.

Your Answer:

Open ventilation valve to atmosphere.
15

What does the word “pyrotechnics” mean?

Your answer is correct:

Pyrotechnics are the items which are capable of self-contained chemical reactions for the production heat, light, smoke and/or sound.
16

What is the first thing that should be checked when taking over a boiler watch?

Your answer is correct:

The boiler water level.
17

What is meant by the term “segregation”?

Your answer is correct:

The planned, separated stowage of cargoes that may react dangerously with each other in the event of leakage or other damage.
18

During cargo or bunker operations, oil response equipment is to be:

Your answer is correct:

Ready for immediate use.
19

In carbon dioxide fire-fighting systems for use in machinery spaces the fixed piping system shall be such that:

Correct answer:

85 % of the gas can be discharged into the space within 2 minutes.

Your Answer:

100 % of the gas can be discharged into the space within 3 minutes.
20

What is flashpoint of an oil or liquefied gas?

Your answer is correct:

The flashpoint for an oil or liquefied gas is the temperature at which it is possible to ignite the vapour above the liquid.
21

An alarm signal consisting of seven short blast followed by one prolonged blast is sounded by the ship’s whistle and alarm bells. What are you to do?

Your answer is correct:

Go to your lifeboat station.
22

What is generally considered as the minimum safe time period before opening a crankcase door after the oil mist detector alarm has activated and the engine has been stopped?

Your answer is correct:

After at least 20 minutes.
23

The normal carbon content of Crude Oil is in the range of:

Your answer is correct:

83-87 %.
24

Personal protection equipment appropriate to the task should be worn during work in the engine room. Which of the tasks given in the options requires that safety goggles should always be worn?

Your answer is correct:

When you are working with power tools or chemicals.
25

An important quantity which is useful in circuit analysis is known as conductance G (Siemens). Which of the formulas A to D expresses the conductance for this circuit?

Correct answer:

G = I/R.

Your Answer:

G = R*V.
26

Welding and burning are two operations which give the highest risk of a fire on board ship. Which of the following safety precautions may be regarded as the most important in order to minimise this particular risk?

Your answer is correct:

The area where the welding is to take place and adjacent spaces to be cleaned and all unnecessary materials and objects to be removed.
27

Why should boiler sootblowers normally only be operated in the correct sequence?

Correct answer:

To ensure soot is cleared progressively from the bottom tubes to the top and toward the boiler uptakes.

Your Answer:

To avoid excess stress in the boiler.
28

What is the minimum number of channels required for the portable two-way VHF’s for survival craft?

Correct answer:

Channels 6, 13 & 16.

Your Answer:

Channels 6, 12 & 16.
29

Hot work is to be carried out close to a smoke detector in the engine room. What precautions should be taken?

Your answer is correct:

Notify Deck Officer and Engineer Officer in charge. The loop for the smoke detector should be isolated while work is done and normal precautions for hot work taken including permit to work.
30

After checked for open airway, given the first two inflations and checked the pulse to make sure that the heart is beating, what is the rate of inflations given until natural breathing is restored?

Your answer is correct:

12-16 times per minute.
31

What is the emergency channel on VHF?

Your answer is correct:

Channel 16.
32

Which of the options given is the main reason for using a ring spanner to tighten the brass nuts on the cover studs of a pump casing?

Your answer is correct:

It will minimise the risk of slipping off the nut or damaging the nuts.
33

What signal, if any, is specified in SOLAS as the “Abandon ship” signal?

Your answer is correct:

Seven short blasts followed by one long blast.
34

During an oil cargo discharging operation, the IG supply to the tanks fails. As an OOW you would:

Your answer is correct:

Immediately stop the discharging and inform the Chief Officer.
35

What actions should the Officer of the Watch take when the ship’s steering gear fails?

Your answer is correct:

All of the suggested answers.
36

Which of these are indicators that an individual may be a drug smuggler?

Your answer is correct:

The individual wears bulky or out of season clothing.
37

What are the lists called that give the position and task during a lifeboat drill for all persons on board the ship?

Your answer is correct:

The Muster List.
38

With reference to the efficiency of cargo pumps on oil tankers, the abbreviation NPSH stands for:

Your answer is correct:

Net Pressure Suction Head.
39

Which of the methods given in the options should be used to test a remote reading temperature gauge for the auxiliary boiler exhaust gas?

Your answer is correct:

Check the resistance change in the sensor over a known temperature range against the resistance values in the product sheet.
40

What type of fire integrity must be provided for an engine control room?

Correct answer:

A 60.

Your Answer:

B 15.
41

When cargo discharge reaches stripping levels on an oil tanker, it is necessary to reduce the inert gas pressure so as to:

Your answer is correct:

Minimise blowback.
42

You are carrying out a search in a smoke filled compartment wearing a breathing apparatus. At what stage should you start to make your way out of the compartment?

Your answer is correct:

Regularly check your pressure gauge and note how much air you used to reach your work area. Start to return when you have this amount left plus a reasonable reserve.
43

What could be the cause of a refrigeration compressor running continuously even though normal temperatures for the cold rooms have been reached?

Your answer is correct:

Low-pressure cut-out is stuck in closed position.
44

During maintenance work in the engine room or on deck it is often necessary to work aloft (work at a height above the plates or the deck). When working aloft onboard the ship what is the most important safety precaution that should be taken?

Your answer is correct:

Wear a safety harness securely attached to ship’s structure.
45

What is the emergency frequency of MF (Medium Frequency) radio?

Your answer is correct:

2 182 Hz.
46

What method shall be used when hauling survivors out of the sea (state of survivors is critical)?

Your answer is correct:

Using nets.
47

An engine room rating is assisting in the maintenance of some of the valves on the low pressure steam range. Which packing material, from the options given, would be the best choice for repacking the gland of a low pressure steam valve?

Correct answer:

Graphite fibre packing.

Your Answer:

PTFE rope packing.
48

A seawater pipe is holed due to corrosion causing frequent bilge alarms. Which of the given temporary repair methods would be the preferred option to remedy the problem until the pipe can be replaced?

Your answer is correct:

Cover the hole with rubber insertion held in place with a jubilee clip.
49

The bones in the human body are connected to each other by:

Your answer is correct:

Different type of joints.
50

Is there any special area where it is forbidden to pump out any sludge or oil residues?

Correct answer:

There are 8 special area where it is forbidden to pump out any sludge or oil residues.

Your Answer:

There are 4 special area the Baltic, Mediterranean, Red sea and Black sea where it is forbidden to pump out any sludge or oil residues.
51

What is the correct name of the equipment shown in the sketch?

Your answer is correct:

Pedestal drill.
52

What do you call the method used for bone-soft part injuries?

Your answer is correct:

ICE-method.
53

The purpose of having corrugations in the bulkheads of cargo tanks of an oil tanker is to:

Correct answer:

Provide strength, but with clean and clear surfaces within the tank.

Your Answer:

Reduce the effects of Free Surface within the vessel.
54

What is the most suitable type of packing for a shaft gland of a pump used for seawater duties?

Correct answer:

Greasy cotton packing.

Your Answer:

Lead covered hemp packing.
55

The ship is involved in a collision, what is the immediate action by the Officer of the Watch after the incident has taken place?

Correct answer:

Sound the General Alarm and stop engines.

Your Answer:

Call the Master and check the position for any immediate dangers.
56

What kind of measure is the division of the vessel in upright areas by using thermic and structural separations?

Your answer is correct:

It is both a prevention and protection measure.
57

During maintenance of a pneumatically operated, diaphragm actuated control valve the diaphragm is found to be split. Select, from the options given, a suitable material to use to make a temporary replacement if there is no spare diaphragm available.

Your answer is correct:

Natural rubber sheet of approximately the same thickness and elasticity as the original diaphragm material.
58

The small amounts of cargo found in the cargo tanks before loading is referred to as OBQ, which means:

Your answer is correct:

OBQ (On Board Quantity).
59

What action should be taken if it is noticed that there is a quantity of oil on the engine room tank top?

Your answer is correct:

Notify the duty engineer and try and find the cause of the leakage so that it can be stopped and the oil cleaned up.
60

Water is the extinguishing agent which is the most widely employed and its action as an extinguishing agent is due to a combination of the following phenomena:

Your answer is correct:

Cooling, inhibition and dispersion.
61

What is the disadvantage of using chemicals on an oil-spill on the water?

Correct answer:

The chemicals make it difficult to remove the oil from the water.

Your Answer:

It is difficult to apply chemicals if there is any wind.
62

What types of fire extinguishers shall be used in the engine room?

Your answer is correct:

Fire extinguishers equipped for powder or CO2 only.
63

What is the correct understanding of the term “Lapse Rate” when used in Meteorology?

Your answer is correct:

The change of the temperature in the atmosphere with height above sea level.
64

A detector that is activated by a rise of temperature is:

Your answer is correct:

A thermic detector.
65

How much liferaft capacity should be provided on a conventional cargo ship of more than 85 meters in length?

Correct answer:

100 % of the complement if it can be readily launched on either side of the ship. If it cannot be readily launched on either side, 100 % must be provided on each side.

Your Answer:

50 % of the complement on each side of the ship.
66

What would be the most probable cause of the exhaust gas temperature from one cylinder of a diesel engine being lower than normal?

Your answer is correct:

The opening pressure for the injection valve for the cylinder is set too high.
67

What is the main difference between a stuffing box gland and a mechanical seal on a centrifugal pump?

Correct answer:

If packing fails the pump can be kept running by tightening the glands, but if a mechanical seal fails it must be renewed to stop the leakage.

Your Answer:

Packed stuffing box glands are subject to wear but mechanical seals are not.
68

An engine room rating is assisting the duty engineer during a period of UMS operation. After completing the tasks they have been busy with the engineer and rating leave the engine room which is returned to UMS mode. The rating realises that an oil tank filling valve has been left open. What action should be taken?

Your answer is correct:

Inform the duty engineer immediately so that the engine room can be re-entered and the valve can be shut.
69

What is the signal actuated by a fire detection system?

Your answer is correct:

A visual and audible alarm signal at the control panel.
70

High Voltage (HV) cables are smaller than low voltage cables for a given power rating. Why is this?

Correct answer:

The HV cable carries a smaller current and therefore requires less copper.

Your Answer:

The HV cable has a thinner wall of special insulation material.
71

An electric motor is to be aligned to a pump by insuring shims under the motor feet. Which of the tools given in the options would be used to check that the alignment is correct by measurement of the gap between the coupling faces?

Your answer is correct:

A set of feeler gauges.
72

During inspection of a high pressure fuel pump for a medium speed diesel engine it is observed that the upper leading edge and the lower helical edge of the pump plunger have suffered from erosion damage. Select the correct action to take to remedy this from the options given.

Correct answer:

Renew the plunger and barrel insert as a pair.

Your Answer:

Replace the complete pump with a new or reconditioned spare.
73

What is the “International shore connection” used for?

Your answer is correct:

To connect the ship fire main to the shore lines.
74

In a refrigeration system what is the most likely cause of the compressor suction pressure being too law and causing the compressor to short cycle?

Your answer is correct:

System undercharged with refrigerant.
75

The following information must be given on the SART:

Correct answer:

Date of replacement of the batteries.

Your Answer:

The date of replacement of the hydrostatic release unit.
76

When shutting down the flue gas plant, the last step that the operator shall carry out would be to:

Correct answer:

Shut down of inert gas blower.

Your Answer:

Open ventilation valve to atmosphere.
77

What kind of permits have to be obtained before starting hot work in tanks?

Your answer is correct:

Hot work permit + Permit for entry.
78

Is it necessary to cool the samples taken from a diesel engine cooling water system before carrying out tests to determine the concentration of treatment chemicals?

Your answer is correct:

Yes, the samples should be cooled to approximately 25 °C.
79

The examples of Aromatic Hydrocarbons will include:

Your answer is correct:

Benzene, Toluene and Xylene.
80

Shipboard Emergency Drills must be carried out at least (OPA-90):

Your answer is correct:

Once a month.
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