Test online for seafarers working in Engine Room (Operational, Medium Speed) (CES v6.0)
Test results
The test consisted of 80 random questions.
Total questions on this topic: 120
Total questions on this topic: 120
Your result: 100%
Right answers:
1
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.2
When shutting down the flue gas plant, the last step that the operator shall carry out would be to:
Your answer is correct:
Shut down of inert gas blower.3
What term is used to describe a fresh water cooling system which contains a seawater cooled common freshwater cooler and which meets the cooling requirements for all the engine room machinery?
Your answer is correct:
A central cooling system.4
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.5
What is the main difference between a stuffing box gland and a mechanical seal on a centrifugal pump?
Your answer is correct:
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.6
What is the disadvantage of using chemicals on an oil-spill on the water?
Your answer is correct:
The chemicals make it difficult to remove the oil from the water.7
What kind of permits have to be obtained before starting hot work in tanks?
Your answer is correct:
Hot work permit + Permit for entry.8
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.9
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.10
A small electric motor needs to be taken to the bottom plates for fitting to a domestic water pump. It is only just too heavy to be manually carried so is to be lowered using the engine room crane. Which of the options given would be a suitable strop to use for the operation?
Your answer is correct:
Any certified strop which has a safe working load greater than the weight of the motor.11
The normal carbon content of Crude Oil is in the range of:
Your answer is correct:
83-87 %.12
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.13
The responsibility for safety and security rests with everybody on board the vessel. General house-keeping rules should be followed. Which of the listed rules is the most important?
Your answer is correct:
Keep your working area clean and tidy.14
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.15
How many rocket parachute flares are carried in each liferaft with SOLAS B pack?
Your answer is correct:
2.16
Which one of the listed requirements regarding the stowage of a survival craft corresponds to present SOLAS regulations? Each survival craft shall be stowed:
Your answer is correct:
In a secure and sheltered position and protected from damage by fire or explosion.17
While getting tools ready and preparing for overhaul work on the main engine the engine room rating notices that the electrical extension is damaged. A small section of the cables outer insulation is split although the inner insulation appears ok. What action should the rating take?
Your answer is correct:
Label the damaged extension as unfit for use and return it to the store for testing and get a replacement extension.18
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.19
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.20
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?
Your answer is correct:
Graphite fibre packing.21
The bones in the human body are connected to each other by:
Your answer is correct:
Different type of joints.22
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.23
With reference to the efficiency of cargo pumps on oil tankers, the abbreviation NPSH stands for:
Your answer is correct:
Net Pressure Suction Head.24
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.25
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.26
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.
Your answer is correct:
Renew the plunger and barrel insert as a pair.27
On a fire patrol at night you see smoke coming from a closed cabin door. What action should you take first?
Your answer is correct:
Activate the nearest fire alarm button and advise bridge of the location of the fire.28
When shutting down the flue gas plant, the last step that the operator shall carry out would be to:
Your answer is correct:
Shut down of inert gas blower.29
What will a cadet find in the maintenance manual?
Your answer is correct:
A cadet will find a lubricating chart in the maintenance manual.30
What is the first thing that should be checked when taking over a boiler watch?
Your answer is correct:
The boiler water level.31
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.32
What is the correct name of the part highlighted in the sketch?
Your answer is correct:
Fuel injector.33
The following information must be given on the SART:
Your answer is correct:
Date of replacement of the batteries.34
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.35
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.36
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.37
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.38
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.39
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.40
What is the correct name of the equipment shown in the sketch?
Your answer is correct:
Pedestal drill.41
Which of the following areas may be possible restricted areas? Review all answers.
Your answer is correct:
All alternatives.42
What should be the first action to be taken in the event of the water level disappearing out of the boiler water level gauge glass?
Your answer is correct:
Secure all of the burners.43
What term is used to describe a fresh water cooling system which contains a seawater cooled common freshwater cooler and which meets the cooling requirements for all the engine room machinery?
Your answer is correct:
A central cooling system.44
When operating a propulsion installation consisting of medium speed diesel engines driving a controllable pitch propeller it is possible to operate the combination of engine speed and propeller pitch in a number of different ways. What would be the main reason for operating with constant speed and variable pitch?
Your answer is correct:
To allow constant speed operation of a shaft generator while the engine load changes with pitch variation.45
While assisting the watchkeeper with routine cleaning of the fuel oil separator the watch rating is requested to clean the plate stack. Which of the options given is the preferred method for such a task?
Your answer is correct:
Soak the plates in a suitable solvent until all of the dirt has loosened off and wipe clean with rags.46
A detector that is activated by a rise of temperature is:
Your answer is correct:
A thermic detector.47
An airway should be used when:
Your answer is correct:
The patient has stopped breathing.48
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?
Your answer is correct:
G = I/R.49
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?
Your answer is correct:
Graphite fibre packing.50
Where would you find out which fire sections are enclosed by “A” or “B” class divisions on a ship?
Your answer is correct:
On the ship’s fire control plans.51
What do you call the method used for bone-soft part injuries?
Your answer is correct:
ICE-method.52
How much liferaft capacity should be provided on a conventional cargo ship of more than 85 meters in length?
Your answer is correct:
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.53
The insulation resistance (IR) to earth of a new galley hot-plate is measured to be 30 Mohm. When three identical hot-plates on the same supply are tested together their combined IR will be:
Your answer is correct:
10 Mohm.54
An engine room rating notices that the guard on a running pump is hanging loose due to a missing bolt on the support bracket and it is catching the shaft coupling. What is the best action to take as a repair method?
Your answer is correct:
Inform the watchkeeper so that the pump can be stopped and a new bolt can be fitted to permanently fix the guard in place.55
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.56
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.57
What is the minimum number of channels required for the portable two-way VHF’s for survival craft?
Your answer is correct:
Channels 6, 13 & 16.58
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.59
High Voltage (HV) cables are smaller than low voltage cables for a given power rating. Why is this?
Your answer is correct:
The HV cable carries a smaller current and therefore requires less copper.60
During cargo or bunker operations, oil response equipment is to be:
Your answer is correct:
Ready for immediate use.61
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.62
Give the meaning of the following symbol:
Your answer is correct:
Child’s lifejacket.63
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.64
How many thermal protective aids are carried in each liferaft?
Your answer is correct:
The number of persons the liferaft is permitted to accommodate.65
What types of fire extinguishers shall be used in the engine room?
Your answer is correct:
Fire extinguishers equipped for powder or CO2 only.66
What is the capacity of the required portable fluid extinguishers?
Your answer is correct:
Not more than 13,5 litres and not less than 9 litres.67
For how long should the self contained air support system on a totally enclosed lifeboat having its engine running be capable of providing safe and breathable air?
Your answer is correct:
10 minutes.68
The examples of Aromatic Hydrocarbons will include:
Your answer is correct:
Benzene, Toluene and Xylene.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
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.71
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.72
Which cleaning agents are suitable for use in machinery space when considering the effect on the function of the oily water separator?
Your answer is correct:
Only non-emulsifying cleaning agents with self-splitting emulsifiers are suitable.73
What method shall be used when hauling survivors out of the sea (state of survivors is critical)?
Your answer is correct:
Using nets.74
With reference to the efficiency of cargo pumps on oil tankers, the abbreviation NPSH stands for:
Your answer is correct:
Net Pressure Suction Head.75
What would you do if you are told to operate a piece of mechanical equipment which you are not familiar with?
Your answer is correct:
Seek advice from your superior before attempting to operate it.76
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.77
Where does the excess steam discharge to when the boiler safety valves operate due to the boiler pressure being too high?
Your answer is correct:
The atmosphere via the atmospheric line.78
What type of fire integrity must be provided for an engine control room?
Your answer is correct:
A 60.79
What is the “International shore connection” used for?
Your answer is correct:
To connect the ship fire main to the shore lines.80