Engine

(1)

Wrong answer summary

Question asked (8):

What is the main purpose of a heat exchanger in a cooling water system?

Don't know

Selected answer: Correct answer:

To transfer heat from one fluid to another

What type of heat exchanger is shown in the illustration?

Don't know

Selected answer:

Correct answer:

Plate

Why did the Second Engineer wish to make a monthly allotment?

Don't know

The Second Engineer wished to make an allotment because he was married

What is the normal maximum oil content permitted for machinery space bilge overboard discharge via OWS equipment?

Don't know

Correct answer:

15 ppm

What would you do if you are told to operate a piece of mechanical equipment which you are not familiar with?

Don't know

Correct answer:

Seek advice from your superior before attempting to operate it.

Installation: CES version: CES 5.0.4646

Name: Test date: 24.10.2012

User ID: 115 Test type: STCW

Date of birth: 18.04.1994 Department: Engine

Nationality: Philippines Level: Support

Academy: PMI Vessel type/Propulsion:

Batch:

(2)

Wrong answer summary

Why is it important that the combustion chamber of a boiler is properly ventilated prior to ignition?

Don't know

Correct answer:

To avoid an explosion in case any oil vapours are present from oil leakage into the furnace.

What is the inherent danger in welding/cutting in piping containing freon?

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Correct answer:

Development of nitrous gases?

Which statement is true in relation to the operating parameters for a marine diesel engine?

Don't know

The normal temperature of the lub oil after the cooler is approximately 45 C.

What is the term used to refer to the valve that prevents backflow of water from the boiler to the feed water system?

Don't know

Correct answer:

Feed-check valve

What action should be taken before carrying out a bottom blowdown on a steam boiler?

Don't know

Raise the water level a few centimeters above normal working level.

How can water hammer be avoided when operating the valves and pumps in a cooling water system?

Don't know

(3)

Wrong answer summary

What would be the likely cause if the shaft of a centrifugal pump shows excessive wear in way of the stuffing box?

Don't know

Correct answer:

Over tightening of the gland packing.

Why are zinc anodes sometimes fitted in the seawater side of heat exchangers?

Don't know

To protect against corrosion

What will a cadet find in the maintenance manual?

Don't know

Correct answer:

A Cadet will find a lubricating chart in the maintenance manual

What will happen when the ship arrives in Rotterdam?

Don't know

The ship will receive fuel and diesel oil bunkers when it arrives in Rotterdam

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

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Correct answer:

The correct name of the tool shown in the sketch is: Adjustable wrench

What is a hydrostatic release unit?

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Correct answer:

(4)

Wrong answer summary

What kind of safety equipment should be used when operating a grinding wheel?

Don't know

Correct answer:

Goggles and shield.

What is the correct lifting technique?

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Correct answer:

Legs bent, back straight, using leg muscles to lift

Whilst in the Engine room you hear the CO2 release alarm, what action if any should you take.

Don't know

Correct answer:

Leave the engine room as quickly as possible, closing all doors behind you.

What is the most likely cause of the boiler exhaust gas being white in colour leaving the funnel?

Don't know

Too much combustion air.

Which of the given options best completes the following statement? You should never attempt to light a boiler until……….

Don't know

Correct answer:

… the furnace purge sequence is completed.

The aim of fire detection is:

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Correct answer:

(5)

Wrong answer summary

Which one of the following appliances is allowed to burn an oil fuel, the flash point of which may be a little bit lower than the one used for the main *engine?

Don't know

Correct answer:

The emergency generators

What is the name given to a devastating explosion that may occur when a rigid container containing a liquefied gas is exposed to a very high *temperature?

Don't know

Correct answer:

BLEVE

The main risk for people when using CO2 as an extinguishing agent in a closed space is:

Don't know

Correct answer:

Air suppression

Give the meaning of the following symbol

Don't know

Fire main with fire valves

Give the meaning of the following symbol

Don't know

Correct answer:

Fire station

A person wearing a thermal protective aid shall be able:

Don't know

(6)

Wrong answer summary

*Which part of the fresh water quantity provided for each person the liferaft is permitted to accommodate may be replaced by a de-salting apparatus?

Don't know

Correct answer:

0,5 l if the de-salting apparatus is capable of producing this quantity in 2 day

Which of air and water is the fluid that transfers the greatest amount of heat during the same time, given that the fluid is not flowing along the immersed body?

Don't know

Correct answer:

Water

When mustered to an abandon ship drill, what is the first thing you do when entering the muster station?

Don't know

Put on a life jacket

the minimum number of lifebuoys required on a cargo ship depends on:

Don't know

Correct answer:

the length of the ship

What method shall be used when hauling survivors out of the sea (state of survivors is critical)? Don't know Selected answer: Correct answer: Using nets Question asked (31546):

Which routine procedures should be carried out before cold work commences?

Don't know

Correct answer:

Carry out procedures to instructions for cold work including filling in forms and having them signed.

(7)

Wrong answer summary

Identify this symbol:

Don't know

Correct answer:

Emergency generator?

Which statement about IED’s is true?

Don't know

Correct answer:

All IED’s have four common components.

When handling drugs…

Don't know

Wear skin protection and a facemask.

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

Don't know

Correct answer:

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

When cleaning boiler burner nozzles that have just been in service the watch rating notices that the nozzle holes are partially blocked. Which of the methods given in the options is the preferred method to use in order to avoid damaging the nozzle holes?

Don't know

Use cleaning wires starting with a small gauge and gradually work up to the full size of the nozzle hole.

While on boiler watch on an automatically controlled steam boiler the rating notices that the burner has failed to light following a drop in steam pressure. What action should be taken?

Don't know

(8)

Wrong answer summary

After completion of a cleaning job on some machinery components at sea, the engine watch rating is instructed to dispose of a small amount of dirty diesel oil which is left in a bucket. How should the dirty oil be disposed of.

Don't know

Correct answer:

Put it straight into the dirty oil tank for incineration at the next opportunity.

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?

Don't know

Correct answer:

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

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?

Don't know

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.

During maintenance work at sea an engine room rating is moving a heavy component to the workshop using a chain block attached to an overhead trolley on a rail. Part way through the operation the rating is asked by the engineer to go immediately to the store for some equipment. What should the rating do?

Don't know

Correct answer:

Continue with the moving operation until the component is properly secured in the workshop before going to the store for the equipment.

It is important that tools are in good condition when they are being used for maintenance. Incorrectly sharpened tools can be dangerous. Which of the following tools can be safely sharpened using a pedestal grinder?

Don't know

Correct answer:

(9)

Wrong answer summary

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?

Don't know

Correct answer:

Inform the watchkeeper so that the pump can be stopped and a new bolt can be fitted to permanently fix the guard in place.

A pump cover is sealed using a paper gasket which is damaged during overhaul. There are no spare gaskets available. How should the casing be sealed when reassembling the pump?

Don't know

Make a new gasket from old chart paper or other similar material of the same thickness as the original gasket.

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?

Don't know

Correct answer:

Any certified strop which has a safe working load greater than the weight of the motor.

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?

Don't know

Correct answer:

Graphite fibre packing.

A spare cylinder head for the generator needs to be lifted from its storage cradle to the generator flat. Because of its location the engine room crane cannot be positioned directly above it. What method should be used to bring the cylinder head into position?

Don't know

Correct answer:

Rig chain blocks to lift the cylinder head from its cradle and then transfer it gradually over to the crane hook by working the chain blocks.

(10)

Wrong answer summary

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?

Don't know

Correct answer:

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

A bilge strainer is blocking up during bilge pumping operations which is causing delays as the pump frequently loses suction and has to be primed. What action should be taken to remedy the situation?

Don't know

Correct answer:

Clean the strainer more frequently and clean out the bilge well at the first opportunity.

A threaded hole is to be formed in a steel plate using a tap and wrench. When drilling the hole which of the options best describes the required drill size?

Don't know

Correct answer:

The drill should be a smaller size than the diameter of the tap.

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?

Don't know

A set of feeler gauges.

Where is the "PORT QUARTER", in the figure?

Don't know

Correct answer:

The Port quarter is D, in the figure

Is it always possible to use the word "ship" instead of the word "boat"?

Don't know

(11)

Wrong answer summary

Correct answer:

Normally a small vessel is called a "boat" rather than a "ship", otherwise it is not important.

Which is the "STARBOARD QUARTER", in the figure?

Don't know

The Starboard quarter is C, in the figure

What is shown in the picture, a crane or a derrick using what loading gear?

Don't know

Correct answer:

A deck crane using grabs.

An airway should be used when

Don't know

The patient is breathing on his own but is doing so with great difficulty

You must not attempt to move a casualty carelessly, if you suspect patient with:

Don't know

Correct answer:

Fractured spine

Which statement about the garbage record book is true?

Don't know

Correct answer:

It is used to record all operational and accidental garbage discharges

When is it good practice to check the pressure-vacuum valves?

Don't know

Correct answer: