Wrong answer summary

Wrong answer summary

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Question asked (8):What is the main purpose of a heat exchanger in a cooling water system?

Don't knowSelected answer:Correct answer:To transfer heat from one fluid to another

Question asked (9):What type of heat exchanger is shown in the illustration?

Don't knowSelected answer:Correct answer:Plate

Question asked (612):Why did the Second Engineer wish to make a monthly allotment?

Don't knowSelected answer:Correct answer:The Second Engineer wished to make an allotment because he was married

Question asked (1406):What is the normal maximum oil content permitted for machinery space bilge overboard discharge via OWS equipment?

Don't knowSelected answer:Correct answer:15 ppm

Question asked (1502):What would you do if you are told to operate a piece of mechanical equipment which you are not familiar with?

Don't knowSelected answer:Correct answer:Seek advice from your superior before attempting to operate it.

Installation: CES version: CES 5.0.4646Name: Test date: 24.10.2012User ID: 115 Test type: STCWDate of birth: 18.04.1994 Department: EngineNationality: Philippines Level: SupportAcademy: PMI Vessel type/Propulsion:Batch:Show only wrong answers with negative score: No


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Question asked (1734):Why is it important that the combustion chamber of a boiler is properly ventilated prior to ignition?

Don't knowSelected answer:Correct answer:To avoid an explosion in case any oil vapours are present from oil leakage into the furnace.

Question asked (2013):What is the inherent danger in welding/cutting in piping containing freon?

Don't knowSelected answer:Correct answer:Development of nitrous gases?

Question asked (2757):Which statement is true in relation to the operating parameters for a marine diesel engine?

Don't knowSelected answer:Correct answer:The normal temperature of the lub oil after the cooler is approximately 45 C.

Question asked (2807):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 knowSelected answer:Correct answer:Feed-check valve

Question asked (2820):What action should be taken before carrying out a bottom blowdown on a steam boiler?

Don't knowSelected answer:Correct answer:Raise the water level a few centimeters above normal working level.

Question asked (2841):How can water hammer be avoided when operating the valves and pumps in a cooling water system?

Don't knowSelected answer:Correct answer:Operate valves slowly


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Question asked (3138):What would be the likely cause if the shaft of a centrifugal pump shows excessive wear in way of the stuffing box?

Don't knowSelected answer:Correct answer:Over tightening of the gland packing.

Question asked (3151):Why are zinc anodes sometimes fitted in the seawater side of heat exchangers?

Don't knowSelected answer:Correct answer:To protect against corrosion

Question asked (3544):What will a cadet find in the maintenance manual?

Don't knowSelected answer:Correct answer:A Cadet will find a lubricating chart in the maintenance manual

Question asked (3548):What will happen when the ship arrives in Rotterdam?

Don't knowSelected answer:Correct answer:The ship will receive fuel and diesel oil bunkers when it arrives in Rotterdam

Question asked (3566):What is the correct name of the tool shown in the sketch?

Don't knowSelected answer:Correct answer:The correct name of the tool shown in the sketch is: Adjustable wrench

Question asked (3713):What is a hydrostatic release unit?

Don't knowSelected answer:Correct answer:A unit which automatically releases the liferaft/lifeboat at a depth of approx 4 metres.


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Question asked (3742):What kind of safety equipment should be used when operating a grinding wheel?

Don't knowSelected answer:Correct answer:Goggles and shield.

Question asked (3744):What is the correct lifting technique?

Don't knowSelected answer:Correct answer:Legs bent, back straight, using leg muscles to lift

Question asked (3756):Whilst in the Engine room you hear the CO2 release alarm, what action if any should you take.

Don't knowSelected answer:Correct answer:Leave the engine room as quickly as possible, closing all doors behind you.

Question asked (3809):What is the most likely cause of the boiler exhaust gas being white in colour leaving the funnel?

Don't knowSelected answer:Correct answer:Too much combustion air.

Question asked (3816):Which of the given options best completes the following statement? You should never attempt to light a boiler until………………….

Don't knowSelected answer:Correct answer:… the furnace purge sequence is completed.

Question asked (10050):The aim of fire detection is:

Don't knowSelected answer:Correct answer:All the answers are correct


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Question asked (10130):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 knowSelected answer:Correct answer:The emergency generators

Question asked (10136):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 knowSelected answer:Correct answer:BLEVE

Question asked (10316):The main risk for people when using CO2 as an extinguishing agent in a closed space is:

Don't knowSelected answer:Correct answer:Air suppression

Question asked (10507):Give the meaning of the following symbol

Don't knowSelected answer:Correct answer: Fire main with fire valves

Question asked (10516):Give the meaning of the following symbol

Don't knowSelected answer:Correct answer: Fire station

Question asked (20241):A person wearing a thermal protective aid shall be able:

Don't knowSelected answer:Correct answer:to wear a lifejacket inside


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Question asked (20308):*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 knowSelected answer:Correct answer:0,5 l if the de-salting apparatus is capable of producing this quantity in 2 day

Question asked (20313):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 knowSelected answer:Correct answer:Water

Question asked (20371):When mustered to an abandon ship drill, what is the first thing you do when entering the muster station?

Don't knowSelected answer:Correct answer:Put on a life jacket

Question asked (20443):the minimum number of lifebuoys required on a cargo ship depends on:

Don't knowSelected answer:Correct answer:the length of the ship

Question asked (31487):What method shall be used when hauling survivors out of the sea (state of survivors is critical)?

Don't knowSelected answer:Correct answer:Using nets

Question asked (31546):Which routine procedures should be carried out before cold work commences?

Don't knowSelected answer:Correct answer:Carry out procedures to instructions for cold work including filling in forms and having them signed.


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Question asked (31570):Identify this symbol:

Don't knowSelected answer:Correct answer:Emergency generator?

Question asked (32124):Which statement about IED’s is true?

Don't knowSelected answer:Correct answer:All IED’s have four common components.

Question asked (32147):When handling drugs…

Don't knowSelected answer:Correct answer:Wear skin protection and a facemask.

Question asked (32355):Why should boiler sootblowers normally only be operated in the correct sequence?

Don't knowSelected answer:Correct answer:To ensure soot is cleared progressively from the bottom tubes to the top and toward the boiler uptakes.

Question asked (32426):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 knowSelected answer:Correct answer:Use cleaning wires starting with a small gauge and gradually work up to the full size of the nozzle hole.

Question asked (32517):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 knowSelected answer:Correct answer:Call the duty engineer immediately using the engineers call alarm.


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Question asked (32520):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 knowSelected answer:Correct answer:Put it straight into the dirty oil tank for incineration at the next opportunity.

Question asked (32521):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 knowSelected answer:Correct answer:Inform the duty engineer immediately so that the engine room can be re-entered and the valve can be shut.

Question asked (32523):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 knowSelected answer:Correct answer: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.

Question asked (32575):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 knowSelected answer:Correct answer:Continue with the moving operation until the component is properly secured in the workshop before going to the store for the equipment.

Question asked (32607):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 knowSelected answer:Correct answer:Steel drill bit.


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Question asked (32608):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 knowSelected answer: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.

Question asked (32609):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 knowSelected answer:Correct answer:Make a new gasket from old chart paper or other similar material of the same thickness as the original gasket.

Question asked (32611):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 knowSelected answer:Correct answer:Any certified strop which has a safe working load greater than the weight of the motor.

Question asked (32614):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 knowSelected answer:Correct answer:Graphite fibre packing.

Question asked (32617):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 knowSelected answer: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.


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Question asked (32620):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 knowSelected answer:Correct answer:Make a new brass plug on the lathe to fit the drain hole.

Question asked (32624):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 knowSelected answer:Correct answer:Clean the strainer more frequently and clean out the bilge well at the first opportunity.

Question asked (33068):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 knowSelected answer:Correct answer:The drill should be a smaller size than the diameter of the tap.

Question asked (33070):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 knowSelected answer:Correct answer:A set of feeler gauges.

Question asked (33725):Where is the "PORT QUARTER", in the figure?

Don't knowSelected answer:Correct answer:The Port quarter is D, in the figure

Question asked (33729):Is it always possible to use the word "ship" instead of the word "boat"?

Don't knowSelected answer:


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

Question asked (33732):Which is the "STARBOARD QUARTER", in the figure?

Don't knowSelected answer:Correct answer:The Starboard quarter is C, in the figure

Question asked (33754):What is shown in the picture, a crane or a derrick using what loading gear?

Don't knowSelected answer:Correct answer:A deck crane using grabs.

Question asked (33876):An airway should be used when

Don't knowSelected answer:Correct answer:The patient is breathing on his own but is doing so with great difficulty

Question asked (33879):You must not attempt to move a casualty carelessly, if you suspect patient with:

Don't knowSelected answer:Correct answer:Fractured spine

Question asked (33885):Which statement about the garbage record book is true?

Don't knowSelected answer:Correct answer:It is used to record all operational and accidental garbage discharges

Question asked (33891):When is it good practice to check the pressure-vacuum valves?

Don't knowSelected answer:Correct answer:Prior to cargo transfer

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