Тест складається із 80 випадкових питань.
Усього питань на цю тему: 120
Which of the methods given in the options should be used to test a remote reading temperature gauge for the auxiliary boiler exhaust gas?
Check the resistance change in the sensor over a known temperature range against the resistance values in the product sheet.
Fit a spare temperature gauge and see if the reading are the same.
Place the sensor in a test tank of water fitted with a heater element and thermometer and check the temperature gauge at different temperatures.
Place the sensor in a test tank of oil fitted with a heater element and thermometer and check the temperature gauge at different temperatures.
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?
An inside vernier calliper.
An engine room rating is given the task of retightening the flanges of a pipe that has been replaced in the engine room. Which of the following tightening procedures should be followed?
Gradually tighten all of the bolts working diagonally across and around the flange.
Start with the top bolt and fully tighten each in turn moving clockwise around the flange.
Start with the bottom bolt and partially tighten each bolt in turn working counter clockwise around the flange. Repeat to fully tighten.
Fully tighten each bolt in turn and work diagonally across and around the flanges.
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?
A high temperature freshwater system.
A low temperature freshwater system.
A central cooling system.
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?
When you are working with power tools or chemicals.
When you are filling in the engine room log book.
When you are tidying up in the engine room workshop.
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?
No, the samples should be heated to approximately 95 °C.
Yes, the samples should be cooled to approximately 25 °C.
Yes, the samples should be cooled to approximately 50 °C.
No, the test should be carried out at system temperature.
What is the main purpose for taking diesel engine crankshaft deflections?
To allow calculation of the load on each of the bearings.
To check for weardown of the bottom end bearings.
To check that the shafting is in a straight line.
To check for weardown of the main bearings.
What types of fire extinguishers shall be used in the engine room?
Fire extinguishers of the handy-size types only.
Fire extinguishers filled with fresh water only.
Fire extinguishers equipped for powder or CO2 only.
Any fire extinguisher with a weight of less than 100 lbs.
What is the correct name of the part highlighted in the sketch?
Cylinder air start valve.
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?
Wear a safety harness securely attached to ship’s structure.
Wear a safety helmet and goggles.
Lash the bottom of the ladder to a fixed point.
Keep all the tools required for the work in a bucket.
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?
A high temperature freshwater system.
A central cooling system.
A low temperature freshwater system.
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?
Cut off the end of the cable including the damaged section and refit the plug to the end of the remaining cable before using the extension.
Label the damaged extension as unfit for use and return it to the store for testing and get a replacement extension.
Carry on using the extension after wrapping insulation tape over the damaged section as it is only minor damage.
Just use the extension as it is since the damage is only to the outer insulation and the inner insulation appears ok.
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?
Go to your lifeboat station.
Go to (or remain in) your cabin and await further orders.
Report on the bridge (deck crew) or engine room (engine crew) for further orders.
Where does the excess steam discharge to when the boiler safety valves operate due to the boiler pressure being too high?
The atmosphere via the atmospheric line.
As per international regulations, the minimum inert gas pressure required to be maintained in slop tanks if slops are retained on board is:
What is the emergency channel on VHF?
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.
Natural rubber sheet of approximately the same thickness and elasticity as the original diaphragm material.
Cotton reinforced rubber insertion sheet of smaller thickness but similar strength as the original diaphragm material.
Natural rubber sheet of greater thickness and lower elasticity as the original diaphragm material.
Cotton reinforced rubber insertion sheet of approximately the same thickness but less elasticity than the original diaphragm material.
What is the minimum number of channels required for the portable two-way VHF’s for survival craft?
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?
It can be adjusted to the exact size of the nut.
It will allow the nuts to be tightened correctly.
The nuts can be tightened more with this type of spanner.
It will minimise the risk of slipping off the nut or damaging the nuts.
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?
To allow the engine to be operated with a load sensing governor instead of a speed sensing governor.
To allow rapid load change and thrust reversal when manoeuvring.
To obtain maximum propeller efficiency over the load range of the engine.
To allow constant speed operation of a shaft generator while the engine load changes with pitch variation.
Unfortunately an insect has become lodged in the ear. How to remove the insect?
By using rubber vacuum pump and suck the foreign body out.
Hold one hand across your nose and blow hard. Since the nose-channel is closed, the air will escape through the ears instead. And so will the foreign body.
Gently flood the casualty’s ear with terpid water so that the insect will float out.
By using a Q-tip and carefully try to get the insect out.
What is the capacity of the required portable fluid extinguishers?
Not more than 20 litres and not less than 12 litres.
Not more than 13,5 litres and not less than 9 litres.
The bones in the human body are connected to each other by:
Different type of joints.
Give the meaning of the following symbol:
Remote controlled fire pumps.
International shore connection.
The ship is involved in a collision, what is the immediate action by the Officer of the Watch after the incident has taken place?
Sound the General Alarm and stop engines.
Contact the other ship and send the bridge lookout down to start taking soundings.
Call the Master and check the position for any immediate dangers.
Stop engines and check over the side for any signs of pollution.
What is flashpoint of an oil or liquefied gas?
The flashpoint is the mixture of oxygen and hydro carbons needed to have an oil or liquefied gas to burn.
The flashpoint for an oil or liquefied gas is the temperature at which it is possible to ignite the vapour above the liquid.
The flashpoint is the temperature the oil or liquefied gas need for self ignition.
The flashpoint is the temperature needed to have a oil or liquefied gas pumpable.
Which one of the listed requirements regarding the stowage of a survival craft corresponds to present SOLAS regulations? Each survival craft shall be stowed:
In a secure and sheltered position and protected from damage by fire or explosion.
Wherever space is available.
In a state of readiness so that two crew-members can prepare for embarkation and launching in less than 15 minutes.
On the starboard side of the ship.
What kind of permits have to be obtained before starting hot work in tanks?
Hot work permit + Permit for entry.
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?
The area where the welding is to take place and adjacent spaces to be cleaned and all unnecessary materials and objects to be removed.
Only holders of a welding certificate should be allowed to carry out welding or burning on board ships.
Only use electrodes from a well known manufacturer.
Electric welding plants should be controlled by a responsible engineer before use.
What is meant by the term “segregation”?
The process of electronically transferring the data on cargoes loaded on a vessel between the load port and the discharge port, such that import documentation is prepared in advance of the vessel’s arrival.
The stowage of cargoes when calculated by a computerized load program.
The planned, separated stowage of cargoes that may react dangerously with each other in the event of leakage or other damage.
The planned adjacent stowage of packaged goods, thereby confining a listed hazard within the same area of the ship.
Why is it important that the combustion chamber of a boiler is properly ventilated prior to ignition?
To avoid an explosion in case any oil vapours are present from oil leakage into the furnace.
To ensure that there is sufficient air for proper combustion.
To remove any deposits from the furnace wall.
To cool the surfaces of the boiler furnace in case they give premature ignition of the burner.
What is the main difference between a stuffing box gland and a mechanical seal on a centrifugal pump?
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.
The sealing surface of a mechanical seal is usually parallel to the shaft, but sealing surface of a packed gland is perpendicular to the shaft.
Packed stuffing box glands are subject to wear but mechanical seals are not.
Packed stuffing box glands must be cooled by liquid, but mechanical seals do not require any cooling.
What is the best way to avoid pollution from small oil-spills aboard a ship?
Contain any oil-spill onboard the ship.
Rig an oil boom around the ship.
Have sawdust ready for use.
Have dispersing chemicals ready for use in case of oil-spill.
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?
Close the main steam stop valve.
Secure all of the burners.
Close the feed water stop valve.
High Voltage (HV) cables are smaller than low voltage cables for a given power rating. Why is this?
The HV cable carries a smaller current and therefore requires less copper.
The HV cable uses higher quality copper conductors and therefore requires them to be a smaller cross-sectional area.
The HV cable uses Aluminium conductors and therefore requires them to be a smaller cross-sectional area.
The HV cable has a thinner wall of special insulation material.
What would be the most probable cause of the exhaust gas temperature from one cylinder of a diesel engine being lower than normal?
The opening pressure for the injection valve for the cylinder is set too high.
There is air in the fuel oil system.
The camshaft chain is too slack.
The intake filter for turbo charger is partly fouled.
What kind of extinguishing-remedy would you choose to put out an electrical fire?
Combination of powder and water.
Dry extinguishing remedy.
In carbon dioxide fire-fighting systems for use in machinery spaces the fixed piping system shall be such that:
85 % of the gas can be discharged into the space within 2 minutes.
100 % of the gas can be discharged into the space within 2 minutes.
100 % of the gas can be discharged into the space within 3 minutes.
70 % of the gas can be discharged into the space within 1 minute.
How much liferaft capacity should be provided on a conventional cargo ship of more than 85 meters in length?
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.
50 % of the complement on each side of the ship.
75 % of the complement on each side of the ship.
25 % of the complement on each side of the ship.
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?
An inside vernier calliper.
With reference to the efficiency of cargo pumps on oil tankers, the abbreviation NPSH stands for:
Necessary Pumping Suction Hazard.
Natural Pumping Standard Height.
Nominal Pressure Suction Head.
Net Pressure Suction Head.
A detector that is activated by a rise of temperature is:
What is the most likely cause of black smoke at the boiler exhaust during normal operation of a steam boiler?
Insufficient combustion air.
Fuel oil temperature too high.
What special equipment can often provide assistance in locating a survival craft or man overboard and in the water?
A sectored search pattern.
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?
Call the engineer on watch.
Stop the feed water pump.
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:
Smothering and inhibition.
Cooling, smothering and dispersion.
Smothering and dispersion.
Cooling, inhibition and dispersion.
When shutting down the flue gas plant, the last step that the operator shall carry out would be to:
Close the deck isolating valve.
Open ventilation valve to atmosphere.
Close the gas pressure control valve.
Shut down of inert gas blower.
What is the “International shore connection” used for?
To connect the ship fire main to the shore lines.
To connect the cargo hoses to the shore.
To connect the bunker hoses to the shore.
To connect the ship fresh water hoses to the shore.
What do you call the method used for bone-soft part injuries?
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?
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?
Wait until the breathing apparatus warning whistle sounds.
15 minutes after starting to use the set as this leaves you with 5 minutes air left.
Wait for the appropriate signal on your safety line as the personnel outside will be keeping a track of the time you have spent inside.
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.
Which of the following disposal would be permitted?
Food waste from a vessel outside a special area and 12 miles from nearest land.
Paper products from a vessel inside a special area and 15 miles from the nearest land.
Food waste from a vessel outside a special area and 10 miles from the nearest land.
Food waste from a vessel inside a special area and 10 miles from nearest land.
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.
Renew only the plunger if the barrel appears undamaged.
Renew the plunger and barrel insert as a pair.
Smooth away the damaged area with a grinder and polishing stone and refit it.
Replace the complete pump with a new or reconditioned spare.
Shipboard Emergency Drills must be carried out at least (OPA-90):
Give the meaning of the following symbol:
Muster station for unaccompanied minors (UM).
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?
The area where the welding is to take place and adjacent spaces to be cleaned and all unnecessary materials and objects to be removed.
Only holders of a welding certificate should be allowed to carry out welding or burning on board ships.
Only use electrodes from a well known manufacturer.
Electric welding plants should be controlled by a responsible engineer before use.
The normal carbon content of Crude Oil is in the range of:
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?
Inform the duty engineer immediately so that the engine room can be re-entered and the valve can be shut.
Inform another crewmember that he is going back into the engine room to close the valve.
Just leave the valve open as it is unsafe to enter the engine room alone. The high alarm will sound to notify the engineer when the tank is full.
Re-enter the engine room straight away and shut the valve.
How many thermal protective aids are carried in each liferaft?
10 % of the number of persons the liferaft is designed to carry, or two, whichever is more.
The number of persons the liferaft is permitted to accommodate.
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?
Lead covered cotton packing.
Hot work is to be carried out close to a smoke detector in the engine room. What precautions should be taken?
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.
Disconnect or cover up the smoke detector.
No special precautions except for having a watch man and a fire extinguisher available.
Notify Deck Officer in charge that a fire alarm may occur.
During an oil cargo discharging operation, the IG supply to the tanks fails. As an OOW you would:
Continue discharging with the cargo pumps running at minimum speed, and inform the engine room.
Slow down and relieve the vacuum by opening the tanks lids and inform the Chief Officer.
Activate the inert fans and blow fresh air into the cargo tanks, and inform the terminal authority.
Immediately stop the discharging and inform the Chief Officer.
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?
After at least 20 minutes.
After at least 10 minutes.
After at least 5 minutes.
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?
System overcharged with refrigerant.
Insufficient cooling water flow through the condenser.
Expansion valve stuck open.
System undercharged with refrigerant.
When shutting down the flue gas plant, the last step that the operator shall carry out would be to:
Shut down of inert gas blower.
Close the gas pressure control valve.
Close the deck isolating valve.
Open ventilation valve to atmosphere.
Which cleaning agents are suitable for use in machinery space when considering the effect on the function of the oily water separator?
Only non-emulsifying cleaning agents with self-splitting emulsifiers are suitable.
None should be used as all cleaning agents affect the function of an OWS.
Any kind of cleaning agent is suitable.
An emulsification type cleaning agent is suitable.
If the flow of gas to shore reaches the maximum declared capacity whilst using the Vapour Emission Control System (VECS), the OOW should:
Say nothing and hope notices, so that loading is completed as soon as possible.
Reset the lifting pressure level on the Pressure/Vacuum valves to allow them to release more vapour to atmosphere.
Open the mast riser vents to relieve the excess pressure and bring the flow within the declared range.
Request the terminal to reduce the loading rate until the flow of gas to shore is controlled.
What method shall be used when hauling survivors out of the sea (state of survivors is critical)?
Which of these are indicators that an individual may be a drug smuggler?
The individual makes small local purchases.
The individual is disinterested in the ship’s cargo.
The individual wears bulky or out of season clothing.
The individual spends his or her free time hanging out with others.
The small amounts of cargo found in the cargo tanks before loading is referred to as OBQ, which means:
OPB (Observed Preliminary Volume).
TSV (Total Surveyed Volume).
ROB (Remaining On Board).
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?
Always use gloves when using grinding machines.
Keep tools within easy reach during work.
Keep your working area clean and tidy.
Do not carry lighters or matches when working outdoors.
What is the disadvantage of using chemicals on an oil-spill on the water?
The water gets a white colour, which makes it easy to detect the oil-spill.
It is difficult to apply chemicals if there is any wind.
The chemicals make it difficult to remove the oil from the water.
It is difficult to apply the chemicals if the oil drifts away from the ship’s side.
What is the correct understanding of the term “Lapse Rate” when used in Meteorology?
The rate of increase of the wind associated with a Tropical Revolving Storm.
The delay in temperature reduction associated with the wet bulb thermometer of a hygrometer.
The change in the temperature associated with the passing of the warm front of a frontal depression.
The change of the temperature in the atmosphere with height above sea level.
On a fire patrol at night you see smoke coming from a closed cabin door. What action should you take first?
Activate the nearest fire alarm button and advise bridge of the location of the fire.
Get the nearest fire extinguisher and then open the door to see what the situation is.
Take a look inside the cabin to see what the situation is.
As most people are sleeping, call a friend and ask him to assist in putting out the fire.
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?
Soak the dirty plates in a solvent for an hour and then stand them on the engine room deck to drain off.
Scrape the plates as clean as possible with a packing knife and then wash them with a high pressure water hose.
With the plate stack in position fill the purifier bowl with clean diesel oil and quickly switch it on and off to wash the plates.
Soak the plates in a suitable solvent until all of the dirt has loosened off and wipe clean with rags.
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?
Cover the hole with rubber insertion held in place with a jubilee clip.
Cover all of the affected area with fibre glass tape and resin/fibre.
Wrap duct tape around the pipe in way of the hole.
Drive a steel taper pin into the hole to seal it.
What could be the cause of a refrigeration compressor running continuously even though normal temperatures for the cold rooms have been reached?
Low-pressure cut-out is stuck in closed position.
The differential pressure switch for the lubricating oil pressure cut-out is stuck in the closed position.
High-pressure cut-out is stuck in open position.
Solenoid valve before the expansion valve stuck in closed position.
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?
Try and fit a new bolt while the pump is running to permanently fix the guard in place.
Inform the watchkeeper so that the pump can be stopped and a new bolt can be fitted to permanently fix the guard in place.
Fasten the guard back in place with a piece of rope with the pump running as a temporary repair.
Place a sheet of metal in front of the guard to deflect any parts that may fly off as a temporary repair.
An airway should be used when:
The patient has stopped breathing.
The patient is unconscious.
The patient is breathing on his own but is doing so with great difficulty.
Patient has injury in the mouth.
What signal, if any, is specified in SOLAS as the “Abandon ship” signal?
Six short blasts followed by one long blast.
The “Abandon ship” signal is not specified, only the general emergency alarm signal is stated.
Seven short blasts followed by one long blast.