How is a radio-telex traffic list transmitted:
Where several rescue units are engaged in a search and rescue operation, one of will be designated as the On-Scene Commander (OSC). Which of the following descibes how this appointment will be made?
The role of OSC can only be taken by a naval ship with suitable command and control capability. In many regions, such vessels are permanently assigned on stand-by to assume such a role.
The first rescue unit to arrive at the scene will normally assume the role of OSC, until the unit appointed as OSC by the RCC is in a poisition to assume the role.
The OSC will initially be a controlling aircraft. Once a suitable vessel is on scene, the responsibility will be passed to them.
The OSC will always be designated by the appropriate Rescue Coordination Centre. No other vessel may assume the role at any time.
How often must inspection of proper working of the EPIRB ‘s and SART ’s take place on board? Once per:
The terminal indicates to you that they are going to use a booster pump to assist the discharging operation. You start the discharge, and in a few minutes the pressure drops sharply. This could be a result of the :
booster pump being lined up in the wrong direction
booster pump failing to start
booster pump coming on the line and discharging properly
What corrections must be applied to the echo sounder reading to compare the depth of water with the depth printed on the chart?
The distance between the pulse Transmitter and Receiver
Allowance for the ships speed
What would be the correct definition of the term "Squat"?
Squat is the reduction of underkeel clearance due to increase of water flow under the keel and an increase in the water pressure
Squat is the reduction of underkeel clearance of a ship when it moves through shallow water due to a reduction in water pressure.
Squat is the loss of effectiveness of the rudder and propeller as a ship moves through shallow water due to the reduction of water pressure.
Squat is the reduction of underkeel clearance and the possible change of trim of a ship when it moves through shallow water due to a reduction in water pressure.
The engines are going astern and the ship is making sternway of about 1.5 knots with the rudder hard to starboard. What effect will this have on the ship's progress?
This will give the stern a lift force to port
There will be no lift force and the ship will go straight astern
This will give the stern a lift force to starboard
The rudder will have no effect when the ship is making sternway, it should be in the amidships position when going astern
*How much liferaft capacity should be provided on a conventional cargo ship of more than 85 meters in length.
75% of the complement on each side of the ship
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
25% of the complement on each side of the ship
Which one of the listed requirements regarding life-saving appliances corresponds to present regulations?
All prescribed life-saving appliances shall be made of non-combustible or fire retardant material
All prescribed life-saving appliances shall have marking in red colour
All prescribed life-saving appliances shall be of such a colour that they are in contrast to the surrounding colour
All prescribed life-saving appliances shall be fitted with the manufacturers name and Logo
If you are going aloft in a bosun's chair what kind of hook would you use to hook the chair to the rope?
I would refuse going aloft
A stainless steel butcher's hook that is designed to take the load
An approved hook with a locking device
If a seaman has to walk across a stow of cartons containing perishable foodstuffs what should he do to minimise the risk of damage to the contents? Select the most appropriate option from those given.
He should step on the middle of the cartons.
All parts of the carton are of equal strength and therefore it doesn't matter which part he steps on.
He should step on the edges of the cartons.
He should step on the corners of the cartons.
From the statements given in the answer options, choose the one which is most accurate in relation to the operation of water-tube boiler and fire-tube boilers.
A watertube boiler can tolerate a short period of time without any water when the burner is operating.
A firetube boiler has a much better capability to work at higher steam pressure.
Water-tube boilers are more efficient and generally contain less water than fire tube boilers. They are prone to major damage when run dry during operation.
A firetube boiler does not require a non-return valve in the feedwater line.
Most fruit cargoes carried under refrigeration require introduction of fresh air into the cargo space to remove any excess carbon dioxide and ethylene produced by respiration of the cargo and sensors are fitted to detect these gases. Shipper's instructions will often indicate 'constant air change' as a requirement for a cargo. Why, even though this is a crude method for controlling the cargo space atmosphere, is this type of instruction given?
Some cargoes are very sensitive to ethylene levels and it may be difficult to accurately measure the low levels that would affect a cargo.
It is the standard method and it is always done that way for simplicity.
Fresh air helps to acclimatise the cargo to the prevailing ambient conditions.
As much fresh air as possible should always be introduced into the cargo space throughout the voyage to maintain cargo quality.
Which equipment is utilised to control the liquid level in the cargo tanks?
In the cargo tanks we use deep stick to control the liquid level
In the cargo tanks we use sounding tape to control the liquid level
In the cargo tanks we use either float or radar type gauge to control the liquid level
In the cargo tanks we use float type gauge to control the liquid level
From the options given select the one which best completes the following statement. "The preferred method of handling pallets of fruit in the 'tween deck of a conventional reefer vessel would be…
…using a bio-ethanol powered fork lift truck."
…using a diesel powered fork lift truck."
…using carefully sited snatch blocks and strops."
…using a battery powered fork lift truck."
The IMO Gas Codes require that all liquefied gas carrier cargo tanks are fitted with pressure relief valves. Pilot operated relief valves are frequently used, particularly with refrigerated cargoes. What is the main advantage of using pilot operated relief valves rather than simple spring loaded types for refrigerated liquefied gas cargoes tanks?
The set pressure can be adjusted to above MARVS if problems occur with the reliquefaction plant.
When pilot operated valves are used only one valve per cargo tank is required irrespective of tank size.
They ensure accurate operation at the very low cargo carriage pressures.
They ensure accurate operation at the very low cargo carriage temperatures.
You are to carry a cargo of Phenol across the North Atlantic in winter time. What precaution will you take with the double bottom tank located under the cargo tank containing the Phenol?
It is not necessary to take any additional precautions with the double bottom tank because it is part of an entirely separate pumping system.
It should be continuously vented to avoid the build up of condensation on the structure around the product.
It should be empty, to avoid cold water contacted the structure around the product because Phenol has a relatively high melting point.
It should be inerted, because Phenol has a very low Flash Point.
What is the purpose of an oil mist detector, OMD, as fitted to a diesel engine?
To detect any potentially explosive atmosphere in the crankcase.
To detect stuffing box leakages.
To detect circulation of the engine lubricating oil.
To avoid hot spots in crankcase.
On the diagram provided, there are four (4) possible directions indicating the term "AHEAD". Which one is the correct?
Ahead is given by A on the figure
Ahead is given by D on the figure
Ahead is given by B on the figure
Ahead is given by C on the figure
For transporting a casualty with a fracture; If a Neil-Robertson stretcher is not available:
Wait for the Neil-Robertson strecher to arrive
A wide wooden board may be used
One person should lift the casualty using Fire-mans lift
Two persons should lift the casualty with great care
What would you suspect has happened if the lubricating oil for an air compressor has a milky white appearance?
Water contamination of the oil.
Wrong grade of oil has been used.
Oil temperature has been too high.
Air contamination of the oil.
If whistles are fitted on a vessel at a distance apart of more than 100 metres, will manoeuvring and warning signals, as defined by rule 34 of the International regulations for Preventing Collisions at Sea, be given on one or both whistles?
Manoeuvring signals will be given only on the forward whistle; warning signals will be given on both whistles simultaneously.
They shall be given on one whistle only.
They shall be given on both whistles simultaneously.
They shall first be given on the forward whistle, followed by the after whistle, with a 5 second inetrval in between.
Telephones are being used to communicate between personnel onboard and ashore during a bunkering operation. What instruction would you give to ship personnel regarding action to take in the event of failure of the telephone communication during the operation?
Use a crewmember as a messenger between personnel involved in the operation.
Slow down the bunkering rate until alternative reliable communications are established.
Stop the bunkering until alternative reliable communications are established
Call the electrician, and get him to repair the telephone while the bunkering operation continues.
Which IMO convention takes care of the human safety at sea?
It is the MARPOL that takes care of the human safety at sea.
There are not any conventions that take care of the human safety at sea.
It is the STCW that takes care of the human safety at sea.
It is the BCH Code that takes care of the human safety at sea.
Why is it necessary to control the rate at which iron ore is loaded on a Bulk Carrier?
So that any moisture within the cargo is removed
So that the vessels draughts are kept within the limits imposed by the stability booklet
So that the vessel can manage with de-ballasting operations
So that the athwartship hatch coaming structure is not stressed
What is important with regard to checking container lashings on deck?
The strength of lashing rods
The number and extent of lashings
The strength of twistlocks
The tightness of lashing rods and container locking arrangements
Before each cargo tank is crude oil washed (COW) the oxygen content must be determined at?
A point 1 metre below the deck and at a point 2 metres above the bottom..
A point 1 metre below the deck and at the middle level of the ullage space.
A point 2 metres below the deck and at the middle level of the ullage space.
What is important to wear for all officers and crew when working on the ro-ro deck during loading and discharging?
If the car decks are empty, it will be easier for the crew to locate all passengers in case of an emergency
In case of an emergency situation it can be difficult for passengers to escape. Vehicles, lorries, trailers and other cargo are maybe lashed and it is a substantial chance for passengers to get injured. Vehicles and other cargo might also shift when the ship is rolling.
To prevent burglary and damage to cars
Vehicles and other cargo can shift when the ship is rolling. Persons may be trapped between vehicles or cargo.
What do you understand by the term "Let Go" when applied to mooring and unmooring?
Let Go means to let seafarers go ashore
Let Go means to slacken a mooring rope
Let Go means to leave the ship
Let Go means to cast off the mooring ropes and wires
When ballasting operations are about to start on a bulk carrier, what important checks must be made?
That all air pipes are open and that the pipeline and valve system is correctly set up
That the vessel is even keel and upright
That the cargo operations are completed
That the hold bilge system has been cleaned and the access ladders checked
The Captain has complained about the catering department overtime and the amount of food being left over and wasted. The Cook suggests that he cooks a large amount of rice in one go, keeps it warm during service at the evening meal, places any left over in the refrigerator overnight and then re-heats it for the lunch-time meal it the next day. Is this acceptable practise? (Select the most correct answer).
Yes, it will minimise cooking time and cut down wastage. As the rice has not been mixed with any other ingredients, it will remain pure and fresh.
Yes, it will save overtime and cut down wastage. Being rice, it poses no health risk.
No, this is extremely dangerous and could lead to food poisoning throughout the whole crew.
Provided the rice is re-heated to a temperature of at least 37.8 degrees Celsius there will be no health risk. It is a practical approach to cutting down preparation time.
If a cargo is heated, which of the following happens?
Its weight does not change, but its volume increases - it expands.
Its volume does not change, but its weight decreases - it gets lighter.
Its weight does not change, but its volume decreases - it contracts.
Its volume does not change, but its weight increases - it gets heavier.
When handling slops on an oil tanker, what is meant by "settling"?
Allowing any waxy layers to settle below the residual oil
Allowing the oil and water to separate out
Allowing the mixture to rest once it has been pumped into the slop tank, so that any static charge disperses
Allowing any sediment to separate out and drop to the bottom of the tank
Which of the following options would be a typical pressure setting for a main engine slow down in the event of jacket cooling water system low pressure?
Over a period of a few hours of operation the main diesel engine speed gradually falls off. From the options given what is the most likely cause of this fault?
Fouling of turbocharger intake filters.
Injection valve opening pressure is too low.
What are “contractual clauses”?
Terms and conditions of work employment with the ship owner
Details of amount of time allowed for shore leave
Terms relating to the amount of food and water allowed per person on board
Part ALC 1d of the crew agreement, giving details of specific terms and conditions for seafarers
Which is the "FORWARD SPRING", in the figure?
The Forward Spring is indicated by C, in the figure
The Forward Spring is indicated by D, in the figure
The Forward Spring is indicated by A, in the figure
The Forward Spring is indicated by B, in the figure
Gas detectors are widely used on liquefied gas carriers. Before using a portable combustible gas indicator which has not been used for a period of a few hours what action should be taken?
Just renew the batteries. A calibration is only required if the instrument gives false readings.
Just check the filters. If the sample is free to flow the indicator will work correctly.
Just carry out a zero check and adjustment. If the instrument reads zero correctly it will also read correctly throughout the scale.
Always carry out a full calibration and battery check.
Prior to its partial removal in a water scrubber, what is the approximate Sulphur Dioxide content of flue gas produced by the combustion of fuel oil?
Every oil tanker of 5,000 tonnes deadweight and above delivered on or after 1 February 2002 shall comply with intact stability. What is the minimum GM (metacentric height) when the vessel is in port?
On the figure 4 possible definitions of the term "BOW/STEM" are given. Which one is the correct one?
Bow/stem is given by B on the figure
Bow/stem is given by A on the figure
Bow/stem is given by D on the figure
Bow/stem is given by C on the figure
According to the ISGOTT definition, what is "volatility"?
The tendency of a crude oil or petroleum product to produce gas.
The ability of a crude oil or petroleum product to resist ignition.
The measure of a crudre oil or petroleum product's vapour pressure.
The tendency of a crude oil or petroleum product to ignite.
How is the temperature of the high temperature circuit of a central cooling system normally controlled?
By controlling the bypass of flow for the central coolers.
By increasing the flow rate through the main engine cooling circuit
By controlling the flow through the fresh water evaporator heating circuit.
By mixing with water from the low temperature circuit.
HP pressure fuel pumps for medium speed engines are often provided with visible witness marks on the pump casing and the pump tappet. These along with flywheel position can be used to check the fuel timing for the individual pump. Wfrom the options given select what is actually indicated when the witness marks are aligned?
That the pump plunger has reached the end of its stroke.
That the pump plunger has just uncovered the spill port.
That the main piston for that particular cylinder is at top dead centre position.
That the pump plunger has just covered the spill port.
An International oil pollution prevention certificate is required for:
All ships of 150 gross tons or more
Oil tankers 150 gross tons or more
Oil tankers on International voyages
A lubricating oil having a high viscosity index number would normally be used in which of the following situations?
When the machinery operates at a very high temperature.
When the machinery operates at a high load.
When the machinery operates at a very low temperature.
When the machinery operates over a wide temperature range.
A mechanical-hydraulic speed control governor fitted to an auxiliary engine is giving erratic speed control causing the engine to hunt wildly even when there is only a small load change. From the options given which is the most likely cause of this condition?
Speed droop setting set too high.
Speed droop setting set too low.
Compensation needle valve is open too much.
Compensation needle valve is not open enough.
What must be ensured when using ship’s cargo gear in hot climates?
That all cargo gear is appropriately marked
That grease from wire falls does not fall onto cargoes being loaded or discharged
That the cargo gear register in up to date
That stevedores handle cargo gear in the proper manner
Why is a vessel entering dry dock normally slightly trimmed by stern?
To minimise the loss of stability.
To position the vessel easily over the blocks.
To allow drainage of water off the docks.
To allow better manoeuvring when entering into the dry-dock.
Medium and high speed diesel engines used for marine propulsion normally require a reduction gearbox to be fitted in order to achieve suitable output speeds for the propeller. What device is normally required in the drive arrangement in order to avoid damage to the gearing due the torque variations of the diesel engine output?
A mechanical friction clutch.
In bulk carrier design what constitutes the main structural strength element?
The deck plating and shell frames
The transverse watertight bulkheads
What does the term "ullage" refer to?
The measured depth of product in a cargo tank.
The height from the bottom of a cargo tank to the top.
The special calculations that the Chief Officer makes when he works out the ship's final draughts before sailing.
The depth of free space left in a cargo tank above the current liquid level.
When setting the tappet clearance (rocker arm clearance) on cylinder cover valves it is important that the engine is turned to the correct position. Select, from the options given, the engine correct position for this procedure.
Each cylinder in turn should be at top dead centre position when setting the valve clearances for that cylinder.
Number one cylinder should be at top dead centre position for setting the clearance for all of the valves on the engine.
The engine should be positioned so that the cam follower for the valve for which the clearance is being set is on the cam base circle.
The engine should be positioned so that the cam follower for the valve for which the clearance is being set is on the cam peak.
A cable carries a current of 1500A at 660 Volts and has a voltage drop along it's length of 30volts. Assuming the cable insulation is good enough to work at High Voltage, what would be the voltage drop when supplying the same amount of power at 6600 Volts.
With regard to folding hatch covers in the open position, what will happen when the hydraulic cylinder piston is extended?
The hatch cover panels should rack backwards
The hatch cover panels should rack backwards releasing the cleat wedges
A vapour compression refrigeration system is usually fitted with a number of devices to give protection and control of the system. Which of the methods given in the options should be used to test the high pressure cut out during routine maintenance and checking of the system?
Manually close each of the evaporator coils by switching off the electrical supply to the liquid line solenoid shut off valves and monitor the condenser pressure.
Close the condenser outlet valve and closely monitor the condenser pressure.
Gradually shut in the condenser cooling water valve or the condenser refrigerant inlet valve while closely monitoring the compressor discharge pressure.
Charge the system with refrigerant until the high pressure cut out operates.
The water content of inert gas is important when the gas is used for cargo tank inerting and drying operations on a liquefied gas carrier. Which drier arrangement for the inert gas will result in the lowest water content and dew point of the inert gas?
An absorption drier followed by a refrigerated drier in series can reduce the dew point down to less than minus 40 degrees C.
A refrigerated drier on its own can usually reduce the dew point to less than minus 40 degrees C.
A refrigerated drier followed by an absorption drier in series can reduce the dew point to less than minus 40 degrees C.
A refrigerated drier and an absorption drier operated in parallel can reduce the dew point to less than minus 40 degrees C.
Which vitamin is found only in meat and fish?
How would you prevent hot liquids spilling from pans in heavy weather?
Place absorbant cloths around the pans to catch any spillage.
Dry cook all food, do not use any water or fat.
Use tight fitting lids on the pans, secured with string.
Fit guard rails around the range and fill the pans to a lower level than usual.
What is the purpose of the "Spray Line" as fitted in the cargo system of an LNG carrier?
It is used for cooling down the cargo lines and cargo tanks prior to cargo operation.
It is used for cooling down the inter-barrier spaces.
It is used for cooling down the void spaces and cofferdams.
It is used to flush the deck in case of cargo overflow.
Which of the given options characterizes a 2-stroke diesel engine ?
The piston always has a short skirt.
A 2 stroke engine always has 2 or more turbochargers.
A 2 stroke engine completes a full cycle every revolution.
A 2 stroke engine has an air inlet valve in the cylinder cover.
On a conventional reefer vessel the 'tween decks and lower hold are provided with scuppers leading into the hold bilges. The scuppers normally designed with a U-bend or non-return bend. Complete the following statement from the options given. "Prior to loading a cargo of hard frozen products the U-bend should be…
…filled with clean fresh water."
…filled with clean sea water."
What is the correct understanding of the tem "Angle of Loll" when applied to ships stability?
The angle the ship will lie when the ship has a negative GM
The maximum angle to which the ship rolls when rolling in a seaway.
The angle the ship will lie when it has suffered a shift of cargo.
The angle of heel which the ship must reach before suffering progressive flooding through deck ventilators.
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.
Put it straight into the dirty oil tank for incineration at the next opportunity.
Take it on deck and throw it overboard.
Pour it into the diesel oil storage tank through the sounding pipe.
Pour it into the engine room bilge so that it can be pumped through the oily water separator.
A medium speed diesel engine is used to drive a controllable pitch propeller through a suitable clutch and reduction gearbox. What should the blade attitude normally be after the engine is started and before the clutch is engaged?
The blades should be in the full ahead position.
The blades should be in the zero pitch position.
The blades should be in the full astern position.
The blades should be in the zero thrust position.
What are Primary fenders, with regard to ship-to-ship transfer operations?
Primary fenders are large fenders meant to float between vessels and absorb considerable impact
Primary fenders are tyre-type fenders kept on deck for emergency use
Primary fenders are small fenders suspended between the ships' bows or stern to protect from inadvertent angular contact
Primary fenders are fixed to the bow of an attending tug (if any)
To which of the following are the Hague-Visby rules applicable?
Carriage of animals/livestock
Charter parties incorporating a Clause Paramount
Cargoes stated as being carried on deck
Contracts of carriage not evidenced by a bill of lading
For what purpose do we have booster pumps on the cargo discharge line onboard gas carriers?
On gas carriers we have booster pumps on the cargo discharge line to increase the discharge pressure and reduce the cargo temperature.
On gas carriers we have booster pumps on the cargo discharge line to increase the discharge line pressure above shore back pressure.
On gas carriers we have booster pumps on the cargo discharge line to easily reduce the flow and pressure to shore line.
On gas carriers we have booster pumps on the cargo discharge line to increase the discharge rate to shore.
What is the most common way of handling the LNG boil off gas?
The boil off is let to the atmosphere.
It used as fuel for the main engine.
It used as fuel for the boiler.
It is liquefied and directed back to the cargo tank.
From the options given, select the one which best completes the following statement. "A seaman who is required to work in a hatch containing perishable goods should wear gloves that are…
What is static amplifying
Change in input signal divided by change in output signal
Change in output signal divided by change in input signal
Corresponding change in signals
Change in input signal times change in output signal
What is important to wear for all officers and crew when working on the ro-ro deck during loading and discharging?
Fluorescent vest/ working clothes
What is the name of this unit?
A hydrostatic release unit
An antistatic release unit
Personnel in a high voltage switchroom smell ozone. This is likely to indicate which of the following?
Vacuum circuit breaker problems
Arcing at badly connected bus bars
Air circuit breaker problems
Why is it necessary to use the vacuum pump after major overhaul of the reefer system?
In order to reduce the pressure in the system before start-up.
To evacuate air and water out of the system in order to prevent problem during operation.
To make underpressure in the reefer system in order to get the freon liquid easy back to the system.
Which plan shows the position of the vertical and longitudinal centres of gravity for each cargo compartment?
What is the maximum quantity of cargo permitted to be carried in a single tank on a type 1 chemical tanker as per the IBC Code?
Where is a load-equalising device used?
With parallel lashing rods
With upper and lower crossed lashings
The torsion meter for the main propeller shaft is reading high. The torque is sensed using the angle of twist principle with two clamp rings attached to the shaft at a fixed distance, with stationary proximity switches for measuring the angle of twist and also shaft speed fixed to a rigid stool. What is the most likely cause of the high reading?
Axial slip of one of the clamp rings to bring them closer together.
Circumferential slip of the after clamp ring in the opposite direction to shaft rotation.
Axial slip of one of the clamp rings to move them further apart.
Circumferential slip of the forward clamp ring in the opposite direction to shaft rotation.
During cargo or bunker operations, oil response equipment is to be:
Used elsewhere in the ship
Why may wearing sweat rags slung round your neck when working in the machinery spaces be hazardous?
The rags may cause sweat rash.
The rags may cause you to get too hot and faint.
The rags may be caught by running machinery or power tools.
The rags may be soaked with oil and catch fire.
Passenger ships have a normal requirement of 1 lifejacket per person + 10% for children. In addition to this, how many lifejackets have to be stowed in conspicuous places on deck or at the muster stations?
What is the anticipated rolling period of a ship with a large initial Transverse Metacentric Height (GM) and would there be any associated dangers to consider?
Long slow roll and no particular hazards
Short sharp period of roll associated with breaking lashings and shifting cargo
Short period of roll, but a very stable ship and no associated dangers
Long period of roll with free surface effects at a maximum.
To what Proof Load is an 80T SWL derrick tested?
When talking about cargo operations on an oil tanker, what is "topping off"?
Commencing discharge from another tank, to retain suction, when stripping a tank
Completing the loading of a tank to the required ullage
Filling a cargo tank to its maximum level without causing an overflow
Slow pumping a cargo tank at the commencement of discharge, to achieve a safe ullage, before starting discharge from other tanks
Some fuel oil and lubricating oil separators have a facility to control the back pressure of the clean oil outlet. What is the purpose of this control function?
To help to maintain the oil/water interface at the correct position.
To control the amount of fuel passing through the separator.
To reduce the amount of sealing water required during operation.
To assist in discharging the bowl contents during the sludge cycle.
What is the requirement with respect to pressure/vacuum valves on cargo tanks?
There is no such requirement.
What is the procedure for use of the main engine room fire extinguishing system, e.g. Halon or CO2 system?
Release the Halon/CO2 upon the order of the engineer on duty.
Search the engine room, make sure all personnel is out. -Stop ventilation. -Close for all air access. -Upon approval of the Master, release the halon/CO2.
Search the engine room, make sure all personnel is out. -Stop ventilation. -Close for all air access. -Release the Halon/CO2.
Release the Halon/CO2 as soon as possible without pre warning.
How many buoyant smoke signals are carried in each liferaft?
What do you call the method used for bone-soft part injuries?