在线测试： Test online CES 5.1 for Deck department, Support level, Passenger vessel

By running a centrifugal pump what will happen if the NPSHA (Net positive suction head available) is less than NPSHR (Net positive suction head required) ?

What is the minimum number of independently driven fire pumps that must be provided on general cargo ships of 1000 gross tonnage and upwards?

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 :

In MARPOL 73/78, the term "Special Areas" is mentioned in connection with discharges from oil tankers. What do you understand by this term?

A triac is used to provide temperature control of an oven. The galley complain that the oven only reaches approximately 50% of demanded temperature. Which of the following is a likely cause?

You are proceeding along a narrow channel behind another vessel. You have a higher speed and have signalled your intention to the vessel ahead that you intend to overtake him on his port side. The vessel responds with this sound signal. What does it mean?

Normally ventilation fans in enclosed ro-ro spaces must be run continuously whenever vehicles are on board, why?

Why are all RoRo passenger ships divided into vertical ’zones’?

Indicate the correct name for the tool on the sketch:

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.

On a Container vessel, where should a mid-bay guide be positioned?

Which shipboard publication sets out calculations for cargo lashings?

On a Container vessel, what must be done as soon as reefer containers have been loaded?

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?

Which international convention deals with maritime safety and safety equipment onboard ro-ro passenger vessels?

Which ships shall apply to the amended version of the IGC Code?

Failed O-rings on a 2 stage air compressor cylinder liner have resulted in a water leak. Where is the leaking water most likely to go when the compressor is operating?

Before commencement of any work aloft, you should carry out risk assessment of the worktask. What kind of extra personal protective equipment is required as a minimum to carry out the work?

What is a Marine Evacuation System?

Where should placards be located on a freight container?

Why is it necessary to control the rate at which iron ore is loaded on a Bulk Carrier?

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?

What action should be taken if machinery does not function properly?

The correct time to synchronise is usually taken to be when the synchroscope reaches the "5 to 12" position and is rotating slowly clockwise. This to allow for:

A heavy piece of machinery is loaded on deck of a container vessel, stowed across several flatrack containers. Select the most appropriate lashing method.

What immediate actions should the Officer of the Watch take when the ship goes aground on an uncharted shoal in the middle of the ocean?

For what are bridge indicators required on board a ro-ro vessel?

The piston rod of a large two stroke diesel engine has been damaged and is heavily scored in way of the piston rod gland (stuffing box). It has been decided that it is economically viable to recondition the rod at a shoreside facility. Select, from the options given, the most suitable repair method that should be used?

What is the requirement with regard to Familiarisation on board?

To whom should the Master immediately report a shipboard incident involving the loss overboard of dangerous goods?

What is the name of the device used for continually checking ballast water as it is pumped overboard?

A conventional reefer vessel is loading cargo of palletised fruit under controlled atmosphere (CA). Which of the given options is it essential that the deck officer confirms at completion of loading and before applying CA to the cargo?

A large 2 stroke engine is normally controlled from the bridge during manoeuvring. In this type of automated control for the starting system what would normally cause the 'Engine Failed to Start' alarm to be activated and to lockout starting from the bridge?

What type of ships are LNG carriers as designated in the IMO IGC code?

At what temperature would you expect to carry a fully refrigerated cargo of ammonia?

How is overfilling of the cargo tanks on a liquefied gas carrier prevented?

Your ship is loading at a Single Point Mooring. You are the rating on duty. Which of the following areas will you monitor continuously throughout your watch?

By what means can we monitor and control the integrity of the hull?

How is the condenser cooling water flow regulating valve automatically controlled in a vapour compression refrigeration system?

Which of the following foods will increase the cholesterol levels in the blood if eaten in excessive quantities?

By what means can we monitor and control the integrity of the hull?

A combustible gas indicator of the catalytic filament type is used to check the atmosphere in an enclosed space onboard ship. When taking readings in a fuel tank which has been emptied for cleaning the meter reading initially rises and then falls back to zero. What is the likely defect, if any, in the instrument when this type of behaviour is displayed?

The diagram shows the lead of a rope during mooring operations and the possible point where it may break. Where would be considered the safest place to be standing?

A General Cargo vessel has 50 tonne SWL heavy lift derrick; a load of 48 tonnes is to be loaded ;the lifting gear of slings and spreader bar weighs 4 tonnes ; which of the following statements is correct?

At what calendar interval must cargo hoses in service on board be tested and certified as fit to continue in use?

During maintenance work on a main diesel engine the fuel injection valve is found to be jammed in the pocket in the cylinder cover. Which of the procedures given in the options should be followed in order to complete the work?

On a RoRo vessel, what should be done if a non dangerous goods ro-ro unit is found stowed in an incorrect location?

A large vessel develops a sudden sheer when it stops moving through the water, having been steaming through a shallow water channel for several miles. The sheer may be strong and unexpected and is due to what reason?

Once a vessel has discharged a fruit cargo it is important to check that all cargo residues have been removed, particularly if the next cargo is to be a sensitive fruit cargo. From the options given, select the most important reason for this requirement.

Why do cargo tanks on a chemical tanker commonly have their own individual pipelines and cargo pumps?

When describing Crude Oil Washing on an oil tanker, what name is given to areas within a cargo tank that are not directly impinged, or hit by the stream from tank washing machines?

The cargo tank pressure reading for a refrigerated cargo of propane is higher than the saturated vapour pressure for the cargo temperature. e.g. an absolute pressure of 1.5 bar at minus 43 degrees C. If the cargo tank had been cleaned before loading the cargo what is the likely cause of this condition?

Under what load condition would sootblowing of the boiler tubes be most beneficial?

The buoyancy forces upwards act at what part of the hull?

Where would you look for a summary of important safety and handling information on a cargo loaded on your ship?

In terms of electrical units, what is Hz the abbreviation for?

With the exception of some citrus fruits and bananas, fruit is usually pre-cooled to the required carriage temperature prior to loading on a reefer vessel. In order to protect the cold chain, and to maintain the temperature of the fruit, a minimum exposure time to ambient conditions during loading is necessary. What action should the deck officers take during loading to achieve this minimum exposure time?

An auxiliary engine is fitted with a duplex type lubricating oil filter. The in-use element requires changing. What procedure should be used to fit the new element?

A new joint is required for a sea water pipe flange and there are no ready made spares. What is the best method for making a new joint from a sheet of rubber insertion?

How often shall drills for the operation of watertight doors, side scuttles, valves and closing mechanism of scuppers, ash-chutes and rubbish chutes take place in passenger ships?

On a RoRo vessel, what should be used to secure cars with aluminium tyre rims?

When an engine is working normally, the lubricating oil return temperatures are moderate and the running temperatures of the moving parts are also moderate. Lubricating oil is not a volatile liquid and the temperature inside the crankcase is insufficiently high to cause concentration of vapor. What would be the flash point of the lubricating oil?

What are Primary fenders, with regard to ship-to-ship transfer operations?

A decision support system for emergency management shall be provided on the navigation bridge. What type of emergency situations shall as a minimum be identified in the emergency plans?

Which of the following answers would most appropriately describe shell plating damage to the vessel?

Why should all bulk cargoes be trimmed and levelled on completion of loading?

All cargo hatch covers on a bulk carrier are to be hose tested in the presence of a surveyor, prior to loading a cargo of steel coils; what should be done to the hatch covers before the test?

What are safety cones used for on a RoRo vessel,?

Where will you find instructions on how reduce or control an oil spill during bunker operations on a General Cargo vessel?

With regard to radar, what would be a correct form of response to the question: What range scale are you using?

Chemicals and harmful substances are safely stored in a designated locker on board, why?

When we are measuring salinity with a salinometer, the sensing device is:

What is the Maximum Securing Load (MSL) for a wire rope lashing connected to an eye plate by means of a shackle?

It is necessary, prior to loading a refrigerated cargo on a conventional reefer vessel, to prove that the hold bilges are clear and that the bilge system is functioning correctly. Which of the cargo types given in the options would be expected to produce the most water during a voyage?

During a stay in port, what shall always be ready at the gangway?

What would you do immediately if you saw oil spilling from a bunker hose during cargo operations?

On a Container vessel, what must be done when container lashing equipment fails at sea?

What is the estimated average daily calorie intake required by an active adult male?

For ideal synchronising, the phase angle difference between the incomer e.m.f. and the busbar voltage should be:

Which of the following conditions will block the starting signal for the air start system of a medium speed diesel engine which is being used for main propulsion purposes?

Fuel oil from a leaking fuel pipe has been collected in a drip tray under the boiler furnace.The oil is suddenly ignited by a backflash from the boiler burner.The boiler room is manned and the person present has the choice of various extinguishers. The fire is purely a surface fire. What would be the preferable extinguisher?

Having a CO2 alarm during normal working hours, what immediate action should be taken?

If the general/fire alarm are sounding, and evacuation is required. What is the best way to ensure that all passengers are aware of the situation?