Главная Онлайн-тесты CES Chemical tanker 2nd-Off / 3rd-Off Онлайн-тест CES 5.1 для 2nd-Off / 3rd-Off, Chemical tanker vessel

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Тест состоит из случайных вопросов по выбранной теме.

Вопрос 1 из 90

Which one of the listed requirements regarding hand flares do not correspond to present regulations? The hand flare shall:

have a self-contained means of ignition

have a burning period of not less than 1 minute

continue burning after being immersed for 10 seconds under water

emit smoke of a highly visible colour

What class of fire involves gas?

Class C fire

Class D fire

Class A fire

Class B fire

*In which one of the following an oil, the flash point of which only needs to be over 43°C, may be used?

In the kitchen

In the main engine

In emergency generators

In inert gas generators

*When is a locker considered as a high risk service space?

when its area is of 4m? or more

any locker must be considered as a high risk service space

when its area is above 10m?

when its area is above 75m?

What is the necessary precautions to prevent sootfire in the exhaust boiler?

All the mentioned alternatives.

Hose down the smoke side with regular interval.

Clean smoke side regularly with soot blower equipment.

Clean the smoke side with chemicals.

Welding and use of open flames on board tankers in operation are subject to regulation laid down by the Norwegian Maritime Directorate (Norwegian Ship Control Legislation - NSCL). Which of the listed requirements regarding washing and gas freeing before hot work in cargo tanks corresponds to these regulations? (NSCL 22/1294/6).

During loading and discharging of liquified gases and cargo with a flashpoint below 60° C, the use of open flames in machinery and boiler spaces must not take place.

For ships provided with inert gas system minor welding work may be permitted.

No welding or hot work on board ships carrying cargo with flashpoint below 60° C must take place in the tank area before the cargo has been discharged and gas freeing carried out.

The ventilation system shall have a capacity of at least two changes of air per hour for work in enclosed spaces.

*In accommodation spaces, where must smoke detectors be located?

In stairways, corridors and escape routes

In messrooms, public lounges and other public rooms only

In every crew and passenger cabins only

Near ventilation ducts throughout the accommodation spaces only

How does low expansion foam act as an extinguishing agent when dealing with oil fires?

By smothering and also by providing some cooling

By cooling only

The heat from the fire causes the foam to produce an inert gas which gradually extinguishes the fire

By smothering only

What is the capacity of the required portable fluid extinguishers

Not more than 10 litres

Not more than 20 litres

Not more than 13,5 litres and not less than 9 litres

Not more than 20 litres and not less than 12 litres

In case of a fire on the line in an oxyacetylene-line gas welding equipment, what action should be taken?

Close the valves on both bottles, first the acetylene and then the oxygen bottle

Do not close any valve and attack the fire, preferably with powder

Close the valve(s) on the acetylene bottle only

Close the valve(s) on the oxygen bottle only

The position that is determined by built in GPS-receiver in an Inmarsat-EPIRB has an accuracy of about:

1200 meters

2200 meters

4200 meters

200 meters

When ordering foam for restocking of the foam tanks on a Chemical Tanker, and regular protein foam is offered, you would:

Accept it, but make it a point to have it tested every 3 months?

Accept it?

Accept it, but make a remark to change it after 1 year?

Reject it?

Shipboard Emergency Drills must be carried out at least (OPA-90)

Once a year

Once a week

Once a month

Once every six months

When stowing a container vessel, what should be considered when assessing the potential effects on the vessel's torsion?

Weight of the containers

Distribution of the containers

The vessel's draft

Distribution and weight of the containers

What is a "Rescue Sub-Centre" (RSC)?

A centre for underwater search and rescue operation

A unit subordinate to a rescue co-ordinating centre

A center established to assist the main national rescue centre

A national search and rescue centre subordinate to an international search and rescue co-ordinating centre

You are transiting a narrow channel. What can happen in this situation?

The bow will be pushed away from the bank

The bow will be sucked towards the bank

The stern will be pushed away from the bank

None of the mentioned will happen

"Overshoot" is an expression we use when talking about a ship's steering ability. What is the best way to determine how the "overshoot" is on your ship?

Do a 360 degrees turning circle

Do a standing turn

Do a 20/20 degrees zig-zag manoeuvre

Do a 540 degrees turning circle

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 ?

report on the bridge (deck crew) or engine room (engine crew) for further orders

go to (or remain in) your cabin and await further orders

go to your fire station

go to your muster station

Give the meaning of the following symbol:

muster station for families only

embarkation station

muster station

muster station for unaccompanied minors (UM)

What is the minimum number of lifebuoys carried by a cargo vessel of more than 200 metres in length ?

What is the meaning of this symbol ?

Line-throwing appliance

Survival craft pyrotechnic distress signals

Rocket parachute flares

Radar transponder

The Training Manual shall contain instructions and information on the life-saving appliances and the best method of survival. Which of following detailed explanations of crew duties in relation to emergency situations shall be contained therein?

The method and use of sea-anchors (drogues)

The use of oars and other propulsion equipment for survival crafts

The use of navigational equipment for survival crafts

Correct donning of fire protective clothing

Which is the preferred method for starting an air conditioning refrigeration compressor which has been shut down for a period of time?

Start with all system valves fully opened.

Start with the discharge valve throttled in to prevent excess condenser pressure.

Start with suction valve throttled in to minimise risk of drawing liquid refrigerant into the compressor.

Start and stop repeatedly until suction pressure and oil pressure are normal.

You are inerting a cargo tank on an oil tanker, prior to gas-freeing for entry. What is the maximum oxygen content permitted in the inert gas main during this operation, as required by SOLAS 1974?

5% by volume.

2% by volume.

8% by volume.

12% by volume.

How will you calculate transverse accelerations?

Multiply the values taken from tables 2, 3 and 4 of the Cargo Stowage and Security (CSS) Code

Multiply the values taken from tables 3 and 4 of the Cargo Stowage and Security (CSS) Code

From formulae given in the Cargo Securing Manual (CSM)

Rule of thumb and past experience

What action should be taken if the inert gas plant fails during discharge of a liquefied gas cargo?

Slow down the discharge rate until the IG plant is working again.

Open the atmospheric vents to prevent a vacuum in the cargo tanks.

Stop all cargo operations and inform the terminal.

Open the vapour return line from shore to prevent a vacuum in the cargo tanks.

What are the duties of an effective bridge look out?

Ensure there is always a bridge lookout on duty and only leave the lookout when given permission.

Keep a lookout for other ships; navigation lights and any other dangers which may have no lights

All of the alternatives specified

Keeping a constant observation around the ship.

On a RoRo vessel, to what should a heavy vehicle be secured on a car deck?

Clover leaves

Crinkle bars

Lashing holes

'D' rings

Following complete shut down of the steam plant, the boiler has been heated in accordance with the correct starting up procedure, and the steam pressure is rising. What is the correct procedure to be adopted when opening the main steam valve to the range?

Use the main steam valve bypass/warming through line to gradually heat up the steam range with the drains open before opening the main valve.

Open the main valve a little bit to allow the range to heat up.

Open the main valve as quickly as possible to get rid of any water that has collected in the steam range.

Don't open the main valve until the boiler reaches normal working pressure.

On what design temperature do we need full secondarry barrier

When the design temperature is below –55oC

Only if the cargo tanks are loaded

When the design temperature is below –55oC and the tank is not independent type B or C, we must have full secondary barrier

When we are carrying cargo on less than –10oC

You are alongisde to load a cargo of Triethylamine. It will be supplied from shore using an 8-inch flexible hose. When securing this to the ship's manifold (header), how should the connection be made?

With a bolt in every hole in the flange, securely and evenly tightened.

With a bolt in alternate holes, securely and evenly tightened.

With a bolt in alternate holes, securely and evenly tightened, or a minimum of two G-clamps, fitted diagonally across from each other and fully tightened.

Cargo hoses should no longer be connected directly to ship's manifolds for the loading of dangerous chemicals.

Choose the option which is most likely to result in erosion of the tubes in a heat exchanger.

Cooling water velocity too high.

Cooling water temperature too high.

Cooling water pressure too high.

Rate of heat transfer too high.

The inert gas system shall be capable of delivering inert gas to the cargo tanks at a specified percentage in relation to the cargo discharge rate. What is that percentage?

Equal to the cargo discharge capacity.

At least 135% of the maximum discharge capacity.

At least 150% of the maximum discharge capacity.

At least 125% of the maximum discharge capacity.

There are many applications in circuit theory where it is important to obtain the maximum possible power that a given source can deliver. This figure consists of a practical voltage source V(g) with internal resistance R(s). What resistance R(L) will maximize the power transmission from the source to R(L)?

R(L) = R(s)

R(L) = 2 R(s)

R(L) = 0.5 R(s)

R(L) = R(s) / sqrt (3)

Why is nitrogen used for the inerting of hold spaces and interbarrier spaces on LNG carriers?

Because of the high oxygen content of combustion generated inert gas.

Because the carbon dioxide in combustion generated inert gas would freeze when in close proximity to the cargo.

Because of the high humidity in combustion generated inert gas.

Because of the high temperature of combustion generated inert gas.

Shortly after starting up a fuel oil purifier oil is seen to be trickling out of the sludge outlet. Which of the options given is the most likely cause of this problem?

Incorrect gravity disc fitted.

Insufficient seal water supplied during start up.

Damaged bowl seal.

Excessive back pressure in the clean oil outlet.

When describing equipment used in oil tanker operations, what does the abbreviation "VECS" stand for?

Vapour Emission Control System.

Vapour Emission Calibration System.

Vapour Ejection Control System.

Vapour Emission Control Standard.

The station bill contains the details of the emergency signals and:

each crewmember's emergency and regular duties

each crewmember's duties in an emergency

only the officers' duties in an emergency

crew and passenger duties in an emergency

Insulating materials used on liquefied gas carriers are required to have certain properties including a good vapour diffusion resistance. Which of the insulating materials has the highest vapour diffusion resistance?

Mineral wool.

Polyurethane foam.

Perlite.

Polystyrene.

You are approaching a port in a snowstorm. You hear this signal. What kind of vessel is it and what is it doing?

It comes from a vessel restricted in her ability to manoeuvre.

It comes from a vessel engaged in pilotage duties and it is making way through the water.

It comes from a vessel at anchor, less than 100 metres in length.

It comes from a vessel engaged in pilotage duties at anchor, over 100 metres in length.

If all indications are that a cargo has been received without damages, irregularities or short shipment and the phrase "apparent good order and condition" are entered on the Bill of Lading, what type of Bill is this said to be?

A clean Billl of Lading.

An endorsed Bill of Lading.

A Due Title Bill of Lading.

A Bill of Lading completed for shipment.

What is the meaning of the abbreviation "SWL" as stamped on lifting gear around the ship?

Single Winch Load.

Safe Working Load.

Single Working Load.

Safe Winch Load.

On a Container vessel, what do you call the corners of a container which house the twistlocks?

Corner fittings

Twistlock housing

Twistlock corners

Corner castings

s it required that the PA-system (Public Address) is connected to a back-up power sypply?

No, the crew will inform the passengers in case of any black out or power failure

Yes, only if the voyage is more than 12 hours

Yes, the public address system shall be connected to the emergency source of power

A bulk vessel is loading to summer load draught of 10.00 metres; the present draught amidships are 9.96 metres port and 9.98 metres to starboard; The sinkage to maximum loading is?

The sinkage allowed is 30 centimetres ( 0.30 metres)

The vessel is overloaded

The vessel is already at maximum draught

The sinkage allowed is 3 centimetres ( 0.03 metres)

he instrument most widely used for testing of semiconductor diodes is

Ammeter

Ohmmeter

Oscilloscope

Voltmeter

You are going to overhaul a centrifugal pump in accordance with the PMS. The pump is running under optimal conditions and normally operated. Which of the following parts are expected to deteriorate during normal operation and thereby be due for renewal?

The impeller and the impeller fastening nut.

Ball bearings on the pump shaft, and wear rings on pump housing or impeller.

The distance pieces.

The shaft itself .

Your vessel has gone aground on a rising tide on a shallow patch charted as a sand bank. The sea is calm with minimum swell and there is little wind. What immediate actions should be taken?

Immediately put the engines astern and attempt to take the vessel off the bank

Inform the nearest Coast Radio Station of the grounding; issue a Navigational Warning and display the "aground" signal

Display the Aground signal and sound round all tanks and bottom compartments to determine if there are any damaged compartments or ingress of water.

Display the "aground" signal and look round the outside of the vessel to determine if there are any signs of pollution

Why should passenger ships be subdivided into main vertical zones?

To comply with company specific standards defined in the Safety Management System

To comply with passenger safety, cargo safety and hull integrity training defined in the STCW convention

To comply with specific provisions for fire integrity defined in SOLAS and to ensure safety of passengers and crew in case of a fire

To comply with specific provisions for fire integrity defined by the Classification Society

Cargo heaters are frequently used when discharging refrigerated LPG cargoes into pressurised shore tanks. What would be a typical "heating range" required from a heater for discharge of fully refrigerated propane?

From - 55 C to - 15 C.

From -25 C to +15 C.

From - 45 C to - 5 C.

From - 35 C to + 5 C.

Which one of the following international regulations is normally used when handling dangerous goods?

IMDG code

HB code

KLMNG code

SOLAS code

When cargo discharge reaches stripping levels on an oil tanker, it is necessary to reduce the inert gas pressure. Why is this?

To avoid over-capacity in the IG generator.

To avoid locking the cargo pump impeller.

To minimise blowback.

To comply with MARPOL Annex VI.

On a Bulk Carrier, which of these cargoes is susceptible to liquefaction due to compression and/or vibration?

Urea

Iron ore concentrates

Maize

Wheat

What is the purpose of the accumulation test required by Classification Societies for boiler safety valves before the valves can be approved?

To check the pressure at which the safety valve will reset.

To check that the valves have sufficient discharge capacity when operating to limit the build up of pressure when the boiler is on full firing rate.

To check how high the boiler pressure will go before the safety valve operates.

To check that the maximum firing rate can raise the pressure above normal working pressure.

In a crisis, which crew behaviours are most reassuring to passengers?

keeping up with safety knowledge

enthusiasm, confidence, hospitality

dependability

enthusiasm, confidence, decisiveness

Which of the following statements will direct a fire-fighting team to the source of fire?

Fire in the accommodation

Fire on deck

Fire in No. 3 cargo hold, port side, forward

Fire in the engine room

On a General Cargo Vessel cargo is be secured using turnbuckles (bottlescrews) and wires; what is the minimum number of bulldog grips that should be used to attach wires to turnbuckles ?

A minimum of three

A minimum of four

A minimum of two

One only is required

What are the limitations of Cargo Securing Manuals?

They are developed whilst ships are still under construction and may therefore be unsuitable under certain operational conditions

They are not always approved by a classification society

Some Cargo Securing Manuals cover a full range of sister ships

Cargo securing arrangements in the manuals may be unsuitable for heavy weather conditions

What is the main purpose of 'gassing up' the cargo tanks of an LNG carrier?

To ensure a uniform temperature in the cargo containment system prior to loading.

To remove IG tank atmosphere with warm cargo vapour prior to loading the cargo.

To avoid a pressure rise in the liquid dome during loading.

To bring the cargo containment system to a temperature which will prevent excessive boil off during loading.

What should be the breaking stress of lashing belts used to secure light vehicles, on board a ro-ro vessel?

3.0 to 3.5 tonnes

1.2 to 1.5 tonnes

2.0 to 2.5 tonnes

4.5 to 5.0 tonnes

Before loading operation starts, what shall you as duty officer observe?

The hoistable decks in correct positions and stanchion-guard placed where needed?

The angle on the stern ramp in order?

Leave everything to the crew?

Physical checking the ramp/cargo holds/hoistable decks and see that everything are in order and the ship-s gear correctly located?

You are alongisde, port side to, about to commence loading several grades of chemicals. The Duty Officer instructs you over the walkie-talkie to proceed to the port manifold and open the valve to 4 port line. When you get there, there is no hose connected to that line. What will you do?

Take a look at the starboard manifold. There is a hose loop between 4 port and 4 starboard lines. Assume the Duty officer must have meant this side and open 4 port line on this manifold.

Open the valve to 4 port line as instructed.

Although there is no hose connected to 4 port line, there is one connected to 3 port line. Assume the Duty Officer must have meant this line and open this valve instead.

Report the situation back to the Duty Officer. Request clarification and confirmation of the instruction.

On a Container vessel, which document should be consulted for guidance with respect to lashing containers onboard 'own vessel'.

The company's ISM handbook.

The Code for the Safe Practice for Cargo Stowage and Securing.

The Stability Manual.

The Cargo Securing Manual

Which of the following statements is correct with regard to IMDG Class 4 (flammable solids) cargoes loaded on a General Cargo vessel?

The cargo is not covered by the requirements of the IMDG Code

The goods can only be carried in the forward part of the vessel

The cargo can be stowed anywhere on the vessel

The goods require protection against movement and can only be loaded if a cargo declaration is supplied by the shipper

On a RoRo vessel, why is it necessary to maintain safety markings/luminous paint on pillars in ro-ro decks?

To comply with the company's standing instructions

Because it is a port state control requirement

To comply with the ship's Planned Maintenance Schedule

To prevent damage during cargo operations

What is a hydraulic hand pump usually used for?

A hydraulic hand pump is usually used to slacken the windlass brake

A hydraulic hand pump is usually used in an emergency to open the hatch covers

A hydraulic hand pump is usually used to steer the ship from the Emergency position

A hydraulic hand pump is usually used to tighten G-nuts

What dangers are associated with the carriage of empty tank containers?

They may not declared as being empty when in fact they are not

They could easily collapse due to being empty

They may contain flammable cargo residue

They could explode if their vents are closed

To what Proof Load is a 30T SWL derrick tested?

38T

35T

40T

33T

How many lifejackets are required in a passenger cabin?

Twice the number of beds in the cabin

At least 2

None, they will be handed out at the muster station

Same number as beds in the cabin

During maintenance work on a fuel tank the engine room ratings are removing scale in preparation for re-coating. One of the ratings suddenly notices the smell of fumes even though the atmosphere had been satisfactorily tested before the work started. What action should the ratings take?

Stop work until the smell disappears and then carry on removing the scale.

Leave the tank immediately and have the atmosphere retested.

Ask for another fan to be switched on to increase the ventilation in the tank.

Put on breathing apparatus and carry on with the task.

Which of the following measurements will include a D/P transmitter in the control-loop

Oil mist

Smoke indication

Temperature

Pressure

When would the cargo tanks of an LNG carrier normally be inerted?

Immediately after every cargo discharge operation.

Immediately before any of the ship's personnel enter the cargo tanks.

Before gas freeing for maintenance and inspection and after completion of the maintenance and inspection.

Immediately before every cargo loading operation.

What is "DRAUGHT", in the figure?

Draught is D, in the figure

Draught is A, in the figure

Draught is C, in the figure

Draught is B, in the figure

Provided it is considered safe to do so what is the best method of cleaning a cargo hold that contained grain?

Sweep the cargo holds after discharge

Hose down the cargo holds after discharge

Sweep and clean cargo holds from the top down as discharge progresses

Sweep and clean cargo holds from the top down as discharge progresses followed by a final wash

What distinguishes a "parcel" chemical tanker from other designs?

Such a vessel is fitted with interactive computerised gauging, pumping, valve control and alarm systems for each tank, enabling all data for a single cargo to be concentrated in a single computer display.

Such a vessel is automatically able to achieve segregation of hazardously reactive noxious liquid substances by its design alone.

Such a vessel is fitted with a highly accurate tank gauging system, enabling it to deliver multiple parcels to different receivers from within the same cargo tank.

Such a vessel has a higher number of relatively small capacity, independent cargo tanks, each with its own line and pump, enabling it to carry and deliver multiple grades simultaneously.

On a Container vessel, what is 'defrosting' associated with?

Reefer containers

Containers carrying IMDG cargoes

Dry cargo ventilated containers

Fan containers

Which of these measures would you implement to prevent drugs from being smuggled onboard your ship while it’s berthed?

"Search some of the packages, spares and stores received."

Maintain restricted areas.

Check a portion of the bags and packages brought onboard.

Eliminate fore and aft deck watch at night.

What is the recommended maximum salt intake per person per day?

2,300 milligrams (0.08 ounce).

635 milligrams (0.02 ounce)

1gram (0.04 ounce)

4,600 milligrams (0.16 ounces)

What is the requirement to membranes on Independent Tank Type "A"?

No barrier required.

Complete secondary barrier.

Only primary barrier required.

Partial secondary barrier.

On a Container vessel, where should containers containing marine pollutants be stowed?

Under-deck

In the foremost container bay on deck

Anywhere on deck at the extremity of a container stow

In the last container bay on deck

Marine steam boilers are protected with a number of safety features which are designed to prevent damage to the boiler due to overheating or overpressure. How is this protection achieved when a very low water level condition (often referred to as low low level) develops during operation?

The main and auxiliary feed control valves open fully while all burners continue to operate.

All burners are automatically and immediately shut off.

All but one of the burners is shut off with the remaining burner being reduced to minimum firing.

All burners are automatically set at minimum firing rate.

During overhaul of a hydraulic pump a large number of small components are removed. Where should these components be kept so that they are not lost and are available when rebuilding the pump?

They should be kept in a boiler suit pocket.

They should be placed in the pump save all.

They should be placed in a clean box or tin and covered over.

They should be placed inside the pump casing.

Which of these statements is correct?

Steel slabs may rest directly against the ship’s frames

Steel slabs do not require dunnage

Steel slabs may be loaded within the square of the hatch only

Steel slabs must never be permitted to rest directly against any part of the ship’s structure

What is the purpose of automatic trip system onboard, and how does it function?

Automatic trip is to avoid over pressuring of cargo tanks, the trip function is often initialised by a float switch.

Automatic trip is to avoid tanks and pressurised vessels becoming overloaded, the trip function is often initialised by a float switch.

Automatic trip is to avoid tanks being cooled too much, the trip function is often initialised by a float switch or a temperature switch.

Automatic trip is to avoid tanks becoming overloaded; the trip function is often initialised by a float switch.

What is most important for visual search purposes?

Use of standard search pattern

Design of special search pattern

Start a search immediately

Design of individual search pattern

Special "additives" are sometimes blended with, or added to, chemical cargoes to prevent polymerisation, decomposition or oxydation while they are in the ship's tank on a long voyage. What general term is given to these additives?

Inhibitors.

Preventors.

Activators.

Limiters.

Sometimes an early warning of failure in High Voltage switchboards may be an unpleasant smell. If the switchboard uses gas circuit breakers, which of the following may indicate a potential problem?

Chlorine.

Gas oil.

Rotten fish.

Rotten eggs.

In discussing the properties of oil cargoes, which of the following are examples of Aromatic Hydrocarbons?

Benzene, Toluene and Xylene.

Hydrogen Sulphide and Carbon Monoxide.

Carbon Dioxide and Hydrogen Peroxide.

Propane, Butane and Pentane.

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

What does the Captain think about the Chief Mate's question?

He thinks, it is not a bad idea to sail in open waters because the traffic is sparse

He does not want to train the OS as helmsman because there is too much traffic in the area

He does not want the OS to go on watchkeeping duties next week because they are sailing in open waters

He wants the OS to train as helmsman today, because they are sailing in open waters and there is not much traffic in the area

Данный онлайн-тест состоит из 90 случайных вопросов из тестов CES 5.1 по выбранной вами тематике.