Головна Онлайн-тести CES Passenger Deck Support Test online CES 5.1 for Deck department, Support level, Passenger vessel

Онлайн-тестування: Test online CES 5.1 for Deck department, Support level, Passenger vessel

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Тест складається із випадкових питань з обраної теми.

Питання 1 з 90

What is a polar (liquid)?

A liquid that mixes with water

A liquid that conducts electricity

A liquid that emits flammable vapour

A liquid that doesn't mix with water

What should you do if the temperature of Hydrogen Peroxide Solution 65 % carried is raising 2° C per 5 hours and the temperature is above 40° C ?

The cargo should be monitored closely for the next 12 hours.

The cargo should be heated up to 45° C.

No special action to be taken.

To avoid uncontrolled decomposition the cargo should be discharged overboard.

You are planning the discharge of a crude oil tanker with segregated ballast tanks, SBT. Which of the cargo tanks should be crude oil washed if you are expecting heavy weather?

All the cargo tanks that were not COW'ed in the last discharge port

At least 30% of the cargo tanks

The dedicated heavy weather ballast tank

Both sloptanks, and 30% of the remaining cargo tanks

How can an ARPA assist the ship to steer a suitable course to make good the entrance to a channel?

Select Relative motion display and make Own Ship vector pass through the middle of the entrance to the channel.

Select ground stabilised true motion display and alter course so that own ships true vector passes through the middle of the entrance to the channel.

Select True ground stabilised vectors and make the vectors from both buoys at the entrance to the channel pass either side of the centre of the screen.

Acquire the buoy at the entrance to the channel and on relative vector display alter course to make the vector of the buoy pass directly through the centre of the screen.

You are to turn your vessel in a narrow canal by use of two tugs with the same power. The wind varies in the range moderate/strong. Where/how would you use the tugs?

Pushing, made fast in the vessel

One tug pushing, one tug pulling

Pulling, made fast in the vessel

Pushing, not made fast in the vessel

You are duty officer on the bridge. An eye-witness has reported a man-overboard. Which of the following actions is the correct manoeuvre in this situation?

Direct Turn

Williamson Turn

Scharnow Turn

Evinrude Turn

Which of the alternative methods of using a tug when escorting your ship through narrow waters do you think is the most effective if you lose steering power?

The tug-s bow against my stern, made fast with lines. By moving the tug to either side of my stern, this will help to steer the ship (figure 4).

Running free alongside, ready to be made fast (figure 2)

Made fast forward on either shoulder, ready to push (figure 3)

Made fast in a line at the bow (figure 1)

When Sen. Deck Off. of both vessels involved have decided which will be the last lines to be let go whilst unmooring, these lines should be made fast as follows on the ship accepting the lines.

By keeping the rope on the warping drum of a deck winch, fig. 3.

By turning up the rope on the bitts, fig. 1.

By putting the eye on the bitts, fig. 2.

By shackling the eye to a strongpoint, fig. 4.

*The person in charge of a lifeboat :

must check that the crew under his command are acquainted with their duties

must have a list of the survival craft crew

all of the above

must check that the second in command has also a list of the lifeboat crew

What does a ship’s angle of pitch vary with?

The ship's length

Propeller pitch

Sea state and wind force combined

The sea state

Why should wet cloths not be used for carrying hot cooking pans?

Because Health and Safety regulations prohibit the use of a wet cloth within 2.5 metres of a galley range.

Because they conduct heat quickly and may cause scalding.

Because a cloud of steam will be generated and the person carrying the pans may find it difficult to see where he is going.

Because the mositure will transfer to the pan and cool the contents.

Every person onboard ship has a responsibility for safety and security. General house-keeping rules should be followed. Which of the listed rules is the most important onboard a tanker?

Never carry lighters or matches on the tank deck.

Always wear safety shoes on deck..

Always use the handrails when going up or down ladders.

Always use gloves when operating portable grinders and chipping machines.

How do You want to operate the purifier to obtain the best separation result?

By high flow and low temperature.

Flow and temperature have no influence on the result.

By high flow and high temperature.

Separation with correct temperature and low flow rate.

What is the safe time for operating the crankcase door when oil mist alarm is activated and the engine has been stopped?

After 20 minutes

After 1 minute

After 10 minutes

After 5 minutes

Before starting a transfer of oil, the person in charge on the vessel and the person in charge on the facility must hold a pre transfer conference. Who must decide to start the transfer?

Both persons in charge

The person in charge on the facility

The person in charge who is handling the pumping

The person in charge on the vessel

Which device does this graphical symbol illustrate?

Inverter

Rectifier

Pressure to current converter.

Differential pressure transmitter

Which of the following is a requirement on an oil tanker before entering any enclosded area containing inert gas generating equipment?

The oxygen level should be checked with an explosimeter

The atmosphere should be gas free and contain 20.9% oxygen

The atmosphere should contain at least 5% oxygen

The atmosphere should contain not more than 5% by volume of explosive and poisonous gases

A pump cover is sealed using a paper gasket which is damaged during overhaul. There are no spare gaskets available. How should the casing be sealed when reassembling the pump?

Re-use the old gasket.

Run a bead of silicon around the outside of the joint after fitting the cover.

Put a thick layer of jointing compound on the face of the cover and tighten the cover until the compound squeezes out.

Make a new gasket from old chart paper or other similar material of the same thickness as the original gasket.

When securing a non-standardized portable tank on a RoRo vessel, what is a favourable securing angle that will prevent it from transverse sliding?

15 to 18 degrees

18 to 23 degrees

30 to 33 degrees

23 to 30 degrees

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

If a vessel’s Longitudinal Centre of Floatation (LCF) is 60.582 in saltwater, what would be her LCF is water of density 1.015 T/m3?

60.582m

61.178m

63.027m

59.99m

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)

What will be the probably outcome if the amplification is set to high on the controller

Nothing

The process response will be very slow

The process will oscillate and get out of control

The set-point will change

On a container vessel, what should be referred to when taking action to deal with a cargo spillage under-deck?

The ship's Contingency plan

The EmS Guide

The Dangerous Cargo Manifest

The ship's Safety Management System (SMS)

A 450 volt, 859 kW rated generator has not been in operation for several weeks. Prior to starting, insulation resistance readings are taken. The minimum acceptable insulation resistance reading on the main stator winding to allow you to proceed with running the generator is:

10 Ohms

10 000 Ohms

10 000 000 Ohms

1000 Ohms

Cargo holds on a bulk carrier are washed after discharge, but cargo residues are often found on the tank top when hatches are opened at the load port. What could be the likely cause?

Holds were not inspected thoroughly after cleaning

Due to failure of the bilge eductors

Because of cargo residues falling down due to ship's vibrations during the ballast passage

Because of poor drainage into the bilges

What basic information do we get from the pump system curve?

We get information about the pump's liquid flow.

We get information about the pump's ampere, delivery pressure and suction height.

We get information about the pump's lifting height and lifting flow.

We get information about the pump's suction height and liquid flow.

Your ship has its main entry door from the maindeck on the starboard side, a few metres back from the front of the accommodation. It is also the closest emergency exit from the ship's offices and the crew mess-room in the event of an emergency. You are about to commence loading cargo. There are no significant security concerns. What should happen to the door?

It can be open, provided the wind is blowing away from the accommodation.

It should be closed and locked.

It should be closed, but not locked.

It should be open in case an emergency occurs.

SOLAS reg II-2 and IMO MSC.1/Circ 1321 requires that cargo pump rooms on oil tankers shall be mechanically ventilated, using non-sparking suction type fans. What is the minimum number of changes of air per hour that a ventilation system must deliver?

At least 15 per hour.

At least 30 per hour.

At least 10 per hour.

At least 20 per hour.

When a new crewmember joins a ship for the first time, on-board training and instructions in the use of the ship's life-saving appliances, including survival craft equipment and in the use of the ship's fire extinguishing appliances shall be given as soon as possible. What is the maximum timeframe for completion of this training?

Maximum 2 months

Maximum 6 months

Maximum 2 weeks

Maximum 1 week

Which IMO publication deals specifically with the construction and equipment of liquefied gas carriers?

The IMDG Code.

SOLAS.

MARPOL.

The IGC Code.

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

The Flag state

Vessels in the immediate vicinity

The ship owner

The nearest Coastal state

In the context of oil tanker operations, what is "clingage"?

Oil residues remaining in the bottom of a cargo tank after tank-cleaning

The resistance to flow in a pipeline during the discharge of an oil cargo

Electrostatically charged bubbles of air and moisture suspended in an oil cargo after loading

Residues remaining on the inside of a pipeline, or on the internal structure of a cargo tank after an oil cargo has been discharged

What is the hydraulic hand pump usually used for?

The hydraulic hand pump is usually used as a converter for the grease nipples

The hydraulic hand pump is usually used to blow up the fitter

The hydraulic hand pump is usually used to slack the brake on the windlass

The hydraulic pump is usually used for tightening the G-nuts

What is a "consignee"?

Any person or company which seeks to transport a consignment of cargo by sea.

Any person, organization or government that prepares a consignment for shipment.

Any person, organization or government entitles to take delivery of a consignment.

Any person or company responsible for the operation of a vessel which carries a consignment as freight.

On a container vessel, when would a bulk liquid cargo carried in a flexitank container be considered dangerous?

When the associated material safety data sheet shows a constituent(s) listed in the IMDG Code

When declared as a non-hazardous chemical

When the shipper instructs that the container be carried on-deck only

When declared as bulk liquid foodstuff

During loading or discharging liquefied gas cargoes it is important to control the pressure in the cargo tank. What is the preferred method of maintaining pressure and avoiding a vacuum condition in the cargo tanks while discharging?

Stop the discharge periodically to allow boil off gas to build up the pressure.

Increase the pumping rate and recirculate some of the cold liquid cargo back to the tank

Use a cargo vaporiser to feed hot vapour back to the tank to maintain required pressure.

Reduce the discharge rate until the pressure builds up again and then increase it back to maximum.

Following maintenance work on an air compressor the engine room rating is asked to put the tools away. It is noticed that an allen key is missing from the set. What action should be taken?

Get another one from the store to make up a full set again.

Assume it has fallen in the bilge and look for it when the bilges have been pumped.

Make a note in the log book so the other engine room staff know it is missing.

Inform the engineer in case it has been left inside the compressor when it was closed up.

What is the master's position if he is asked to load a container that is incorrectly manifested, but which is believed to contain dangerous goods, about which insufficient information is supplied?

If it it approved by the operations department, he can assume all safety checks have been carried out and should load it.

He has the authority to refuse it.

He must load it, but ensure it is placed in a safe loaction, to which there is immediate access in the event of an emergency.

He must load it, but immediately advise his operations department and request full information.

The threads on the drain plug for the bronze end cover of a sea water cooled heat exchanger have been badly damaged during maintenance. There is no spare brass plug available. What is the best solution for repairing the heat exchanger?

Use a steel plug with the same thread as the original to replace it.

Wrap the threads in thread tape and coat it with jointing compound before refitting it.

Hammer in a wooden tapered plug as a temporary repair.

Make a new brass plug on the lathe to fit the drain hole.

The instrument air system is suffering from excess water carry over to the instrument air lines. The air intake to the compressor has very high humidity. Which of the actions given in the options will most likely result in reducing this problem?

Use an additional coalescer filter in the inlet to the instrument air filter system.

Shorten the time between automatic receiver drain blow downs.

Reduce the superheat setting on the instrument air refrigeration/dryer unit.

Increase the cooling water flow through the compressor intercooler and aftercooler.

After water-washing the turbocharger exhaust side it starts to vibrate even though it was operating normally prior to the washing procedure. What is the most likely cause of this problem?

The foundation bolts for the turbocharger are loose.

The rotor blades are damaged or the blades are not properly cleaned

Water drain for washing system is blocked allowing water to build up in the turbine casing.

The turbocharger bearings are worn out.

The temperature control for a hot water system is very erratic with the temperature gradually rising and then suddenly falling and vice versa even though system demand is fairly constant. Which of the options given is the most likely cause of this problem?

Control air pressure supply is too low.

Control valve actuator diaphragm is ruptured.

Controller integral action reset time is too fast.

Control valve gland is over tightened.

What is a "Bollard"?

A Bollard is a very heavy rope

A Bollard is a rope made up of several strands

A Bollard is a thick steel post to which mooring lines are secured

A Bollard is a loop in a rope

What should be done with the data logger printouts after completing the discharge of a refrigerated cargo?

They should be retained onboard for a minimum of 2 years.

They should be handed over to the cargo receiver.

They should be retained onboard indefinitely.

They can be discarded once the discharge is completed.

When a ships derrick or crane lifts a weight off the deck of a ship, from which position can the centre of gravity of the weight be considered to act?

From a position on the deck at the base of the derrick or crane

From the position on the deck from which the weight was lifted

From the head of the derrick or crane

From the centre of the weight lifted

What is the maximum pressure that the safety valve on a steam boiler should be set to lift?

3% above the normal working pressure.

10% above the normal working pressure.

At the maximum design or maximum permitted working pressure of the boiler.

3% above the maximum design pressure..

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

For safety reasons and stock control. When chemicals or harmful substances is delivered to a crewmember, the user shall sign for the amount received.

For stock control. Most of the chemicals and harmful substances we use on board are expensive.

Chemicals and harmful substances must be kept away from passengers so that they don't steal it.

For safety reasons. Many substances found onboard are capable of damaging the health and safety of those exposed to them. Before any chemical or harmful substance is delivered to a crewmember, the personnel shall receive training, instructions and information so that they know and understand the risks arising from use.

What is done at a five yearly thorough inspection of lifting plant on a General Cargo vessel?

Derricks are tested

Lifting plant is proof load tested and all parts thoroughly examined

Deck cranes are tested

Deck cranes are tested and their parts thoroughly examined

What could be the reason for the magnetic compass to swing through large angles when the ship is rolling in a seaway?

The error due to deviation is large for that ships heading

The heeling error magnets are upside down and/or not in the correct position.

The Coefficient B determined by the Compass Corrector at the last dry-dock was not correctly calculated.

The induced magnetism from the earth's magnetic field is very strong in that area

On a RoRo vessel, why should chipping and painting not be done on a loaded car deck

because there is not enough space to work with the cargo in the way

To avoid damage to the cars or their paint work

because you cant run the ventilation and the fumes will overcome the crew

After communication plugs are connected, the ESD is tested from?

No testing required.

Shore.

Ship and shore.

Ship.

"Overshoot" is an expression related to a ship's steering ability. What is the correct understanding of this expression?

It is the way a ship turns when putting the helm in a hard over position

It is how many degrees of the compass a ship continues to turn after applying counter-rudder

It is the amount a ship moves forward after the engines are stopped

It is the way a ship continues to turn when the helm is put amidships

Which of these situations will cause undue delay to a vessel at her port of discharge?

Slow operation of hatch covers

Carrying out an off-hire survey

Carrying out an open-hatch condition survey

Asbestos mixed with the cargo

Which of the following symptoms would indicate that the filter drier in a refrigeration circuit has become blocked?

A hammering noise from the drier.

A pressure rise before the drier.

A large temperature drop across the drier.

A hammering noise from the compressors.

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.

The cargo residue is unsightly.

The cargo residue can produce large amounts of ethylene.

The cargo residue may become smelly.

The cargo residue may attract the attention of the loading surveyor.

When preparing cargo cranes for operation on a General Cargo ship using shore personnel, what are three of the most important checks to be made?

Crane wire is greased, windows clean and cab heater on

Check that cab is clean, air conditioning is on and windows clean

Limit switches are not in use, wires are clean and emergency stop is isolated

Check that winches, brakes and emergency stops are working correctly

A refrigerated container is loaded onto the deck of a conventional reefer vessel and landed on flat dunnage. Select, from the options given, the most appropriate and quickest method of securing the container onto the deck.

Heavy rope lashings.

Patented chain and tension bars.

Wire rope, wire clamps and turnbuckles.

5 tonne spanset strops.

Who decides the number of lashings you should put on a trailer?

The loading officer

The Bosun

The operation manual

The captain

What is understood by the term "a Combination Carrier"?

A general cargo ship

A ship designed to carry either oil or solid bulk cargoes

A ship designed to carry bulk cargoes in alternate holds

A ship designed to carry all types of cargoes

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."

left empty."

…filled with brine."

Why should cargo holds be swept completely prior to washing on a bulk carrier?

Because it is a requirement under MARPOL 73/78

So that cargo residues will not be pumped overboard

Because it is part of a company's safety management system

So that cargo residues will not clog the bilge lines and associated suctions and valves

The recommended distance between parallel tracks (track spacing) in a search for a casualty by a surface vessel varies (amongst other factors) according to visibility and the nature of the target in the IAMSAR Manual. These distances are then normally adjusted for prevailing weather conditions. If visibility was 5 nautical miles and you were looking for a six-person liferaft, what would the recommended uncorrected track spacing be?

2.5 nautical miles.

5.0 nautical miles.

3.6 nautical miles.

0.7 nautical miles.

On a RoRo vessel, why are short lashings better than long lashings for ro-ro units?

Because ships' vibrations will not slacken short lashings

Because it is a cargo securing manual requirement

Because they're easily tightened and tensioned

Due to what could a bulk carrier fail a cargo hold inspection?

Loose rust around the cargo hold

Rusty tank top plating

Hardened rust spots on shell plating

Rust stained hopper tank plating

A water heating system with automatic temperature control uses steam as the heating medium and the temperature is controlled by a pneumatically operated valve? What would be an acceptable start up procedure of the system from cold state?

Start with the control valve in manual and use the hand jack to gradually increase the temperature by throttling the steam flow before changing to pneumatic control.

Start the system up in manual mode and gradually increase the controller output signal until the temperature reaches the required value before changing over to automatic control.

Start the system up in automatic mode with normal set point but with the steam supply to the control valve manually throttled in.

Start the system up in automatic mode with normal set point so that the required temperature is achieved as quickly as possible.

At what temperature should the meat and fish freezers be maintained?

- 20° C

- 25° C

- 30° C

- 10° C

What is the name by which the regulations which prevent and control pollution from ships are known?

The International Shipping Pollution Laws.

SOLAS

MARPOL

The ISP Code.

Which of the following could cause a blowback from a steam boiler oil fired furnace?

Trying to ignite burner from hot brickwork

Having the fuel oil temperature too high

Having the fuel oil pressure too high

Opening air registers too quickly

What is important to wear for all officers and crew when working on the ro-ro deck during loading and discharging?

Rain coat

Gloves

Goggles and safety shoes

Fluorescent vest/ working clothes

What should crew members not assigned to emergency teams, do?

Crew members not asigned to emergency teams should ensure the proper operation of the remote control equipment

Crew members not asigned to emergency teams should be ready to assist the engine-room emergency team

Crew members not asigned to emergency teams should be integrated in the emergency team

Crew members not asigned to emergency teams should prepare survival crafts and render assistance, where required

What percentage of the baggage is required to be checked at Security Level 1?

25-50% of the baggage is required to be checked at Security Level 1.

The percentage is not specified.

100% of the baggage is required to be checked at Security Level 1.

5-15% of the baggage is required to be checked at Security Level 1.

Why is grain bundled?

To prevent it from wetting

To prevent bulk grain from shifting

To aid stability

To compact the cargo

Why should only one set of ballast tanks be filled at any one time on a Bulk Carrier?

To ensure that bending moments do not become excessive

To prevent excessive lists developing

To ensure that free surfaces in ballast tanks do not become excessive during the ballasting operation

To keep the vessel trimmed by the stern

Which of the answers best summarises the information which should be provided for the bridge Officers of the Watch within an effective Voyage plan.

All of the suggested answers

Expected prevailing wind and weather

Contingency arrangements in case of problems

Courses to steer; distance off dangers; parallel index lines; expected currents; prevailing winds; distance between alteration points.

In what circumstances can a ships loading computer be used with confidence on a container vessel.

When the computer has been manufactured by a reputable supplier.

When a new computer with a large RAM has been received.

When the loading computer has been approved by Class.

When the computer has been supplied by the company IT department.

On a RoRo vessel, what must be ensured onboard the vessel prior to commencing cargo?

That all cargo is ready for loading

That the vessel has been cleared by immigration

Cargo hold ventilation systems are operational

You are alongside, 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?

Open the valve to 4 port line as instructed.

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

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.

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.

On the figure 4 possible definitions of the term "CENTRE LINE" are given. Which one is the correct one?

Centre line is given by B on the figure

Centre line is given by C on the figure

Centre line is given by A on the figure

Centre line is given by D on the figure

On the figure 4 possible definitions of the term "BRIDGE" are given. Which one is the correct one?

Bridge is given by B on the figure

Bridge is given by C on the figure

Bridge is given by D on the figure

Bridge is given by A on the figure

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.

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.

During the survey of Long Range Identification and Tracking (LRIT) equipment, which document must be available to the surveyor to demonstrate compliance with SOLAS?

The Certificate of Compliance with SOLAS V/19-1, bearing the serial number of the equipment installation.

A report giving the result of the Performance Test, issued by the manufacturer in compliance with the Flag State Authority requirements.

A report giving the result of the Conformance Test, issued by the Classification Society on behalf of the Flag State Authority.

A Statement of Installation and and Testing by the Approved Service Provider in compliance with SOLAS V/26-4.

When operating a steam boiler burner unit what is the best method for evaluating that the correct amount of excess air is being supplied to the furnace?

The colour of the flame in the furnace.

The reading from the flue gas oxygen analyser

The length of the flame in the furnace.

The colour of the exhaust leaving the uptake.

What is the minimum number of relief valves to be fitted to any cargo tank of greater than 20 cubic meters capacity?

Minimum one pressure relief valve.

The number of relief valves is dependent of type of gas carrier.

At least two pressure relief valves.

Minimum two pressure relief valves in addition to the MARVS.

As part of the decommissioning process for old reefer vessels they are sent to a recycling yard where any refrigerant remaining in the refrigeration system is dealt with. Which one of the actions given in the options needs to be carried out in preparation for delivery of a vessel to a recycling yard?

Discharge the gas to atmosphere prior to arrival to minimise handling costs at the recycling yard.

Make a careful note of the quantities of gas onboard and note this in the Ozone Depletion Record Book prior to discharging the gas into recovery bottles.

Make a careful note of the quantities of gas onboard and note this in the Ozone Depleting Record Book before discharging the gas to atmosphere.

Make a careful note of the quantities of gas onboard prior to arrival at the yard and note this in the Ozone Depleting Record Book.

What is a contingency plan for ships?

Plan for safety preparedness

Loading plan for general cargo

Plan for next voyage

Plan for maintenance and repair

What is the meaning of this symbol ?

Release gripes

Lower lifeboat to water

Lower liferaft to water

Lower rescue boat to water

What is the meaning of this symbol ?

Rescue boat

Lifeboat

Davit-launched liferaft

Liferaft

During which time may watertight doors in watertight bulkheads in tweendeck cargo spaces be kept open in passenger ships?

At any time if watched by an authorized person

Daytime only

During cargo handling only

In ports only

Даний онлайн-тест складається з 90 випадкових питань із тестів CES 5.1 з обраної вами тематики.