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家 在线测试 CES Passenger Deck Support Test online CES 5.1 for Deck department, Support level, Passenger vessel
在线测试： Test online CES 5.1 for Deck department, Support level, Passenger vessel
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该测试由有关选定主题的随机问题组成。
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Fire provokes:
Gases, flames, smoke and heat
Radiation and smoke
Vapours, smoke and flames
Vapours, radiation, gases and flames
*What is the minimum capacity of a ventilation system protecting cargo spaces, other than special category spaces, intended for carriage of motor vehicles with fuel in their thanks for their own propulsion in a ship carrying no more than 36 passengers or in a cargo ship?
2 air changes per hour
20 air changes per hour
12 air changes per hour
6 air changes per hour
Which of the following INMARSAT services provides communications by telephone, telex, facsimile (f, and data?
INMARSAT-A.
Safety NET.
VHF-FM.
INMARSAT-C.
The Urgency Message from a ship is used to notify other traffic of a situation where the ship is not in imminent danger, but where the development of the situation is uncertain and may need assistance in the near future. What is the telephony urgency message like?
RESCUE-RESCUE
SECURITE
PAN-PAN
MAYDAY
When carring a cargo in a tank which not requires any heating, what should be done with the heating coils prior loading ?
The should be blown completely dry by the use of air or nitrogen.
The coils should be blanked.
The should be blown completely dry by the use of air or nitrogen and then blanked.
The coils should be filled with water and blanked.
Who is responsible for the number and the position of any tugs to be used during a mooring operation?
The Master, with consideration of the advice of the pilot
It will be only the wind speed that will determine the required number of tugs and how they are used.
The Port Authority will dictate the tug requirements and their use within the port limits
The Pilot is fully responsible for the number and use of tugs within the port area
The ship is berthed in a steady offshore beam wind of 30 knots which suddenly increases to 60 knots. What will be the change of force exerted on the ship driving it off the jetty?
The force will be Doubled
The force will be Tripled
The force will be Quadrupled
The force will be Quintupled
If you are called upon to reeve a new wire onto a self-stowing winch drum you would, after looking at brake arrangement, reeve it to pay out as follows:
Depends on the lay of the wire strands
Direction B
Direction A
Doesn-t matter which direction
Two vessels are meeting each other in confined waters. What would be the effects of interaction between the two vessels as they approach each other?
The bows of the ships will be sucked together
There will be no effects in these circumstances
Each vessel will experience an increase in speed
The bows of the ships will be pushed away from each other
A ship is turning around a point called the "pivot point". What is the position of this invisible point when the ship is "dead" in the water?
Outside of the center line
Near the bow
About same position as the center of gravity
Near the stern of the ship
The rudder is hard over when steaming at full ahead in shallow water. How much "lift force" remains when the engine is stopped?
About 10 %
About 50 %
There will be lift force remaining
About 80 %
What is understood by the term "Balanced Rudder"?
A rudder with equal rudder area forward and aft of the turning axis, the turning axis being at the geometrical centre of the rudder area
A rudder with part of the rudder area forward of the turning axis, therefore reducing the load on the steering motor.
A rudder which is operated by two steering motors providing equal amounts of thrust to the rudder
A rudder with an additional flap attached the training edge to improve the rudder efficiency
Your vessel is a tanker in ballast and the two vessels are interlocked after collision. You have already made clear that all people are well taken care of and you will try to separate the two vessels. What should be your greatest concern?
If the vessels separate, the other vessel may run away and you will be the only one to blame.
That the separation may cause sparks that can possibly ignite the oil or any other flammable substances.
The exact time of the collision.
That you have your permission from the company to do so.
High Voltage (HV) cables are smaller than low voltage cables for a given power rating. Why is this?
The HV cable uses Aluminium conductors and therefore requires them to be a smaller cross-sectional area.
The HV cable carries a smaller current and therefore requires less copper.
The HV cable uses higher quality copper conductors and therefore requires them to be a smaller cross-sectional area.
The HV cable has a thinner wall of special insulation material.
There are many types of pumps fitted onboard ship which an engine room rating may be required to assist with the maintenance of. Which type of pump is shown in the illustration?
A scroll pump.
A centrifugal pump.
A reciprocating pump.
A gear pump.
What is the function of a sacrificial exchangeable wear plate?
It protects hull plating around the bulbous bow
It protects the hull plating around cell guides
It protects twistlocks against wear down beyond a certain limit
It protects hull plating around the stern frame
Discharge of a frozen cargo is about to start from a conventional reefer vessel. Select, from the options given, the best procedure to follow to ensure good cargo care.
The fans should be run at slow speed for one hour before discharge commences.
The fans should be kept running throughout discharge.
The fans should be kept running after the hatch is open until the stevedores enter the hatch.
The fans should be stopped just before the hatch lids are raised for opening.
Who is responsible for the development of the Ship Security Plan?
The Port Facility Security Officer
The Classification Society.
The Company Security Officer
The Ship Security Officer
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
How much sugar in a cargo of cement would render the cement worthless?
3.20%
1.00%
15.06%
0.001%
Some fresh shrimps have been peeled ready for serving; some salad leaves have been washed ready for the same meal. The meal will not be served for another four hours. What will you do with these ingredients in the meantime?
The shrimps and the salad will be placed in separate containers, covered and placed in the refrigerator until required.
The shrimps will be placed in the refrigerator and the sald placed in cold water, to keep it fresh.
The shrimps and the salad will be placed in separate containers, covered in foil and left on the bench until required.
The ingredients will be combined, seasoned and dressed, transferred to open serving dishes, then placed in the refrigerator until required.
When LNG is used as fuel a double wall piping system must be used in the engine room. What condition should the annular space between the concentric pipes be maintained in when the fuel system is in service?
Filled with nitrogen at a pressure greater than the LNG fuel pressure.
Filled with nitrogen at a partial vacuum.
Filled with nitrogen at a pressure less than the LNG fuel pressure.
Maintained at a full vacuum.
An engine room rating notices that the guard on a running pump is hanging loose due to a missing bolt on the support bracket and it is catching the shaft coupling. What is the best action to take as a repair method?
Place a sheet of metal in front of the guard to deflect any parts that may fly off as a temporary repair.
Inform the watchkeeper so that the pump can be stopped and a new bolt can be fitted to permanently fix the guard in place.
Try and fit a new bolt while the pump is running to permanently fix the guard in place.
Fasten the guard back in place with a piece of rope with the pump running as a temporary repair.
What signal may be given by sound and by light to indicate that a vessel fails to understand the intentions or actions of another vessel, or is in doubt that sufficient action is being taken by the other to avoid collision?
Five prolonged blasts (flashes).
Three short and rapid blasts (flashes).
One prolonged blast (flash), followed by five or more short and rapid blasts (flashes)
Five short and rapid blasts (flashes).
When discussing oil tanker design, what do the letters "VLCC" stand for?
Variable Level Cargo Container
Very Large Crude Carrier
Virtual Loss (of) Cargo Capacity
Very Large Combination Carrier
If a refrigeration system contains air, how would you remove it from the system?
Pump the system down to the condenser, continue cooling water flow until the condenser is at the same temperature as the cooling water and vent off the air from the top of the condenser.
Stop the compressor and vent the air from the crankcase.
Pump the system down to the evaporator and keep the fan running until the evaporator is at ambient temperature and vent off the air from the top of the evaporator.
Stop the compressor and undo a pipe coupling at the highest point in the system to vent off the air.
To allow efficient pumping of aromatic Crude Oil cargoes, they are usually heated to reduce their viscosity. What is the ideal maximum viscosity that is normally achieved for this purpose?
250 cSt (250 mm2/s)
450 cSt (450 mm2/s)
45 cSt (45 mm2/s)
1,250 cSt (1,250 mm2/s)
According to most industry standards, what percentage of oxygen by volume is required for entry into an enclosed space without a breathing apparatus?
11%
17%
21%
15%
What is the most important task after carrying out any major overhaul on a diesel engine?
A thorough check inside the engine to make sure all tools and cleaning rags have been removed.
Start the engine to check the direction of rotation.
Start the auxiliary blower to ventilate the engine so that it has sufficient fresh air for starting.
Repair any damaged paint work on the engine.
The vessel is steaming off the coast when the engine room informs the bridge it must stop engines immediately. Shortly afterwards they informed the bridge they would need a least three hours to fix it. Which of the following actions would be the most suitable taken by the bridge?
Display the NUC signal, maintain the watch and determine how the ship is drifting and the probable position after three hours.
Display the NUC signal and keep a good lookout
Display the NUC signal, maintain the watch and ask the Engine room to be a quick as possible
Display the NUC signal, maintain the watch and wait for further developments.
Can a ZENER BARRIER be installed in a hazardous area?
Yes, that's what the zener barrier is made for.
Only in equipment operating on very low voltage.
No, as only the output from the barrier is intrinsically safe this is not allowed.
Only if properly marked for such installation.
What would rolling indicate, on a vessel loading logs on deck?
Increasing capsizing moments
The onset of synchronised rolling
An approaching angle of loll
Zero GM
A sudden or gradual decrease in the pH-value, or an increase of the sulfate content, in the cooling water may indicate:
Leakages from seawater coolers
Leakages from L.O. coolers.
Exhaust leakage
High concentration of corrosion inhibitors
On the figure 4 possible definitions of the term "AHEAD" are given. Which one is the correct one?
Ahead is given by C on the figure
Ahead is given by B on the figure
Ahead is given by A on the figure
Ahead is given by D on the figure
The pumping and piping arrangement for a chemical tanker constructed after 1st January 2007 and carrying substances of categories "X", "Y" or "Z" must ensure that the maximum quantity of residues retained in a cargo tank and its associated piping must not exceed which of the following amounts?
300 litres.
100 litres.
75 litres.
10 litres.
Which of the options represents the best action to take when an item of machinery, which normally operates in automatic mode, is operated in 'manual' mode?
Have someone permanently stationed at the machine in case of an operational problem.
Keep the Chief Engineer informed of machines performance on an hourly basis.
Change over all other machinery to manual mode of operation.
Monitor the operation of the machinery on a frequent basis.
With two alternators running in parallel, you wish to disconnect one. The first step is to:
Make sure the load is evenly shared
Trip the main circuit breaker
Remove the load from the alternator to be stopped
Increase the frequency on the switchboard
What do international and national maritime authorities say about passenger list?
All passengers onboard must be registered with name, age and cabin number.
No requirement to have passenger list onboard as long as shore terminal/office have one, and can send it to the ship on request.
Optional for each company if they want to have passenger and crew list.
All personnel onboard (crew and passengers) shall be registered in order to keep track of total number of person on board
In a crisis, which crew behaviours are most reassuring to passengers?
keeping up with safety knowledge
enthusiasm, confidence, hospitality
dependability
enthusiasm, confidence, decisiveness
How will continuous low load operation influence the time between overhauls, tbo, for the cylinder covers and associated valves of a 4-stroke diesel engine?
Reduce the time between overhauls due to increased fouling.
Increase the time between overhauls since fuel injectors work better at low load so combustion will be improved and the maintenance will be reduced.
Increase the time between overhauls since the engine is not working as hard.
No influence at all, the required overhauls are unaffected by operating load.
What is the principal ingredient in Risotto?
Pasta.
Seafood.
Rice.
Green vegetables.
A cellular container vessel is to load frozen ice cream in containers. Space is available either in the hold or as a deck stow. Select, from the options given, the most suitable stowage position, with the reason, for this cargo.
The deck stow as it is more accessible for checking the status lights on the reefer panel.
The hold as it is more accessible for maintenance and repair in the event of a mechanical problem.
The deck stow as it is less sensitive to temperature in the event of a mechanical problem.
The hold as it is more sheltered from the effects of bad weather.
Drip trays are provided in way of the cargo manifold on the vast majority of LNG carriers. What is the main purpose of having this drip tray?
To minimise cargo losses during disconnection of hard arms at completion of loading and discharging.
To allow blanking plates and fastenings to be stored ready for fitting after disconnection of hard arms.
To minimise the risk of pollution in the event of a minor spillage during disconnection of hard arms.
To minimise the risk of extremely cold cargo from spilling onto the deck, which may damage the ship's structure, when disconnecting hard arms.
What should a duty crew member do if he observes stevedores smoking in ‘no smoking’ areas?
Immediately inform the stevedore foreman and duty officer
Immediately inform the chief officer
Immediately inform the master
Wait to inform the relieving duty crew member
What will you do when all the fresh water in the survival craft is finished or about to finish?
Use sea water to keep your body wet
Start collecting rain water
Drink Sea water
Drink only 1 liter of sea water per day
What is the meaning of organic chemistry?
Organic chemistry is substances that contain hydrocarbons and oxygen.
Organic chemistry is substances that do not contain of hydrocarbons.
Organic chemistry is substances that contain hydrocarbons.
Organic chemistry is substances that contain of hydrocarbons, nitrogen and oxygen.
During loading of bananas the fruit should be visually inspected frequently to check the quality and for any indications as to its physiological development. Which one of the options given would indicate that the fruit is in suitable condition for shipment?
The bananas are green with a yellow hue. They are not really hard and do not break cleanly.
The bananas are green in colour with patches on the shoulder from the effects of sunshine and have relatively sharp ridges along the length. They can be snapped with sap clinging to the broken parts.
The bananas are yellow with small black spots on the skin. They cannot be snapped but the skin can be peeled off.
The bananas have a uniform green colour with relatively sharp ridges along the length. They can be snapped or broken with sap clinging between the broken parts.
What is the correct range for the pH-value for the water in an oil fired steam boiler?
Below 4,5
7 - 9
4,5 - 7.
9 - 11.
Which Convention placed on the shipowner an obligation to exercise due diligence to make a ship seaworthy, requiring him "before and at the beginning of a voyage…to….make the ship seaworthy…and…make the holds...and all other parts of the vessel in which goods are carried, fit and safe for their reception, carriage and preservation"?
The Paris Memorandum.
The Hague-Visby Rules.
The Antwerp Convention.
The Nassau Protocol.
What roll amplitude is generally used by classification societies in calculating rolling forces?
24 - 30 degrees
18 - 24 degrees
37 - 42 degrees
30 - 36 degrees
When we are measuring temperature with a thermistor, the type of sensing device is:
Temp sensitive semi-conductor
Junction of two dissimilar metals
Capacitance probe
Platinium wire resistor
Thermocouples are often used for measuring temperatures. Which of the following descriptions are valid for a thermocouple?
A junction between two dissimilar metals generates a small voltage.
A semi-conductor device that exhibits a negative coefficient of resistance with temperature.
A resistance device that exhibits a positive coefficient of resistance with temperature.
A quartz crystal that changes its resonant frequency with temperature.
Where would you look to find details of the crude oil washing system, its equipment and operating procedures? ,
The Operations and Equipment Manual (COW Manual).
MARPOL 73/78.
The Oil Record Book.
The ODME Manual.
In the ISGOTT Guide, petroleum products are divided into two general groups for the purposes of indicating flammability, based on flashpoint and vapour pressure. These two groups are named 'Volatile' and 'Non-volatile'. To be considered Non-volatile, which of the following criteria must be met?
With a Flashpoint of 60 degrees C or above (open cup method), these liquids produce, when at any normal ambient temperature, equilibrium gas concentrations above the Upper Flammable Limit.
With a Flashpoint of 60 degrees C or below (closed cup method), these liquids produce, when equal to or below any ambient temperature, gas concentrations of less than 5% by volume.
With a Flashpoint of 37.8 degrees C or above (open cup method), these liquids produce, when at any normal ambient pressure, equilibrium gas concentrations below the Lower Flammable Limit.
With a Flashpoint of 60 degrees C or above (closed cup method), these liquids produce, when at any normal ambient temperature, equilibrium gas concentrations below the Lower Flammable Limit.
For a low pressure boiler, after testing the water cloride level, it is found to be 500 PPM, what action would You take?
Do nothing.
Increase dosage.
Decrease dosage.
Blow down boiler and check condenser for leakage.
What is done at a Quadrennial Thorough Survey?
Derricks are tested and parts of derricks thoroughly examined
Deck cranes are tested and their parts thoroughly examined
Deck cranes are tested
Derricks are tested
The Chief officer of a General Cargo Vessel has instructed that ballast tanks must not be allowed to overflow when ballasting alongside. Which of the following is of the greatest concern?
Overflowing ballast water running over side and onto quay resulting in possible damage to shore equipment
Ballast water flowing back into dock
Over pressurising the tank top
Tanks being filled incorrectly
What is the recommended method of identifying galley utensils, such as knives, chopping boards and containers, that are dedicated to the preparation of specific types of food?
All galley utensils can be used for the preparation of any foodstuffs, so there is no need to dedicate or identify them in any way.
By making only one person responsible for issuing all utensils and tools in the galley.
A standard colour coding system.
By storing them in individual drawers or lockers.
What is the requirement for a stability booklet covering bulk carriers that carry cargoes other than grain?
It must be written in a language understood by the crew
If written in a language other than English the vessel must also carry a booklet written in the English language
It must be written in a language understood by the ship’s cargo officers
It must be written in English with electronic versions in French, Spanish, Russian and Chinese
What is a Declaration of Security?
A checklist jointly completed by the Ship Security Officer and the U.S. Coast Guard
A document stating the ship’s security level
A document between the port and the cargo owner stating security
A checklist jointly completed by the ship and shore security representatives
What do you understand by: Bitter end?
Bitter end means: a foul taste at the end of a meal
Bitter end means: to the very last moment
Bitter end means: the toggled end of a lifeboat painter
Bitter end means: the end link of an anchor cable that is secured within the chain locker
Which of these weapons are widely available and commonly used by criminals and terrorists to further their aims?
Liquid explosive
Gun
Vehicle borne device
Incendiary device
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.
Who will verify the computational results and actual ship data used by the calculation program on a vessel's stability computer?
The master.
The manufacturer.
The Classification Society.
The engineer attending the installation and initial on-site testing.
After discharging a high density cargo a serious crack is found in an upper ballast tank amidships of a Bulk Carrier; what must the Master do?
Note the dimensions of the crack and measure regularly
Proceed on ballast voyage without ballast in this tank
Repair with cement box or temporary welded patch until next drydock
Inform Designated Person Ashore (DPA) and call in Classification Society
In a diesel engine lubrication system the circulating pump pump normally takes suction from the oil sump tank. Where does the oil pass to directly after the pump?
Main thrust bearing.
Lube oil cooler.
The engine bearings.
The lub oil purifier.
What must duty crew members ensure so that ro-ro units are not damaged on board?
Units must be driven at a safe speed
Units must not be driven in poor lighting conditions
Units must not be driven over ‘D’ rings
All on-board safety signs must be intact
On a Container vessel, what is 'defrosting' associated with?
Reefer containers
Containers carrying IMDG cargoes
Dry cargo ventilated containers
Fan containers
To prevent inadvertent leaks, bunker manifold not in use should:
Have blank flanges fitted and tightened with some bolts in place
Have blank flanges fitted with gaskets and tightened with all bolts in place
Have blank flanges fitted with gaskets and tightened with some bolts in place
Have blank flanges fitted and tightened with all bolts in place
From the options given, select the one which controls the effective delivery stroke of a helix type fuel pump for a diesel engine to increase or decrease the quantity of fuel delivered.
The booster pump
The fuel injector
The fuel master control valve
The governor
Which electronic component or system of components is this graphical symbol illustrating ?
Battery charger
Auto transformer
Inverter
Low pass filter
The circuit diagrams illustrate four different methods of wiring between a Pt 100 temperature sensor and its signal processing electronics. Which of the wiring methods gives the best measuring accuracy?
Figure 2
Figure 1
Figure 4
Figure 3
When are ro-ro units most exposed to damage?
When being manoeuvred for stowage or breaking out of stowage
When turning corners
When being driven up or down the vessel’s internal ramps
When being driven up or down the loading ramp
When should a spreader be used for general cargo operations?
When the weight of a load needs to be evenly distributed by the lifting gear
When the length of a load is such that slinging it will create unacceptable bending moments
When the length of a load is such that slinging it will create sagging
When handling open-top containers
For what purpose do we have booster pumps on the cargo discharge line?
To increase discharge rate.
To reduce the flow and pressure to shore line.
To increase discharge pressure and reduce the cargo temperature.
To increase discharge discharge line pressure above shore back pressure.
On a conventional reefer vessel is possible to ventilate the cargo spaces with fresh air using fans and trunkings. One of the reasons for using fresh air ventilation is to control the relative humidity within the cargo space. Select the option which best completes the following statement. "It is beneficial to be able to control the relative humidity within the cargo space because fruit cargoes should be kept…
…relatively moist to avoid the cargo dehydrating during the passage."
… relatively dry to avoid the formation of fungus in the vent trunkings during the passage."
…relatively dry to avoid deterioration of the packaging during the passage."
... as dry as possible to avoid build up of mould during the passage."
What advantages do you see by conducting passenger muster’s. Drill’s are mandatory for international voyage’s.
The passengers get to know the way around the ship.
The Passengers get familiar with lifejacket and location of muster station
Giving the company a good image for the public, and the crew get training.
The passengers get familiar with emergency procedures, life jackets, musterstation. And the crew get training in growd handling.
The fire integrity of any bulkhead shall be maintained
At the openings and penetrations
Only at the continuous/solid part of the bulkhead
Don't know
Up to 5 meters above the deck level
What should be done if the surface of the loading ramp is oily?
Immediately clean the oil-affected area(s)
Allow cargo operations to continue in the usual manner
Stop cargo operations and inform the master
Wash the oil-affected area(s) using a fire hose
What means of communication shall be provided to each member of the fire patrol?
Telephones in public spaces
Emergency telephones and Public Address system
A two-way portable radio
A mobile telephone
What do you understand by the term Maximum Continuous Rating, MCR, of a diesel engine?
The maximum load that the engine can operate at continuosly.
The maximum cylinder pressure that the engine can operate at continuously.
The maximum charge air pressure that the engine can operate at continuously.
The maximum speed that the engine can operate at continuously.
Which of the following statements is correct?
Hot rolled steel coils must not be loaded in a rusty condition
Hot rolled steel coils may be loaded in rain
Hot rolled steel coils must never be loaded in rain
Hot rolled steel coils are always shipped in stainless steel envelopes
What precautions should you take when washing down the galley area at the end of the working day?
All power to the galley range and other electrical equipment should be switched off and isolated; ensure you are suitably and safely dressed to avoid electrical, slipping and other hazards.
All electrical equipment should be switched on, to ensure it dries out quickly if it gets wet; remove your catering clothing, so that it does not get dirty and wet.
Wash only the deck, to avoid any risk of shock from electrical items, such as the range; wear shorts and rubber sandals ("flip-flops") to avoid transferring contaminants from your work clothes.
Cover all equipment and work benches with plastic sheeting; wash the galley deckhead, then work down the bulkheads and finally the deck, with fresh water above 65 degrees Celsius; wear heavy duty work clothes.
The brine used to salting or curing meat contains nitrites. What effect do the nitrites have on the meat?
They increase the preservation time of the meat more than rolling in solid salt crystals
They add a more natural salt taste to the meat than obtained by seasoning after cooking
They reduce boiling time
They make the meat take on a reddish colour after preparation
In respect of exposure to vapours from oil cargoes, how is the value of "Short Term Exposure Limit" determined?
The airborne concentration of a toxic substance averaged over any 25 minute period, usually expressed in ppm.
The airborne concentration of a toxic substance averaged over any 30 minute period, usually expressed in ppm.
The airborne concentration of a toxic substance averaged over any 10 minute period, usually expressed in ppm.
The airborne concentration of a toxic substance averaged over any 15 minute period, usually expressed in ppm.
What name is given to the pickled, fermented vegetable condiment that accompanies almost every Korean dish?
Korchee.
Kebchee.
Kalachie.
Kimchee.
When preparing to ballast the double-bottom tanks of a General Cargo Vessel, which of the following must be done?
All tanks ballasted at the same time
All cargo operations completed
The Chief Officer's ballast plan followed exactly
Ensure that the vessel is kept on an even keel throughout the operation
What special design feature is attributed to pure car carriers?
A small GM when fully loaded
Bow doors
A stern ramp
A very large windage area
When it is midsummer in northern Europe, what time of the year is it in South Africa?
Midsummer
Autumn
Midwinter
Early spring
How would you know how many people a lifeboat is supposed to hold?
Ask one of the deck officers
No fixed number as it depends on the people-s size
The number of persons should be clearly stated on the outside of the boats bow.
Fill the boat up until no more space is left.
该在线测试包含来自 CES 5.1 测试的 90 道随机问题，涉及您选择的主题。