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在线测试： Test online CES 5.1 for 3rd-Eng/4rd-Eng
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该测试由有关选定主题的随机问题组成。
问题 1 从 90
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What is the name given to a devastating explosion that may occur when a rigid container containing a liquefied gas is exposed to a very high *temperature?
SLOP-OVER
BLEVE
FLASH-OVER
BOIL-OVER
*Which of the following instructions will generally be given by a port authority to allow welding or hot work in a cargo tank of a tanker ?
Before the tank is entered, lifeline, rescue harness and compressed air apparatus shall be ready at the relevant hatch
All answers are good
All results of gas measures and examinations shall be entered in the ship's deck log
Non-adjacent, partly filled slop tanks shall be emptied prior to the working period
*In general, which of the following is the maximum length of a main vertical zone?
20 meters
40 meters
The ship-s breadth
The ship-s length
Sanitary-, ballast-, bilge- or general service pumps may be accepted as fire pumps provided: (SOLAS II-2/4.3.2)
They are ready for use as fire pump at any time
They can be started from a position outside the engine room
They are not normally used for pumping oil
They are fitted with automatic start connected to the fire alarm
Apart from red, what other colour is frequently used for a CO2 extinguisher?
Yellow
Green
Black
Light blue
In addition to cargo & machinery spaces, which other spaces, if any, have to be fitted with an approved fixed fire fighting system on General Cargo ships?
Paint store
Rope store
No additional fixed systems are required.
Focsle store
What is the correct location of portable fire fighting equipment during loading/discharging operations?
On the forecastle and poop deck?
One fire hose and one powder extinguisher forward of the manifold area?
One fire hose forward and aft of the manifold, and portable fire extinguisher near to ships manifold?
Not necessary to locate portable fire fighting equipment near to the manifold?
The greatest limitation of the fixed pressure water-spraying fire-extinguishing systems is a danger of
Stability reduction on ships with several decks
Overflowing
All answers are good
Stability reduction on ships with single deck
Why is line blowing/pigging from shore a very critical operation ?
Because the cargo hose/loading arm may burst.
Because the pig may be able to get on board.
Because serious structural damage and overflow can be caused by the creation of pressure in the shore tanks during this operations.
Because serious structural damage and overflow can be caused by the creation of pressure in the tanks during this operations.
A casualty suddenly loses consciousness and falls to the ground letting out a strange cry. The pasient is red-blue in the face and froth may appear around the mouth. You are witnessing a major epileptic attack. What should you do?
Loose tight clothing, ask all unnecessary bystanders to leave and carefully place something soft under the head. If casualty is unconscious, place the person in Recovery position.
Move the casualty in a sit-up position and put something in the persons mouth to protect the tongue.
Give the casualty a lot to drink and keep talking to the person at all times.
Forcibly restrain and try to wake the casualty.
You are on a vessel 15 nautical miles off the coast of Nigeria, West Africa. Are you allowed to dump food waste overboard?
No, food waste can not be dumped overboard
Yes, the food waste can be dumped if it is ground so that the resulting particles can pass through a screen with 25 mm openings
Yes, the food waste can be dumped if it is ground so that the resulting particles can pass through a screen with 50 mm openings
Yes, all kind of food waste can be dumped overboard
In which areas is plastic material accepted for overboard disposal?
In coastal waters.
In specially designated areas (ref. MARPOL).
Not permissible any where.
100 n.m. from shore line.
When cross-flooding arrangements to correct unsymmetrical flooding and excessive heel angels in damaged condition are installed in passenger ships, what is the maximum time allowed for equalization?
15 minutes
30 minutes
20 minutes
10 minutes
Who is responsible for maintaining the vessel's structural strength?
The flag state administration.
The master.
The classification society.
The management company.
Give the meaning of the following symbol
CO2 horn
CO2 battery
Portable fire extinguisher
Area protected by CO2
You are drifting in open sea with a loaded VLCC, and you observe that the drift is SSE. Will the drift direction be the same for ballast condition?
Yes, it will be the same
In ballast condition the drift will be more to the east
No, drifting in ballast condition may be quite different
Loaded or ballast conditions have no effect on the drift
The usual range of a VHF radio-set from ship to ship at sea is:
2 Nautical Miles
200 Nautical Miles
10 Nautical Miles
20 Nautical Miles
What is most important when preparing for emergencies?
That people listen to orders given.
That people are well trained.
That people know where to find designated equipment.
That people know where to muster.
Give the meaning of the following symbol:
muster station for lifeboat
lifeboat
muster station for rescue boat
rescue boat
Give the meaning of the following symbol:
liferaft
inflate liferaft
davit launched liferaft
lower liferaft to water
A ship in distress should transmit the appropriate alarm signal followed by the distress call and message on one or all of the international distress frequencies. Which of frequencies is in accordance with the present recommendations?
550 kHz, 2182 kHz and 121.5 MHz
500 kHz, 2182 kHz and 156.8 MHz
550 kHz, 2367 kHz and 121.5 MHz
500 kHz, 2367 kHz and 243 MHz
Which among the following list is particularly required for a totally enclosed lifeboat ?
windows on both sides can be closed watertight and opened for ventilationc
access hatches which can be closed watertight
self-bailing arrangementsd
handrails inside for persons moving to their seats
Which item among those below is included in the normal equipment of every rescue boat ?
a sea-anchor with a hawser of more than 10m in length
anti-seasickness medicine sufficient for at least 48h and one seasickness bag for each person
a food ration for each person as
Which item among those below is included in the normal equipment of every liferaft ?
one searchlight which can work continuously for not less than 3 hours
two painters of a length equal to not less than the distance from the stowage position of the liferaft to the waterline
one boat-hook
instructions on how to survive
Which one of the listed requirements regarding liferaft equipment do not correspond to present regulations? The normal equipment of every liferaft shall consist of:
instructions for immediate action
one set of fishing tackle
instructions on how to survive
thermal protective aids for the number of persons the liferaft is permitted to accommodate
What is the meaning of this symbol ?
Lower rescue boat to water
Lower liferaft to water
Lower lifeboat to water
Release gripes
The rescue quoit of a liferaft is attached to a buoyant line whose length is at least:
5 m
50 m
30 m
10 m
Give the meaning of the following symbol
EPIRB
Radar transponder
Survival craft distress pyrotechnic signals
Rocket parachute flares
What is the meaning of this symbol ?
Rescue boat
Lifeboat
Liferaft
Davit-launched liferaft
The muster list shall show the duties assigned to the different members of the crew. Which of the given duties do not necessarily have to be included in the muster list?
Muster of passengers
Manning of fire parties assigned to deal with fires
Preparation and launching of survival crafts
Clearing escape routes
Fast rescue boats shall be capable of carrying:
10 Persons
At least 5 seated persons and a person lying down
At least 6 persons seated
3 Persons
Why are Chromate Based Cooling Water Treatments not allowed when the system is connected to a fresh water generator?
It increases the chloride level.
It could poison the fresh water if leakage occurs.
Chromate Based Cooling Water Treatments are not allowed in any cooling water system.
It reacts with metals used in the fresh water generator.
Which of the following statements is correct?
The first row of steel coils can be loaded directly onto the tank top
The first row of steel coils need not be supported by wooden wedges
The first row of steel coils must be loaded on dunnage laid athwartships
The first row of steel coils must be loaded on dunnage laid fore and aft
What is shown in the attached image?
The attached image shows derricks
The attached image shows deck cranes
The attached image shows grabs attached to deck cranes, during cargo opertions
The attached image shows grabs attached to derricks, for cargo opertions
When first using cleaning agent in the machinery space, the crew should:
Confirm that it won't form an emulsion
Use it sparingly
Use it liberally
Confirm that it will form an emulsion
International regulations require that a a minimum pressure of Inert Gas is maintained at all times in slop tanks if slops are retained onboard an oil tanker. Which of the following is that minimum requirement?
10 mm/water gauge.
1000 mm/water gauge.
100 mm/water gauge.
750 mm/water gauge.
Strawberries are a sensitive cargo with a relatively short carriage life and can only be carried on short sea passages. They are often irradiated for transport. Select the true statement from the options given relating to the effect of irradiation.
A cargo of irradiated strawberries must be stowed well away from the crew accommodation to reduce the possible effects of cobalt 60 radiation.
The main effect of irradiating strawberries prior to transport is that it kills off any bacteria on the fruit.
The main effect of irradiating strawberries prior to transport is that it improves the colour of the fruit.
The main effect of irradiating strawberries prior to transport is that it kills any flies on the fruit.
Gas welding is carried out in the work shop. Prior to lunch break the following precaution is carried out:
No precautions are taken
One of the ratings is left "on watch" during the lunch break.
The main supply valves in the deck storage are closed prior to switching to UMS-mode
The local acetylene/oxygen valve in the work shop is closed prior to switching to UMS-mode
During maintenance work in the engine room or on deck it is often necessary to work aloft (work at a height above the plates or the deck). When working aloft onboard the ship what is the most important safety precaution that should be taken?
Lash the bottom of the ladder to a fixed point.
Wear a safety helmet and goggles.
Keep all the tools required for the work in a bucket.
Wear a safety harnes securely attached to ship's structure.
There are strict rules governing the placement and category of electrical equipment allowed in certain areas of liquefied gas carriers. One such category is that of flameproof enclosures. What is a flameproof enclosure?
One in which the equipment has such low electrical power that there is insufficient energy to ignite a flammable mixture and cause a flame.
One which can withstand the pressure build-up during an internal ignition of a flammable mixture and is designed to cool any flames occurring within the enclosure to below the ignition temperature.
One which is filled with inert gas to prevent formation and possible ignition of a flammable mixture.
One which is maintained under positive pressure so preventing the formation of a flammable mixture.
Which of these statements about drug smugglers modes of operating is true?
An organized conspiracy usually smuggles a small amount of drugs.
"Drugs smuggled by an organized conspiracy are usually concealed in a primary ship system such as the engine room or in a tank, void or compartment."
Individual entrepreneurs usually smuggle large quantities of drugs.
Drugs hidden by individual entrepreneurs are usually difficult to detect.
How many rescue boats should be provided on ro-ro passenger ships of 500 gross tons and above?
None providing the ship has lifeboats
One Fast Rescue Boat
Two Fast Rescue Boats, one on each side of the ship
Two, and at least one of the rescue boats shall be a Fast Rescue Boat
On a RoRo vessel, what are sea sloshing forces proportional to?
The overall breadth of deck cargoes
The maximum breadth of under-deck cargoes
The maximum height of under-deck cargoes
The overall height of deck cargoes
Indicate the correct name for the part marked on the sketch:
Crankshaft
Turbocharger
Air cooler
Cylinder head
What do you understand by: Hydrographic vessel in position…….wide berth requested?
This means: the hydrographic vessel is providing a wide berth
This means: the hydrographic vessel wishes to go alongside a wide berth
This means: the hydrographic vessel is very wide
This means: keep well clear of the hydrographic vessel in position………
On a RoRo vessel, why should there be no more than two lashings secured to any one point on a ro-ro unit?
Because the vehicle securing point is likely to break in heavy weather
Because the vehicle itself is likely to tip over during heavy weather
Because the securing forces will not be evenly distributed
What does the 1 Engineer want to have done?
He wants the feed water tank inspected
He wants the Fitter to Check the CO 2 equipment
He wants the feed water tank cleaned
He wants the heating coils inspected
Which of the following is an oval-shaped, purple coloured vegetable, with white, spongy flesh, native to tropical Asia but popular today in Mediterranean cookery?
Asparagus (asperge)
Angelica (dang-gui)
Artichoke (carchofas)
Aubergine (brinjal)
You are carrying a bulk cargo of Phosphoric Acid. Which components of the cargo pumps may be damaged as a result of discharging this particular cargo and why?
The cargo seals may be damaged from the abbrasive effect of any sediment.
The valves in the associated piping may be distorted by pressure surges created by cavitation as the acid is discharged.
The outer casing may be corroded by the unstable impurities within the acid.
The impeller veins may be damaged as a result of the relatively high density of the cargo if the pumps are run at too high a speed.
Fully pressurised ships are fitted with type "C" tanks. What is the normal design pressure?
Design pressure of about 12 barg
Design pressure of about 2 barg
Design pressure of about 15 barg
Design pressure of about 18 barg.
Is it required to have full secondary barrier on spherical Type "B" tanks?
Yes, and the secondary barrier must be able to contain tank leakage for a period of 15 days.
Yes, if the tank is not crack propagation resistant.
Yes, it is required to have full secondary barrier.
Only partial secondary barrier required.
Which plan shows the position of the vertical and longitudinal centres of gravity for each cargo compartment of a Bulk Carrier?
Shell expansion
Line drawing
Vessel stability book
Capacity Plan
What would you do if you saw a container being damaged during loading operations?
Note the date and time of occurrence, container number and if possible take photographs
Call the duty officer
Inform the relieveing watchkeeper
Inform the master
Spray painting has been carried out in the engine room while the engine was running, and the turbocharger intake filter was not protected. Which one of the options given is most likely to result from this?
Scavenge air pressure lower than normal.
Exhaust gas temperatures lower than normal.
Scavenging air pressure is higher than normal
The revolution of the turbocharger lower than normal.
Why is burlap used to cover the bilge perforated plates?
To prevent small particles of cargo draining into the bilges
To protect the plates from stevedore damage
To prevent drainage into the bilges
To allow water and large particles of cargo to drain into the bilges
Jim
g
d
a
h
A non-reversing medium speed diesel engine is used to drive a controllable pitch propeller through a pneumatic clutch and reduction gearbox. The engine has been tested and brought up to operating temperatures on engine control. Which of the options given would be the preferred status of the engine and associated equipment when it is handed over to bridge control?
Engine stopped with clutch disengaged and propeller in zero thrust position.
Engine running, clutch disengaged, propeller at zero thrust.
Engine running with clutch engaged and propeller in ahead position.
Engine stopped with clutch disengaged and propeller at zero thrust.
What is the main reason for crewmembers to practice search and rescue operations on ships in an emergency?
Passengers may not hear the alarm bells, and they may not know that they should proceed to mustering stations.
Passengers seek safety in mustering stations, or other common areas, where they think they can escape danger.
Passengers seek safety in their cabins, or in other places onboard, where they think they can escape danger.
Passengers may not hear the public address system, and they may not know that they should proceed to mustering stations.
This figure shows a transformer, with two windings, N(1) = 2000 and N(2) = 1000 turns, on a common magnetic circuit. Assume that there is no energy loss in the transformer itself. Calculate the current I(2) when the current I(1) = 2 A.
I(2) = 8 A
I(2) = 2 A
I(2) = 1 A
I(2) = 4 A
On the figure 4 possible definitions of the term "FORWARD" are given. Which one is the correct one?
Forward is given by B on the figure
Forward is given by C on the figure
Forward is given by A on the figure
Forward is given by D on the figure
The reporting of incidents involving harmful substances and / or marine pollutants is regulated under which international guidelines?
Protocol I of MARPOL 73/78.
The UN Convention on the Reporting of Accidents and Incidents which Present a Hazard to the Marine Environment 2004.
Appendix B of the Supplement to the IMDG Code.
Annex II to SOLAS 1974.
What is the approximately efficiency of the ejector?
The ejector's efficiency is between 60% and 70%.
The ejector's efficiency is between 30% and 40%.
The ejector's efficiency is between 70% and 80%.
The ejector's efficiency is between 20% and 30%.
You are in charge of discharging and crude oil washing a crude oil carrier.What is the maximum allowed oxygen level in the Inert Gas supply to a tank being crude oil washed (IMO)?
10%
5%
3%
8%
Why do Bending Moment (BM) curves sometimes differ between the loading manual and loading computer?
Because BM values in loading computers are often taken at the bulkheads whereas loading manuals calculate stresses at intermediate points as well
Due to the age of a vessel
Because BM values in loading manuals are often taken at the bulkheads whereas loading computers calculate stresses at intermediate points as well
Due to steel replacements made during the life of a vessel
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?
The shallow water reduces the effectiveness of the rudder and when the vessel stops any applied rudder will become suddenly more effective.
The vessel stopping shifts the pivot point forward and creates a turning moment and results in the ship swinging towards the bank.
The hydrodynamic interaction effects from the banks of the shallow water channel acts on the stern causing the vessel to sheer strongly
The large volume of water dragged behind the vessel continues to move forward and cause a strong turning moment on the stern of the vessel
On a RoRo vessel, what is important with regard to a loading ramp resting on a jetty?
The position of mats between the ramp flap and jetty must be maintained at all times
Visitors must not be allowed access to the vessel via the ramp
The ramp's position must be maintained
It must not foul the ship's mooring ropes
What is the meaning of “remote mode” related to a slave controller?
The slave controller can be tuned by a hand carried remote controller
The slave controller can be in any mode of operation
The slave controller can be tuned from the engine control room
The slave controller receives the set-point from the output signal of the master controller
The engine RPM drops because of:
Fuel oil pipes or filters are clogged.
High lubricating oil temperature.
Leaking exhaust valves.
Bad fuel oil quality.
What is the required capacity of the inert gas plant?
At a rate of at least 125% of the maximum rate of discharge capacity.
At a rate of at least 150% of the maximum rate of discharge capacity.
At a rate of at least 135% of the maximum rate of discharge capacity.
Sufficient to avoid negative pressure in cargo tanks.
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 meaning of the term “Span” of a transducer
The length between the connecting flanges
Type of standard output signal according to ISO
The maximum output signal when you have a minimum process value
The difference between maximum and minimum measurement that gives a standard output signal
With which particular form of food poisoning are cream-filled confectionary items particularly associated?
Clostridium botulinum
Salmonella enteritidis
Staphylococcal enterotoxin
Norwalk gastrointestinal virus
In the diagram, which letter is indicating the position "MIDSHIPS"?
Midships is indicated by B, in the figure
Midships is indicated by D, in the figure
Midships is indicated by A, in the figure
Midships is indicated by C, in the figure
What precaution must be taken when discharging crepe rubber?
There should not be bales outside a sling adhering to bales inside it
Derricks must not be used to discharge this cargo
Bales must not be dragged into the hatch square from the wings
Each bale must be discharged independently
Who should operate ships' ramps, car platforms, retractable car decks and similar equipment?
All crew working on ro-ro deck.
Only the ships' officers.
Only competent persons authorised by a responsible ships' officer, in accordance with the company's work instructions.
Bosun and the loading officer
Why should you wear your catering uniform and not your ordinary clothes in the galley?
Catering clothing will absorb body odour more effectively than other clothing.
If you do wear your ordinary clothes in the galley, food odours will be transferred to your cabin and germs may be transferred into the galley from less hygenic areas.
If you do wear your ordinary clothing in the galley, it will be difficult for visitors or new crewmembers to identify the cook.
Clothing worn in the galley cannot be washed with any other clothing.
Fast rescue boats shall be stowed and kept in a state of continuous readiness for launching:
By 6 persons
In less than 5 minutes
By assigned crew in less than 15 minutes
In less than 10 minutes
During loading of palletised, chilled, perishable goods it starts to rain heavily in the port area. Some of the cargo pallets have been placed on the quay ready for loading. Select, from the options given, the best course of action to be taken to minimise any damage to the cargo.
Return the cargo to the cooling sheds until the rain ceases.
Shift the cargo to a position where there is overhead shelter.
Shift the cargo onto the deck and cover with a waterproof sheet.
Cover the cargo with a waterproof sheet.
When will a hatch pontoon’s side cleat need replacement?
When the cleat retainer is rusty
When the rubber washer is compressed and hardened
When the cleat retainer is distorted
When the cleat has sprung open at sea
On a RoRo vessel, what must you ensure where the cap of a sounding pipe is flush with a ro-ro deck?
Sufficient vertical clearances between the sounding pipe cap and cargo lashings
Prohibit all cargo stowage around this area
Prohibit the stowage of general cargo around the area
Prohibit the stowage of wheeled cargo around the area
While on boiler watch in the engine room a rating is requested to assist with taking on stores. The task will take about half an hour. What should the rating do?
Just ignore the request to assist with the stores.
Go and help with the stores but go back and check the boiler every 10 minutes.
Raise the boiler water level above normal to make sure there is sufficient water while he is busy with the stores.
Contact the engineering officer of the watch for permission to assist and to arrange a relief for the duration of the store taking.
Where should water level detectors be fitted on bulk carriers?
In the ballast hold
In each cargo hold
In alternate cargo holds
In the foremost cargo hold
In most colour coding systems for kitchen knives, what colour is used only for knives used in the preparation of raw fish?
Green.
Brown.
Red.
Blue.
On modern chemical tankers, nitrogen is often used to achieve a super-dry atmosphere within a cargo tank prior to loading. Sometimes however, equipment delivering a special air supply is fitted and available for this same purpose. What does this equipment do?
It injects nitrogen into the air.
It supplies super-cooled air.
It filters carbon-dioxide out of the air.
It supplies de-humidified air.
What is one of the main features of the cylinder lubricating oil used in large 2 stroke marine diesel engines which normally operate on heavy fuel oil?
It is a pure mineral oil without any special additives.
It is strongly alkaline.
It is strongly acidic.
It is neutral with a pH value of 7.
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 anticipated rolling period of a ship with a large initial Transverse Metacentric Height (GM) and would there be any associated dangers to consider?
Long slow roll and no particular hazards
Short sharp period of roll associated with breaking lashings and shifting cargo
Short period of roll, but a very stable ship and no associated dangers
Long period of roll with free surface effects at a maximum.
Passenger ships shall either carry automatically self-righting liferafts or canopied reversible liferafts. What does it mean that a liferaft is automatically self-righting?
The liferaft will automatically turn back into an upright position when it is empty of people
One person can manage to turn the liferaft back into an upright position
The liferaft will automatically turn back into an upright position when it is fully loaded with people
It means the same as self-righting lifeboats
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?
Low jacket cooling water temperature.
Valve rotators not operating.
Clutch engaged.
Low start air pressure alarm.
How often shall liferafts be serviced?
Every second year
At intervals not exceeding 18 months
Decided by the safety officer
At intervals not exceeding 12 months
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。