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Главная Онлайн-тесты CES Gas tanker 2nd-Off / 3rd-Off Онлайн-тест CES 5.1 для 2nd-Off / 3rd-Off, Gas tanker vessel
Онлайн-тестирование: Онлайн-тест CES 5.1 для 2nd-Off / 3rd-Off, Gas tanker vessel
Онлайн-тест
Описание
Тест состоит из случайных вопросов по выбранной теме.
Вопрос 1 из 90
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Give the meaning of the following symbol
Survival craft distress pyrotechnic signals
Line throwing appliance
Radio signal emitting parachute flare
Lifeboat hand flare
Hydrocarbon gas encountered in oil tankers cannot burn in an atmosphere containing less than approximately what percentage of oxygen (by volume)?
15%
11%
17%
13%
What types of gases are not allowed as fire-extinguishing medium for fixed gas fire-extinguishing system aboard ships? (SOLAS II-2/5.1.1)
Fuel combustion gases
Halogenated hydrocarbon gases
Toxic gases
Carbondioxide gases
*Which of the following instructions will generally be given by a port authority to allow welding or hot work in a tank having contained flammable liquids ?
When the tank has been satisfactory cleaned there shall be a 12 hour quarantine
If the mechanical ventilation is stopped, the tank shall be left within 5 minutes
All answers are good
During work in tanks, the gas concentration shall be checked every second hour
Apart from red, what other colour is frequently used for a dry powder extinguisher?
Green
Black
Blue
Yellow
*What maximum suction head can be expected from a fire pump?
Approximately 1 metre
Any height, provided the pump has enough power
Approximately 5 metres
Approximately 10 metres
When a fire breaks out in the accommodation, cargo holds or on deck, who is in charge of the fire fighting operations?
The person who is designated in the muster list
The first officer arriving at the scene
The first person arriving at the scene
The chief officer
*What is the correct procedure to extinguish a soot fire in the exhaust boiler?
Stop the engine and use the CO2 fixed fire-extinguishing system
Reduce speed and use soot blowers if some are fitted
Stop the engine and let the fire burn out by itself
Increase speed or continue full speed
What is false regarding the function :” Transmission and reception of signals for locating ”
On area A2 this function is based on the use of SART transponders
On all areas this function is based on the use of S band radars
On area A3 and A4 this function is based on the use of SARSAT COSPAS Epirb
On area A1 this function is based on the use of SART transponders
A Cargo Ship Construction Certificate will be issued for :
A period not exceeding 12 months
A period not exceeding 48 months
A period not exceeding 6 months
A period not exceeding 24 months
How frequent should reports from protection and environmental work be send to shore based management?
Every three years.
Biannually.
Not mandatory to send reports.
Annually.
To what purpose is safety meetings held prior to surveys?
To account for all personnel involved and divide individuals into groups. Ref. IMO Chapter 12.
To check out if the rules of ISGOTT Chapter 10 is followed.
No particular reasons for holding a safety meeting.
To meet all participants and distribute equipment.
Reports shall be made if
Safe cargo handling is affected
All answers
Safety of the vessel is affected
Safe navigation is affected
A severe blow to or a heavy fall on the upper part of the abdomen (solar plexus) can upset the regularity of breathing. What is the symptoms and signs?
The casualty may start sweating profusely and develops a fever.
Difficulty in breathing in and the casualty may be unable to speak.
The casualty feel very hungry.
The casualty is speaking in a very load manner.
A faint is a brief loss of consciousness of no more than momentary duration caused by a temporary reduction in the flow of blood to the brain.How to prevent anyone from fainting?
Tell the person to sit down in a sitting position breathing normally.
Tell the person to sit down and lean forward with the head between the knees taking deep breaths.
Try to keep the person in an upstanding position.
If standing in a crowd, flex the leg muscles and toes to aid circulation.
Which of the following is NOT required to be in the oil transfer procedures?
Any special procedures for topping off tanks
A line diagram of the vessel's oil transfer piping
The location and capacity of all fuel and cargo tanks on the vessel
The number of persons on duty during oil transfer operations
Your vessel has been involved in a collision, which has resulted in a heavy oil leakage. Who should be called to handle pollution claims and damages?
Flag state representative.
The Classification Society's representative.
The Leading Hull Underwriter's nearest Average Agent.
The P & I Club's nearest representative.
Are there any restrictions about how much sludge we can pump overboard on the sea voyage?
Maximum is 30 litre pr nautical mile and total is 1/10000 part of full cargo on the ballast voyage.
Maximum is 30 litre pr nautical mile and total is 1/30000 part of full cargo on the ballast voyage.
Maximum is 60 litre pr nautical mile and total is 1/30000 part of full cargo on the ballast voyage.
There isn’t any restrictions of pumping sludge from ships outside special areas
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
The tug has been released and is all clear. As officer in charge of that operation, should this be reported and to whom?
No need for reporting as the order was given from the bridge
Report all clear to the tug
Reported all clear to the Bridge
Report all clear to the Engine Room
A vessel berths at two different jetties under the influence of a 1 knot beam current. At the first jetty the ship has an underkeel clearance of 5 times the draught and at the second the underkeel clearance is only 0.5 times the draught. If the current exerted a force of 50 tonnes on the ship at the first jetty, what would be the approximate force exerted at the second if the draught is the same?
75 tonnes
Unchanged, remains at 50 tonnes
25 tonnes
150 tonnes
You are in confined waters. Is there any danger in the situation sketched below if you should lose engine power?
She will sheer slowly to port
She will drift to port, but rather slowly as you are loaded
Your ship will sheer to starboard rather quickly with the possible consequence of grounding
Your ship will lose headway, but there should be no immediate danger
Your ship is going full astern and making sternway. Where will the "pivot point" be located? No wind, current.
Somewhere aft of the center of gravity, but it is impossible to pin-point the exact location
At the center of gravity
At 1/6 of the ship-s length off the bow
At 1/6 of the ship-s length from the stern
What is the correct understanding of the term "bank effect"? If a ship was approaching the bank at an angle, what would be the effect on the ship?
The vessel's stern is pushed away from the bank
The vessel’s bow is attracted by the bank.
The whole vessel would continue straight towards the bank and would require a large helm order to avoid going aground.
The vessel's bow is pushed away from the bank
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
Give the meaning of this symbol:
lifebuoy with light and smoke
lifebuoy with light
lifebuoy
lifebuoy with line
Which one of the listed requirements regarding line throwing appliances do not correspond to present regulations? Every line throwing appliance shall:
be capable of carrying the line with reasonable accuracy
have projectiles (rockets) capable of carrying the line at least 230 m in calm weather
have a sufficient length of non-combustible line behind the rocket
have brief instruction or diagram illustrating the use of the line throwing apparatus
Instructions for onboard maintenance of life-saving appliances shall be easily understood and illustrated wherever possible. Which of the following items do not necessarily have to be included in the instructions according to present regulations?
Schedule for periodic maintenance
Check list for periodic inspections
List of replaceable parts
Log for records of inspections and maintenance
What method shall be used when hauling survivors out of the sea (state of survivors is critical)?
Using painter
Using heaving line
Using nets
Using lifebuoy
*Which among the following list is particularly required for a totally enclosed lifeboat ?
windows on both sides can be closed watertight and opened for ventilation
handrails inside for persons moving to their seats
hatches positioned so as to allow launching and recovery operations to be performed without any occupant having to leave the enclosure
self-bailing arrangements
Which among the following list is particularly required for a totally enclosed lifeboat ?
handrails inside for persons moving to their seats
above water escape for its occupants after automatically positioned in damaged condition
self-bailing arrangements
windows on both sides can be closed watertight and opened for ventilation
What is the meaning of this symbol ?
Lower rescue boat to water
Lower liferaft to water
Lower lifeboat to water
Release gripes
Give the meaning of the following symbol
Survival craft portable radio
Survival craft distress pyrotechnic signals
Radar transponder
EPIRB
*Which of following items shall be included in an abandon ship drill?
a mock search and rescue of passengers trapped in their staterooms
Checking passenger's immersion suits
Checking the lifeboat provisions and supplies
Checking the distress signal rockets and other distress signals
Why is it necessary to have routine testing of the cooling water?
To detect the presence of contaminants in the water that may be injurious to the cooling system.
It is not necessary.
To ensure that the proper residuals of treatment chemicals, as specified, are maintained all time.
To trace leakage in the cooling water system.
You have just completed tank inspection, prior to loading a number of chemical grades. The Duty Officer instructs you to secure the tank lids. (On this vessel, they are circular in design, with four dogs and the lid is raised and lowered on a geared wheel). Which of the following methods will you use to secure the lids?
I will swing the lid over the coaming and postion the dogs, tightening down the two furthest from the geared wheel first, then the two closest to the wheel. I will then take any remaining pressure off the wheel.
I will lower the lid with the geared wheel, ensuring that the coaming rim sits centrally against the packing. I will then position and tighten the dogs, working back and forth so that an even pressure is applied overall.
I will lower the lid with the geared wheel and then work round the dogs in a clockwise direction, tightening each one right down in turn.
I will lower the lid with the geared wheel, screwing it down as tightly as possible, then position the dogs, so that the lid remains centrally positioned while the ship is as sea.
A loaded bulk carrier experiences heavy ice accretion on deck forward, what are the major concerns of the changes in stability?
Excessive trim by the stern
Reduction of speed and additional fuel consumption
Reduction of metacentric height (GM) and loss of freeboard forward
Increase in metacentric height (GM)
What should be done if cracks are found on portable deck supports?
Disallow vehicles from passing over the portable deck
Inform the master
Inform the stevedoring foreman
Stop cargo operations and inform the master
Training manuals for Life Saving Appliances and Fire Fighting systems and equipment shall be provided in crew mess room, recreation room or in each crew cabin. The training manuals shall explain the following in detail:
General Emergency procedures
Emergency procedures including alarm signals, general instructions and safety practice onboard, specific information on equipment, operation of equipment
Alarm signals and donning of lifjackets
Manufacturer's specific information on equipment including maintenance procedures, operation of equipment
What should not be done when a container of liquid ammonia is on fire?
Restrict ventilation
Cool the container with water
Use a dry chemical fire extinguisher or carbon dioxide gas
Use self-contained breathing apparatus
What is the main information we get from a Mollier diagram?
We get information about enthalpy, specific volume of vapour, liquid/vapour mixture, temperature of vapour when pressure is known and pressure in the cargo tank when liquid temperature is know.
We get information about enthalpy, specific volume of vapour, liquid/vapour mixture, temperature of vapour when pressure is known.
We get information about enthalpy, specific volume of the liquid and latent heat.
We get information about specific volume of vapour, liquid/vapour mixture, temperature.
Why is it important for hatch coaming compression bars to be maintained in good order?
So that hatch covers remain water tight
So that water can drain out from the hatch coaming drains
So that there is no steel contact between the hatch covers and hatch coaming
So that hatches can be properly sealed
A medium speed diesel engine, operating with a pulse turbocharging system, has been adjusted to have good power balance. What would the cylinder exhaust gas temperatures, relative to each other, be expected to be?
plus or minus 5 degrees Celsius.
All cylinder exhaust temperatures should be equal if the cylinder power balance is correct.
plus or minus 70 degrees Celsius.
plus or minus 30 degrees Celsius.
When working in parts of the inert gas system such as the scrubber or deck water seal, what procedure must be followed?
Normal working practice.
Working with self contained breathing apparatus (SCBA).
Enclosed space entry.
Working aloft.
When a large motor load suddenly is disconnected from the switchboard and the generator is AVR controlled, what will the ouutput voltage do ?
Remain approximately constant, due to governor action.
Initially rise, then reset to the set value.
Remain approximately constant, due to AVR action.
Initially fall, then reset to the set value.
During loading operations on conventional reefer vessels steel sheets are sometimes placed in the hatch square to avoid damage to the gratings in the square. Select, from the options given, the likely consequence of leaving the steel plates in the hatch square.
Steel has a different heat capacity to the cargo and may cause unexpected results from cooling the cargo during passage.
The stevedores will claim against the vessel for removing the steel plates.
The steel plates may overload the gratings if they are left in place with cargo on top.
The steel plates may block the flow of refrigerated air through the cargo.
Once a hatch is sealed, what prevents sparks from entering the hold of a Bulk Carrier?
Air pipes
The hatch seals
The ventilator grill
Ventilator trunking
What is the purpose of a dovetail foundation?
To secure double stacking cones
To lock adjacent containers together
To secure base twistlocks
To secure a single stacking cone
An LNG carrier is equipped with membrane type tanks with a MARVS less than 0.7 bar. What additional cargo containment requirements, if any, are needed for this type of cargo tank arrangement?
Only a partial secondary barrier is required.
No secondary barrier is required as this is a self supporting arrangement.
Only a drip tray is required.
A full secondary barrier is required.
The lights here show those that must be exhibited by a vessel engaged in towing, as per rule 24 of the International Collision Regulations. But how long is the tow behind this vessel?
It is more than 50 metres but less than 200 metres.
It is less than 200 metres.
At least 100 metres.
It exceeds 200 metres.
Which one of the following international regulations is normally used when handling dangerous goods?
IMDG code
HB code
KLMNG code
SOLAS code
There is a permanently mounted mixer in the galley. It breaks down. What should the galley staff do about it?
The Cook should immediately place an order for a replacement unit to be delivered at the next port.
The catering staff should say nothing and hope that one of them can fix it before anyone notices.
They should report the defect through the proper system on board, isolate the power supply and place a notice on the mixer stating that it should not be used.
The catering staff are fully responsible at all times for galley equipment, so should fix it themselves and get it working at the earliest opportunity.
What percentage of the ship’s stores are required to be inspected at Security Level 3?
25-50% of the ship's stores are required to be inspected at Security Level 3.
5-20% of the ship's stores are required to be inspected at Security Level 3.
50-80% of the ship's stores are required to be inspected at Security Level 3.
100% of the ship’s stores are required to be inspected at Security Level 3.
During maintenance work on a compensated mechanical hydraulic governor air is drawn in to the hydraulic circuit after draining and flushing out the unit. Which of the actions given in the options is most likely to assist in the removal of the air from the system?
With the governor in operation open the compensation needle valve to introduce instability and disturb the engine load to make the governor hunt.
With the governor in operation close the compensation needle valve and disturb the load to make the engine hunt.
Overfill the governor with fresh oil to force all of the air out.
Drain the governor again and slowly refill with fresh oil.
Where should containers with fishmeal cargo be carried?
On deck away from sunlight
Separated from class 4.2 containers
On deck
Under deck
The deaerating heater is used on
Only low-pressure boilers
The closed-type feed-water system
All steam plants
The open-type feed-water system
From the options given, select the type of cleaner that is most suitable for washing down a refrigerated cargo space.
A cleaner which contains a powerful bleaching agent.
A cleaner which has a fresh smell such as the smell of pine.
A cleaner containing a powder scouring agent.
An odourless cleaner.
At what temperature do we take the Reid Vapour Pressure test?
We take the Reid Vapour Pressure (RVP) test at the temperature of 100 C.
We take the Reid Vapour Pressure (RVP) test at the temperature of 60.0 C.
We take the Reid Vapour Pressure (RVP) test at the temperature of 38.7 C.
We take the Reid Vapour Pressure (RVP) test at the temperature of 37.8 C.
Which of the following is the minimum acceptable value of insulation resistance for High Voltage equipment?
100 k Ohms
1M Ohms
1G Ohms
100 M Ohms
What would indicate wastage to the main shaft of a ‘D’ ring?
Corrosion around the welded seam to the deck
Corrosion of the welded seam to the deck
Corrosion of its retaining sleeve
Pitting of the ‘D’ ring
The refrigeration system for the ships provisions consists of a number of cold rooms served by a central refrigeration system. The evaporator coils for the vegetable room are found to be frosting up even though the room is down to temperature and the liquid line valve has closed. Select, from the options given, the automatic control component which is likely to be malfunctioning and so cause this condition.
The low pressure cut out for the compressor.
Thermostatic expansion valve for the meat room.
Back pressure control valve.
The liquid line valve for the flour room.
Which of these actions should you take it your ship is successfully boarded by armed pirates?
Fight back.
Scream in fear and refuse to cooperate.
Keep quiet and ignore any questions you’re asked.
Assure your captors that you’re not planning an attack to overthrow them.
This graphical symbol is a logic gate with truth table. Which gate?
NOR
AND
NAND
OR
Maintenance is to be carried out on a diesel engine. How long after stopping the engine should the cooling water and lubricating oil be kept circulating in order to avoid any undue thermal stress from residual heat?
10 minutes is sufficient.
At least 8 hours
At least one hour.
At least 24 hours.
During inspection of a high pressure fuel pump for a medium speed diesel engine it is observed that the upper leading edge and the lower helical edge of the pump plunger have suffered from erosion damage. Select the correct action to take to remedy this from the options given.
Replace the complete pump with a new or reconditioned spare.
Renew the plunger and barrel insert as a pair.
Smooth away the damaged area with a grinder and polishing stone and refit it.
Renew only the plunger if the barrel appears undamaged.
Check the items that can be a possible threat
All alternatives
"Piracy, Hijacking and Smuggling"
Bombing and Sabotage
Cargo tampering and Stowaways
What should be the status of the suction and discharge valves when starting a centrifugal pump?
Suction valve open and discharge valve closed
Suction valve closed and discharge valve open
Both valves open
Both valves closed
Which one of the following liquefied gas cargoes is considered as presenting a toxic hazard according to the IMO Gas Codes?
Butane.
Ethylene.
Propane.
Ammonia.
In terms of food temperature, what is considered to be the "danger zone" at which bacteria can flourish?
Below 5 degrees Celsius.
Above 63 degrees Celsius.
Between 15.6 and 37.8 degrees Celsius.
Between 5 and 63 degrees Celsius.
The HP discharge valves of a 2 stage air compressor suffer from build up of carbon deposits even though the correct maintenance is carried out on them. What is the most likely cause of this problem?
Water in the compressor lubricating oil.
Worn scraper and piston rings.
Compressor cooling water temperature too low.
Ineffective air intake filter.
In a PID controller we have possibility to change the setting of the Proportional band (P), the Reset time (1) and the Rate time (D). Please indicate which curve shows the typical response to a change in input, if the setting of the proportional band is too wide.
Figure 1.
Figure 3.
Figure 4.
Figure 2.
What will happen to sodium under normal atmospheric conditions in the presence of water?
It will undergo a chemical reaction
It will explode
It will decompose
It will self-ignite
With reference to the text in the frame: what is stated as a threat to lives at sea and the marine environment?
There is no immediate threat to the crew or environment
All old or new ships which are badly managed ships.
All ships aged between twenty and thirty years old.
Bad management and poorly maintained older ships.
We say the centrifugal pump cavitates when:?
When the liquid accelerates from the suction side.
When the NPSH is variable.
A reduction of the flow.
We have negative pressure on the inlet side of the pump.
On the figure 4 possible definitions of the term "FORECASTLE" are given. Which one is the correct one?
Forecastle is given by C on the figure
Forecastle is given by B on the figure
Forecastle is given by A on the figure
Forecastle is given by D on the figure
This vessel is sighted ahead and slightly to port. What is her situation? What will you do?
This vessel is aground. I will navigate with extreme caution given the nature of the hazard.
This is a vessel not under command at anchor.
This is a vessel engaged in fishing vessel, with her nets fast on an obstruction. I will keep out of the way by rule 18 of the International Collision Regulations.
This is a vessel aground. She appears to have been headed to starboard of my track and I will therefore alter course to port, passing under her stern.
One of the tubes in a seawater cooled condenser is leaking due to being holed half way along its length. What is the most appropriate onboard repair method to be used from the options given?
Roll both ends of the leaking tube using a tube expanding tool.
Blank off the leaking tube at both ends with steel screw plugs after cutting an internal thread using a suitable tap.
Blank off the leaking tube at both ends using suitably tapered brass plugs.
Blank off the leaking tube by brazing a cap to each end of the tube.
What would be a typical value for the set point for shut down of a large 2-stroke diesel engine due to thrust bearing high temperature?
125° C
85° C
65° C
105° C
For what purpose might 'line displacement' or 'line pressing' be conducted prior to the discharge of cargo from an oil tanker?
To balance a rigid cargo arm.
To test the automatic shut-down arrangements in the shore line system.
The calibration of the ship's flow meter.
The verification of the shore line for calculation purposes.
On RoRo passenger ferries, the passengers are not normally allowed to be on the car-deck during sailing. What is the reason for this rule?
To prevent damage and burglary to the cars.
In case of an emergency situation, the car deck can be difficulty to find the way around, and cars can shift position caused by ships movement.
If the car deck are empty, it will be easier for the crew to locate all passengers in case of an emergency
The ships movement can make the cars slide/move and a person can be trapped between two cars.
What is the most negative side of using a centrifugal cargo pump?
Displacing the liquid by reducing the volume inside the pump.
High purchase and installation cost.
Mechanically displaces the liquid in the pump.
The lack of self priming.
The best way to ensure you get the equipment you need is to:
Buy what everyone else is buying.
Determine your needs and do some research.
Buy the most expensive equipment on the market.
Buy the newest models.
Which Security Levels requires the highest security alert?
Security Level 2
Security Level 1
Security Level 3
.
Select the option which correctly completes the following statement. "A conventional reefer vessel operating with a controlled atmosphere plant must have cargo spaces which…
… have a gas tight seal."
… are fitted with variable speed fans."
… have the normal bulkhead and deckhead penetrations required for a reefer compartment."
… have a minimum number of deckhead and bulkhead penetrations."
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.
After main power is restored, a timed sequential restart of motor-driven auxiliaries is necessary to avoid:
Overvoltage due to current surges
Generator overload due to many motors starting at simultaneously
Overloading creating earth faults
Over-frequency due to overspeed of generator
On a Container vessel, what is the function of a raised deck socket?
To house base twistlocks or stacking cones
To house stacking cones
To secure turnbuckles
To house base twistlocks
The space between the cargo tank liquid dome and dome cover for an LNG carrier is maintained inerted, usually using nitrogen. What is the maximum allowable O2 content of the nitrogen used for this purpose?
1% O2.
3% O2.
4% O2.
5% O2.
Which is the "LENGTH OVERALL", in the figure?
Length Overall is indicated by C, in the figure
Length Overall is indicated by D, in the figure
Length Overall is indicated by B, in the figure
Length Overall is indicated by A, in the figure
Which of the following answers most suitably cover the standard duties of the bridge Officer of the Watch when the ship is at anchorage?
Display the anchor signal, patrol the ship frequently and check the anchor chain for dragging
Display anchor signal, check the ships position and keep a good lookout
Display the anchor signal and ensure the ship swings the same way at each change of tide
Display anchor signals and keep a good lookout of other ships in the area
Данный онлайн-тест состоит из 90 случайных вопросов из тестов CES 5.1 по выбранной вами тематике.