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Home Online tests CES Gas tanker 2nd-Off / 3rd-Off Test online CES 5.1 for 2nd-Off / 3rd-Off, Gas tanker vessel
Online testing: Test online CES 5.1 for 2nd-Off / 3rd-Off, Gas tanker vessel
Online test
Description
The test consists of random questions on a selected topic.
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Give the meaning of the following symbol
Line throwing appliance
Rocket parachute flares
Survival craft distress pyrotechnic signals
Lifeboat hand flare
How many rocket parachute flares are carried in each lifeboat?
12
Nil
4
6
*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
*In addition to personal equipment a complete set of fireman's outfit also comprises a breathing apparatus and a fireproof lifeline. How many complete sets of fireman's outfit is to be carried by all ships?
At least three sets or more depending on the type and the size of the vessel
At least four sets or more depending on the type and the size of the vessel
Two sets or more depending on the type and the size of the vessel
At least one set or more depending on the type and the size of the vessel
Inmarsat Telex Service code ‘33’ can be used:
when the coast-station is disfunctional
to ask for ‘maritime enquiries
Don't know
when technical problems are experienced with the Inmarsat-terminal
With an Inmarsat-C terminal the option ‘PSTN’ for addressing is available. This option:
to deliver a message by telephone via a modem on the computer of the subscriber
to have the operator read the message by phone
Don't know
delivers a message as a telegram
The first time you send a DSC distress alert via the HF-band, you prefer the?
8 MHz band
12 MHz band
16 MHz band
Don't know
What rules and regulations are regulating the watch keeping routines in the engine room?
International Standard for Training and Watch keeping (STCW)
SOLAS
Both STCW and Class rules
Class Rules
For which ships is the MARPOL convention applicable?
For all vessels.
For all vessels except passenger vessels.
For all vessels except those engaged in coastal trade.
For tankers and other vessels carrying persistent oil as cargo.
Sun rays and light reflected from a bright surface (e.g. sea); can cause damage to the skin and eyes. What is this type of burn called?
Dry burns.
Cold burns.
Electrical burns.
Radiation burns.
Chemical burns in eyes or on the skin can cause severe damage. Some chemicals may be absorbed through the skin and cause widespread and sometimes fatal damage within the body. What is the first main treatment if someone is a victim of chemical burns?
Break possible blisters around the eye and mouth.
Apply lotions, ointments to the affected area ASAP.
The casualty may be free to both rub the eye and the affected area.
Remove any contaminated clothing and flood the affected area with slowly running water. Make sure that the contaminated water drains away freely and safely.
Give the meaning of the following symbol
Remote controlled fire pumps
Foam release station
International shore connection
CO2 battery
What is a "Search and Rescue Region" (SRR)?
An area of limited dimension in which rescue vessels are permanently stationed
An area of defined dimension where an international organization is responsible for search and rescue operations
An area of defined dimensions within which search and rescue services are provided
An area where a search and rescue operation is ongoing
Which of the following hull shapes would normally provide a directionally stable ship?
A long ship with a wide beam
A short ship with a wide beam
A long ship with a narrow beam.
A short ship with a narrow beam
The engines are going astern and the ship is making sternway of about 1.5 knots with the rudder hard to starboard. What effect will this have on the ship's progress?
This will give the stern a lift force to port
There will be no lift force and the ship will go straight astern
This will give the stern a lift force to starboard
The rudder will have no effect when the ship is making sternway, it should be in the amidships position when going astern
When ship to ship operations are being carried out at anchor, anchor watch duties are as follows irrespective of which ships anchor is down:
Anchor watch responsibility rests with the offtake vessel.
Anchor watch responsibility rests with the discharging vessel (which, we shall assume, has its anchor down).
Anchor watch responsibility rests with both vessels, each with its own watch.
Anchor watch not kept as duty officer will be on deck.
Give the meaning of the following symbol:
gathering place for embarkation formalities
muster station for unaccompanied minors (UM)
muster station
embarkation station
The minimum number of lifebuoys required for a cargo ship cannot be less than:
2
10
6
8
Which one of the listed requirements regarding the general emergency alarm system do not correspond to present regulations? The general emergency alarm system shall:
be capable of operation from fire stations aboard the ship
be able of sounding the emergency alarm signal by the ships whistle or siren, and additionally on electrically operated bells or claxons
be audible through all accommodation and crew working spaces
have electric alarm bells (or claxons) powered from the ship-s main and emergency sources of electric power
When fully loaded, a lifeboat should have a sufficient strength to withstand a drop into the water from a height of:
Not less than one third of the distance from the stowage position of the lifeboat to the waterline in the in the lightest seagoing condition
Not less than 0.5 metres
Not less than 3.0 metres
Not less than 1.5 metres
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 buoyant paddles
one boat-hook
two painters of a length equal to not less than the distance from the stowage position of the liferaft to the waterline
Which item among those below is included in the normal equipment of every liferaft ?
one boat-hook
two painters of a length equal to not less than the distance from the stowage position of the liferaft to the waterline
one searchlight which can work continuously for not less than 3 hours
six hand flares
Which item among those below is included in the normal equipment of every lifeboat ?
one life-jacket for each person
an EPIRB
sea-charts and navigating equipment
two boat-hooks
Which one of the listed requirements regarding self-righting partially enclosed lifeboats do not correspond to present regulations? Self-righting partially closed lifeboats shall have:
stability for inherently or automatically self-righting with full or partial complement
permanently attached foldable canopy over open parts
sufficient number of pumps and bailers
safety belts fitted at each indicated seating position
How much water per person is provided in a liferaft not equipped with a desalting apparatus?
2 litre
1.5 litre
5 litre
3 litre
*Give the meaning of the following symbol
Close rescue boat ventilation aperture
Secure hatches
Secure liferaft canopy closing device
Secure doors in the ship's side plating
*How much food per person is supplied on a lifeboat?
Not less than 10000 kJ
None -only barley sugar-sweets supplied
Not less than 20000 kJ
Not less than 5000 kJ
How much water would you allow per person as officer in charge of the lifeboat, following an abandon ship operation?
Nothing for the first 24 hours, then 1/2 litre per day (more in the tropics)
Nothing for the first 48 hours, then 1/4 litre per day (more in the tropics)
1/2 litre immediately, followed by 1/4 litre per day (more in the tropics)
Nothing for the first 24 hours, then 1/4 litre per day (more in the tropics)
*When reasonable and practicable, how often shall rescue boats be launched with their assigned crew aboard and manoeuvred in the water?
Every six months
Every two weeks
Every week
Every month
Which of following items shall be included in an abandon ship drill?
Checking the distress signal rockets and other distress signals.
Checking passenger's immersion suits.
Checking the lifeboat provisions and supplies.
Checking that lifejackets are correctly donned.
Where do you find instructions for tasks and duties in case of an emergency?
On posters at the lifeboat station.
In the muster list.
In instruction notices posted in the crew's cabins.
In instruction notices posted in messrooms, recreation rooms etc.
Indicate the correct name for the tool on the sketch:
Padlock
Adjustable wrench
Flexible pipe
Water Pump Pliers
What method should be used to discharge a semi-pressurised gas carrier if there is a break down on the cargo discharge pump?
By using the cargo compressor to pump the cargo vapour ashore as it boils off.
By using a portable submersible pump to empty the affected tank
By using the inert gas system to pressurise the cargo tank and force the liquid cargo ashore.
By pressurising the vapour space of the cargo tank using a vaporiser and cargo compressor to force liquid cargo ashore.
At what temperature is it recommended that frozen fish is stored?
0degrees Celsius.
Between 1 and 4 degrees Celsius.
-2 degree Celsius.
-20 degrees Celsius.
Which electronic component is this graphical symbol illustrating:
Auto transformer
Potentiometer, 10 kilo-ohms
Variable inductive reactor
Variable electrical heater, 10 kilo-watts
Your vessel is progressing within a Traffic Separation Scheme and receives a navigational warning of another vessel progressing the wrong way within the scheme. What actions should be taken on the bridge, if any?
Use the Arpa for early identification of all other ship movements within the traffic lane and give rogue vessel a wide berth
Move out of the traffic lane towards the coast.
Slow down your vessel and proceed with caution, posting extra lookouts.
Take no actions but proceed with extra caution.
In which cases shall side scuttles in passenger ships be so constructed that they cannot be opened without the consent of the master of the ship?
Where the sills of the side scuttles are below the margin line
Where the sills are mounted below the bulkhead deck
Where the sills of the side scuttles are less than 500 mm above the deepest load line
Where the height of the side scuttles go through more than two decks
Under what regulations would steel bands remaining in the cargo holds have to be discharged?
MARPOL 73/78 (Annex IV - Regulations for the prevention of pollution by sewage from ships)
Port state regulations applicable at the port of destination
MARPOL 73/78 (Annex V – Regulations for the prevention of pollution by garbage from ships)
Flag state regulations
How would you pick up a knife from a bench?
I would slide it to the edge of the bench and then pick it up by the handle.
It doesn't really matter - I would pick it up just how it was left lying by the last person who used it.
By the handle, with the blade towards me.
By the handle, with the blade facing away from me.
What would the Master require of the Chief Officer?
The Master would require the Chief Officer to organise a lifeboat drill
The Master would require the Chief Officer to repair the lifeboat engine
The Master would require the Chief Officer to test the lifeboat engine
The Master would require the Chief Officer to replace the lifeboat painter
What would a cracked cross-deck plating found during a loaded passage on a bulk carrier indicate?
That bulkhead failure is imminent
That the vessel is due for survey
That shear forces have been exceeded
That failure of the shell plating is imminent
On the figure 4 possible definitions of the term "FREEBOARD" are given. Which one is the correct one?
Freeboard is given by A on the figure
Freeboard is given by C on the figure
Freeboard is given by D on the figure
Freeboard is given by B on the figure
What should be done in preparation for loading cold rolled steel sheets in bulk carriers?
8mm wire cables should be laid athwartships over the tank top spaced 5m apart
Dunnage should be laid athwartships over the tank top
Dunnage should be laid fore and aft over the tank top
16mm wire cables should be laid fore and aft over the tank top spaced 3m apart
What is the relationship between absolute and gauge pressure?
Absolute pressure = gauge pressure + barometric pressure.
Gauge pressure = barometric pressure / atmospheric pressure
Absolute pressure = gauge pressure x 0.947 barometric pressure.
Gauge pressure = absolute pressure + barometric pressure.
Under what circumstances would you remove guards and safety devices from machinery?
To allow the shaft to be seen to confirm the machine is running.
When they are rattling and vibrating.
When the safety devices keep stopping the machinery
During overhaul and maintenance procedures.
A refrigerated container is loaded on deck. On inspection it is noted that the door seals are damaged. Select, from the options given, the main reason why it is unacceptable to have a refrigerated container in such a condition.
If the door seal is damaged the cargo packaging may become watermarked.
If the door seal is damaged the cargo may spoil due to ingress of warm air.
The refrigeration unit will run for more time than is normal.
The refrigeration unit will ice up to a greater extent than normal.
A deadweight tester is used to check and calibrate a pressure gauge. The tester consists of a hydraulic pump and a hydraulic chamber and balance weight system. After completing the calibration of the pressure gauge the hydraulic pressure should be relieved before removing the weights. Select, from the options given, the main reason for this requirement.
To protect the pressure gauge from a surge in pressure as the weights are removed.
To protect the hydraulic balance system from a pressure surge as the weights are removed.
To protect the piston in the hydraulic system from possible impact damage as it may reach the end of its stroke.
To protect the hydraulic pump from a pressure surge as the weights are removed.
Why is an inertgas system required when COW is undertaken?
Safety purpose?
Improved outturn of cargo?
Less bildup of sediment in tanks?
Higher pumping flowrate?
This circuit is widely used for rectification of AC into DC. Which of the diagrams is correct for the out- put voltage when the input voltage is sine-shaped as shown?
Figure 3
Figure 1
Figure 2
Figure 4
You have just finished discharging several grades of chemicals. Why is it important that the Chief Officer has considered "solubility" when planning the tank-cleaning programme?
Because it will have indicated if hydrocarbons will still be present on the tank bulkheads after initial cleaning and that a chemical additive may need to be circulated or sprayed afterwards to remove them.
Because it will have shown which tanks need to be cleaned first.
Because it will have indicated if the cargo residues can be cleaned with water alone, or if a chemical additive will be needed to help break them down.
Because it will have indicated how much odour there is likely to be remaining in the tank after cleaning.
You enter a High Voltage switch room and find a person apparently unconscious. Which of the following should be done?
Check if the victim is in contact with live parts and if not apply first aid.
Raise alarm, identify means of isolation and apply before approaching victim.
Trip all breakers and approach victim.
Raise alarm then drag the victim clear so that they cannot reach live parts while receiving aid.
With reference to the installation of pressure gauges for steam systems. Complete the following statement from the options given. To protect a bourdon tube type pressure gauge which is to be fitted to a steam line it should ….
..be fitted directly to the steam pipe.
..be fitted to the steam pipe using a flexible hose.
..be fitted with a siphon loop between it and the steam pipe.
..have its casing filled with water.
Your vessel has a controllable pitch propeller. The engine can be started when the propeller pitch is:
25 % ahead
10 % ahead
25 % astern
Zero
Where are cargo residues usually concealed?
In the bilges
In the upper sections of the ship’s frames
In bulkhead corrugations
In recesses below manhole covers
Some cargoes carried on liquefied gas carriers are toxic and are given a Threshold Limit Value (TLV) as a time weighted average (TWA). What does the TLV-TWA usually indicate?
It indicates the maximum vapour concentration that a person can be exposed to for 8 hours per day or 40 hours per week.
It indicates the maximum vapour concentration that a person can be exposed to for one hour.
It indicates the absolute maximum vapour concentration that a person may be exposed to at any time.
It indicates the maximum vapour concentration that a person can be exposed to before breathing apparatus is required.
What is the boiling temperature of methane at atmospheric pressure?
-43 C.
-162 C.
-152 C.
-172 C.
What is the danger of having a large bunker tank only partially filled with bunkers?
Excessive corrosion of the tank sides.
FSE and virtual loss of GM.
Constructional damage due to liquid movement in the tank.
Insufficient bunker to complete the voyage.
What makes cargo holds weather tight?
The hatch coaming compression bar
Firm contact between the hatch cover rubber seals and the hatch coaming compression bar
Steel-to-steel contact between hatch covers and coaming
Hatch cover rubber packing
The physical size of a resistor is an indicator of its
Power dissipation capability
Tolerance
Total resistance
Resistivity
Through time the container stools on the weather deck / hatch tops of a container vessel can suffer from corrosion and wear down. Select the most dangerous consequence of ignoring this.
It may be difficult to fully lock the twistlocks.
The deck stool may collapse causing the lashings to go slack.
The container will not sit evenly on all four corners.
It may be difficult to remove the twistlocks during cargo operations.
Which of the following is an artificial sweetener?
Caterin
Sugarin
Nutralin
Saccharin
What do you understand by: Secure the tug?
Secure the tug means: to pass a line to the tug
Secure the tug means: to let go the tug
Secure the tug means: to make fast the tug
Secure the tug means: to pick up the tug line
A palletised fruit cargo is being loaded into a cargo space which will be partly empty at the completion of loading. In order to secure the cargo which of the options given is the best way to complete the stow?
With the face of the stow athwart ships (side to side across the compartment.
With the face of the stow stepped down using cartons after breaking down the last pallets.
With the face of the stow stepped across the compartment.
With the face of the stow fore and aft along the length of the compartment.
What kind of safety protection is to be weared during a mooring operation?
Safety shoes and boiler suit.
No particular.
Gloves and helmet.
Helmet, safety shoes, gloves and protecting cloths.
A 5V dc source has an internal impedance of 0.2 ohms. When a load of 2.3 ohms is applied what voltage will be measured at the source terminals?
4.8 V
4.6 V
5.0 V
5.2 V
If the strength of the wind is related to the pressure gradient and the space between the isobars, which of the following statements is correct?
The closer the isobars are together the stronger will be the predicted wind.
The pressure gradient is a measurement of the distance between the high and the low pressures and is not associated with isobars.
Strong winds are found in areas where the isobars are not close together
The wind force is related to the difference in pressures and blows directly between the centres of high and the low pressure
The thermal conductance capability is expressed by a material's thermal conductance number and states the heat quantity. What is the denomination for heat quantity?
Enthalpy.
Joule.
Calorific value.
Watts.
What is mayonnaise made from?
Egg yolks, oil and lemon juice or vinegar.
Eggs and olive oil, beaten together.
Fromage Frais and lemon juice.
Egg whites, sunflower oil, balsamic vinegar and flour.
Crewmen are carrying out maintenance work in the engine room on overtime. The work does not affect machinery operation. At the end of normal working hours, what should the Engineer on Duty do?
Switch to UMS-mode and leave the engine room as normal.
Continue with manual operated engine room until the maintenance work is finished.
Switch to UMS-modeand inform the crewmen not to touch any of the machinery.
Leave the engine room after asking the crewmen to switch to UMS once they have finished working
You have just finished loading a cargo of Methyl Isobutyl Kentone. What must happen before the shore hose can be disconnected?
The drip-tray must be half-filled with fresh water.
All possible cargo residues in the line must be drained or cleared and any pressure relieved. The manifold valve and shore valve must be confirmed as closed.
Any pressure remaining in the hose must be relieved by rapidly slacking off the bolts on the connecting flange.
Any cargo residues in the line must be drained to the drip-tray. The manifold valve on the ship must be open to allow maximum drainage and only closed after the hose has been removed.
Which of the following statements is incorrect with regard to IMDG Class 5 cargoes?
The goods must be stowed such that they can be easily jettisoned
The goods require protection against potential sources of ignition
The goods require protection against the accumulation of dangerous vapours
The goods require protection against contact with moisture and water
Very roughly, the gas mixture from Crude Oil can be represented by the pure hydrocarbon gas Propane for analysis and comparison purposes. What then is the approximate Lower Flammable Limit of Crude Oil when measured as a percentage volume in air?
9.5%
0.2%
5%
2.2%
What does the term "Dead Ship" mean?
"Dead Ship" means that the ship cannot make way through the water
"Dead Ship" means that the ship is aground
"Dead Ship" means that auxiliary machinery is not operational
"Dead Ship" means that the machinery and boilers are inoperational due to lack of electrical power
After clearing lines following the loading of cargoes such as Naphthas, Xylene, Toluene, Benzene, White Spirits and Kerosenes, it is necessary to wait for a specified period before taking manual ullages or samples. Why is this?
These are all "static accumulator" cargoes. As a cargo line is blown, electrostatically charged bubbles enter the tank and rise through the cargo, generating a high voltage at the surface. It is necessary to wait for a specified period of "relaxation time", to allow the charge to disperse, before introducing any potentially conductive object.
These are all cargoes which may form a wax on the surface of the cargo. As a cargo line is blown, bubbles enter the tank and rise through the cargo. If exposed to cold air as they reach the surface, a wax "carpet" may form across the whole tank. It is necessary to wait for a period of "levelling time" before allowing any air to enter the tank and taking any manual ullages or samples.
These are all cargoes with a high vapour pressure. As a cargo line is blown, the pressure in the ullage space above the surface of the cargo increases. It is necessary to wait for a period of "settling time", before opening the tank lids for sampling and gauging.
These are all cargoes considered to have high noxious vapour levels. As a cargo line is blown, the surface inside the tank is severely disturbed, releasing large quantities of these vapours. It is necessary to wait for a period of "adjusting time", before carrying out any open sampling or gauging.
What is the main reason that LPG boil-off gas is unsuitable for use in the vessel's fuel supply?
LPG vapour is heavier than air at atmospheric conditions and represent a risk as they may accumulate in machinery spaces.
LPG vapour is too difficult to ignite.
Reliquefaction of LPG vapour is a simple process and is a cheaper option than burning the boil-off gas in the boiler.
LPG is too expensive to use as fuel.
What should be the first action to be taken in the event of the water level disappearing out of the boiler water level gauge glass?
Secure all of the burners.
Close the feed-water stop valve.
Call the chief engineer.
Close the main steam stop valve.
Ro-ro 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
It means the same as self-righting lifeboats
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
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.
Are all independent tanks self-supported?
Non cargo tanks are self-supported
Only independent tank type C is self-supported
Only spherical tank and cylindrical tanks are self-supported
All independent tanks are self-supported
At what latest time shall doors, side scuttles, gangway doors, cargo- and coaling ports and other openings which are to be kept closed watertight at sea be closed at the start of the voyage?
Before leaving the pilot station
Before leaving the berth
Before entering open waters
Before leaving the port
In which cases shall side scuttles in passenger ships be so constructed that they cannot be opened without the consent of the master of the ship?
Where the sills are mounted below the bulkhead deck
Where the sills of the side scuttles are below the margin line
Where the sills of the side scuttles are less than 500 mm above the deepest load line
Where the height of the side scuttles go through more than two decks
By what means can we monitor and control the integrity of the hull?
The chief officer is responsible for monitoring the integrity of the hull and superstructure at all times
Let experienced personnel close and secure doors and ramps
Automatic detection systems, television surveillance and patrolling of ro-ro cargo spaces
Documented operating procedures
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
Low voltage ships tend to have insulated neutral systems. What is the reason for this?
If the neutral is not insulated then it may short to other conductors.
It is easier to detect faults
In the event of an earth fault vital equipment will not trip
It is more effective than insulating the live conductor
During a walk around of a stow of refrigerated containers, one of the containers is noted to be quiet and has a red light showing on the control panel. Select, from the options given, the most likely cause of this condition.
The red light indicates that there is power to the container.
The red light indicates that an air change is in progress.
The red light indicates that there is a fault with the container's refrigeration unit.
The red light indicates that there is no power to the container.
Some new maintenance routines are being planned and a risk assessment is necessary so that the required procedures can be entered into the ship's Safety Management manual. Which of the following should be the first step in this risk assessment process?
Identify the safety precautions that may be necessary to prevent injury or harm to personnel carrying out the routines.
Identify who may be harmed or injured in carrying out the maintenance routines.
Identify the hazards that may exist which may affect personnel involved with the maintenance routines.
Identify how much it will cost to implement the necessary precautions to prevent injury to personnel.
Which of the following alternatives summarise the benefits of using high voltage on ships?
More efficient transformers and electrical machines
Smaller cables and better power factors
Smaller conductors, insulators and transformers
Smaller conductors, machines and switchgear
Many water tube boilers feature so called screen tubes. What is the purpose of these screen tubes?
To protect the superheater from direct exposure to the furnace.
To help remove any contaminants from the combustion gas that may foul other parts of the boiler.
To protect the boiler insulation from direct exposure to the furnace.
To provide a gas tight chamber for the furnace.
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.
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
This online test consists of 90 random questions from CES 5.1 tests on a topic of your choice.