Maison Tests en ligne CES Chemical tanker 2nd-Off / 3rd-Off Test online CES 5.1 for 2nd-Off / 3rd-Off, Chemical tanker vessel

Tests en ligne : Test online CES 5.1 for 2nd-Off / 3rd-Off, Chemical tanker vessel

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Question 1 depuis 90

The necessary elements to create fire are

heat and chain reaction

combustible, air, flames and gas

combustible, comburent, flames and chain reaction

combustible, comburent, heat and chain reaction

Which class of fire involves gas?

Class C fire

Class D fire

Class A fire

Class B fire

Tank top in engine room has a high quantity of oil residues floating around. When discovered, what action should be taken?

Open the overboard valve and start the bilge pump.

Start the fire pump.

Notify Ch.Eng., find cause of leakage, remedy the leakage and then immediately start cleaning of the tank top.

Apply foam to the tank top to minimise the risk of fire.

What other purposes may a fixed fire-detection and alarm system be used for, in addition to fire indication? (SOLAS II-2/13.1.14)

Controlled closing of fire doors

Automatic closing of fire doors

Automatic activation of sprinkler system

None

Apart from red, what other colour is frequently used for a CO2 extinguisher?

Yellow

Green

Black

Light blue

*What quantity of service fuel must be available for a diesel driven emergency pump before it is necessary to use any reserve fuel?

To allow at least 12 hours of operation

To allow at least 6 hour of operation

To allow at least 3 hours of operation

To allow at least half an hour of operation

A drip tray containing oil is on fire. The only fire fighting equipment available is a water hose with single jet/spray nozzle. How, if at all, should you attempt to put out this fire using water?

Water should be applied to the oil in a single jet only

The water can be applied in a fine spray starting from the front in a sweeping motion

Water should be applied in a jet to the back of the fire

Water should not be used on any type of oil fire

Via Inmarsat-C a message is sent to an Inmarsat-C mailbox with a positive delivery notification (PDN). The groundstation will:

send a PDN, if the message has arrived in the mailbox

send no PDN’s with messages intended for the mailbox

Don't know

send a PDN, as soon as the message is collected from the mailbox

Regular ‘updating’ of a ships’ position in an Inmarsat-C installation is necessary

To enter the correct data to the disk antenna

To keep to the correct Inmarsat-region

To have the correct position in case of accidents

To inform the satellite of ships position

What kind of fire protection media is required when carrying Isopropylamine ?

Foam that is a "alcohol resistant" type and water spray.

Foam that is not a "alcohol resistant" type and dry chemical.

Water only.

Foam that is not a "alcohol resistant" type and water spray.

In discussing the properties of chemical cargoes, what is the "Odor Threshold" of a product?

The smallest concentration, expressed in parts per million by volume in air, that can be detected by smell by most people.

The maximum concentration of a vapour that can be tolerated without permanent damage to the nasalmembranes.

The temperature at which the vapour pressure a substance is greater than the prevailing atmospheric pressure and vapour is then released into the environment.

The average concentration of a substance to which a worker may be repeatedly exposed for a normal 8 hour working day, 40 days a week, without adverse health effects.

The lowest temperature at which a liquid will give off sufficient vapors to form a flammable mixture with air is known as the:

Lower explosive limit

Flash point

Fire point

Threshold limit value

In addition to personal equipment a fireman's outfit also comprise breathing apparatus and a fireproof lifeline. How many complete sets of fireman's outfit is to be carried by all ships? (SOLAS II-2/17.3)

At least four sets

At least three sets

At least one set

At least two sets

Which of the named ships are not subject to SOLAS regulations?

Cargo ships of less than 500 tons gross

Service vessels

Fish carriers/fish factories

Rescue vessels

Which muscle is the most persevering one in the body?

The lever.

None of the mentioned

The lungs.

The heart.

What corrections must be applied to the echo sounder reading to compare the depth of water with the depth printed on the chart?

The distance between the pulse Transmitter and Receiver

Shallow water effects

Draught of the ship

Allowance for the ships speed

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

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

Your vessel is moving in Panama Canal waters. When must a crew man capable of and ready to operate the anchors be on the forecastle?

When passing through the Gatun Lake

When passing through Gaillard cut

When anchoring in Gatun Lake only

When a Panama Canal pilot is onboard

When should operational checks on navigation equipment be done?

As often as possible

When time allows

When errors are indicated

Regularly, when preparing for sea and entering port

In accordance with GMDSS rules, the frequency 2187.5 kHz is used for:

On scene communication

Distress traffic

Routine message

Distress alerting

Which of the following duties shall be included in the "muster list" as being assigned to crewmembers in relation to passengers ?

ensuring that extra food and water is taken to the survival craft

clearing the escape routes

ensuring that every passenger is provided with an immersion suit or a thermal protective aid

seeing that passengers are suitably clad and have donned their lifejackets correctly

Give the meaning of the following symbol:

lower liferaft to water

evacuation slide

davit-launched liferaft

liferaft without canopy

A floating liferaft is capable of withstanding repeated jumps on to it from a height of at least:

6,50 m

5,50 m

4,50 m

3,50 m

The steps of the embarkation ladder used must be proportioned as it follows:

length = 280 mm, breadth = 85 mm, depth = 10 mm

length = 480 mm, breadth = 115 mm, depth = 25 mm

length = 580 mm, breadth = 165 mm, depth = 30 mm

length = 380 mm, breadth = 145 mm, depth = 20 mm

Which one of the listed requirements regarding thermal protective aids do not correspond to present regulations? The thermal protective aids shall:

permit the wearer to swim a short distance through the water and board a survival craft

cover the whole body except the face of a person wearing a lifejacket

permit the wearer to remove it in water in not more than two minutes

be unpacked and easily donned in a survival craft without assistance

*How much food per person is supplied on a liferaft marked SOLAS B PACK?

Not less than 10000 kJ

Not less than 5000 kJ

None

Not less than 20000 kJ

*Each person the liferaft is permitted to accommodate for is provided with a quantity of water of:

2,5 l

15 l

1,5 l

5 l

How many two-way VHFs is required for ships over 500 brutto?

3 sets

One per lifeboat and one spare

1set

None

Which of the following detailed explanations should be mentioned in the Training Manual ?

The use of navigational equipment for survival crafts

The use of escape routes and other escape methods

The use of surface to air visual signals to be used by survivors

The use of engines and accessories

The muster list shall show the duties assigned to crewmembers in relation to passengers in case of emergency. Which of the following duties do not necessarily have to be included in the muster list? The duties shall include:

ensuring that every passenger is provided with an immersion suit or a thermal protective aid

ensuring that a supply of blankets is taken to the survival craft

seeing that passengers are suitably clad and have donned their lifejackets correctly

assembling passengers at muster stations

Welding and burning are among the factors which give the highest risk of fire on board ships. Precaution has to be taken to avoid this risk. Which of the following safety rules may be regarded as the most important?

The welder shall have been instructed in the use of the ship's welding plant.

Only use electrodes from a well-known manufacturer.

Only holders of welding certificates shall be allowed to carry out welding on board ships.

Electric welding plants shall be controlled by a responsible engineer before use.

Indicate the correct name for the tool on the sketch:

Grinding machine

Flat file

Chisel

Pliers

Under MARPOL 73/78 what category would wet kraft paper remaining on board, constitute?

Marine Pollutant

Garbage

Cargo residue

Waste

What is the correct definition of: - a mooring line?

A line for a block.

A line for the ancher.

A loop in a rope.

A thick rope to tie up the ship.

The typical current gain of a common emitter transistor is

10-200

500-5000

1-1000

1-10

What is known as "cargo sweat" on a Bulk Carrier?

Condensation of moisture directly onto the ships structure

Condensation of moisture directly onto the cargo

Condensation of moisture onto the ships structure and cargo

Heating of cargo

The data logger on a reefer vessel normally records temperatures for air delivery, air return and cargo pulp. How would the air delivery and return temperatures be expected to vary during the first few days of carrying a cargo of citrus fruit which had not been pre-cooled before loading?

The difference between the two temperatures would steadily increase.

The difference between the two temperatures would remain constant.

The two temperatures would remain constant

The difference between the two temperatures would steadily reduce.

What is the main problem associated with a bulk cargo suffering moisture migration and developing a flow state

The may block up bilges

The cargo pile will remain stable

The cargo becomes semi-liquid and shifts easily causing major stability problems

The cargo may produce carbon dioxide gas

Ballast introduced into a cargo tank on a chemical tanker which has been washed to such an extent that the ballast contains less than 1 ppm of the substance previously carried may be discharged into the sea without regard to the discharge rate, ship's speed and discharge outlet location, but under certain conditions. What are those conditions?

That the vessel is not less than 50 miles from the nearest land and is proceeding on route.

Provided the ship is underway and a sample of the ballast water has been drawn from the tank and is stored on board, there are no additional conditions to be imposed on such a discharge.

That the discharge is passed through the Oil Discharge Monitoring Equipment and a visual watch is maintained on the vessel's wake.

That the vessel is not less than 12 miles from the nearest land and is in water that is not less than 25 metres deep.

When lowering a RoRo Cargo Side or Stern Ramp what must be ensured ?

The ramp surface must be clean

The ramp must be lowered by the duty officer only

The vessel is securely moored and there is nothing beneath the ramp

Which of the following kinds of fish is the least perishable in cold storage?

Herring

Salmon

Halibut

King klip

A sudden or gradual increase of the chloride content in the freshwater cooling indicates:

Leakages from seawater coolers

Leakages from oil coolers

Exhaust leakage

Low concentration of corrosion inhibitors

Too high exhaust temperature in one cylinder becomes because of:

Charge air temperature is too high.

Water leakage in the cylinder.

Too much lubricating oil in the cylinder.

Injection valve opening pressure is too low.

When refitting the bolts into a flange on a steam line how should the bolts be prepared so that they can be easily removed next time maintenance is required?

Coat the threads in graphite based grease.

Fit the bolts dry with a spring washer.

Apply thread tape to the bolt threads.

Coat the threads in general purpose grease.

After carrying petcoke why would the discharge of cargo hold washing have to be restricted?

Because the cargo residue may not pass through the ship’s bilge system

Because the cargo hold washing would constitute an Oily Mixture

Because the cargo hold washing would constitute a Marine Pollutant

Because the cargo residue may damage the ship’s bilge system

What is Standardized Cargo?

Break bulk cargo of standard dimension

Cargo for which the ship is provided with an approved securing system

Cargo that is shipped in standard dimensions

Cargo shipped on pallets

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.

During bilge pumping operations the pump suction gauge indicates a high vacuum. What is the most likely cause of the high vacuum reading?

Leaking pump gland.

A glogged bilge strainer.

A hole in the suction line.

Broken suction gauge.

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?

Every oil tanker of 5,000 tonnes deadweight and above delivered on or after 1 February 2002 shall comply with intact stability. What is the minimum GM (metacentric height) when the vessel is in port?

Not less than 0.015 m

Not less than 0.25 m

Not less than 0.10 m

Not less than 0.15 m

Select the option which best completes the following statement. "When carrying out repairs to damaged hatch gratings it is best to use…

…galvanised crosshead screws."

…galvanised nails."

…mild steel nails."

…mild steel screws."

Is there any requirements regarding double bottom for large passenger ships?

Yes, in ships of 76 m in length and longer, a double bottom shall be fitted amidships, and extend to the fore and aft not less that ? of the ship length.

No, a double bottom is not required

Yes, in ship of 76 m in length and upwards, a double bottom shall be fitted amidships, and shall extend to the fore and after peak bulkheads, or as near thereto as practicable.

Yes, a double bottom shall be fitted amidship

What would it imply if at the discharge port cargo was found contaminated by a previous cargo?

That cargo interests will refuse to accept the cargo

That the vessel was unseaworthy when the voyage commenced

That the vessel will be arrested by cargo interests

That the vessel will be detained by port state control

Which statement is correct for a fire door class "A-60"?

Class "A-60" fire doors shall prevent the passage of smoke and flame and the average temperature of the unexposed side shall not rise more than 180 degrees Celsius within 60 minutes

Class "A-60" fire doors shall be capable of preventing the passage of flame for minimum 60 minutes

Class "A-60" fire doors must be closed within 60 seconds

It is a requirement to keep class "A-60" fire doors closed for minimum 60 minutes

With reference to non-VIT diesel engine high pressure fuel pumps that have helix control, how is the timing of fuel injection normally adjusted?

By raising or lowering the pump plunger relative to the pump barrel.

By rotating the pump plunger relative to the pump barrel.

By changing the governor output signal.

By changing the opening pressure setting for the fuel injection valves.

Did he study the contract in every detail before he signed it?

Of course he did, because he had to make sure that he could return home again.

No, he merely tried to be put ashore for medical treatment.

No, despite the fact that he promised to carry out several duties.

Yes, he wanted to see that everything was according to agreed terms.

What gives the condenser pressure in a 1 stage direct cooling plant?

One, two and three stage piston compressors.

One, two and three stage screw compressors.

Piston, screw and centrifugal type compressors.

Oil free screw and centrifugal type compressors.

Fluid flow is measured using a pneumatic differential pressure transmitter and is indicated on a direct reading instrument. The indicator is reading zero even though fluid is flowing through the system. When the flow rate changes the indicator initially registers a reading but then gradually returns to zero. From the options given select the probable cause of this condition.

The connection to the differential pressure transmitter low pressure bellows is blocked.

Diaphragm in the differential pressure transmitter is perforated.

The I/P converter is faulted.

The connection to the differential pressure transmitter high pressure bellows is blocked.

If a recipe requires that a dish be "poached", what does this mean?

Wrapped in foil and baked.

Cooked gently in a simmering liquid.

Lightly pan fried.

Turned frequently under a grill oven.

Use Kirchoff's voltage law and Ohm's law to calculate the voltage V(2) across the resistance R(2).

0,75 V

2 V

4,5 V

6 V

A very sensitive and valuable commodity is loaded into refrigerated container which is more than 12 years old. The container has been 'pre-tripped' with all routine maintenance having been carried out to the refrigeration plant and sensors with parts being replaced as necessary and all functions appear normal. Which aspect of using this container is most likely to cause problems during the voyage?

Degradation of the insulation due to the age of the container leading to excess heat transfer through the walls.

The accuracy of the control system of the refrigeration plant.

The age of the refrigeration plant.

The type of gas used in the refrigeration plant.

What would the Chief Officer require prior to the vessel's departure from the berth?

Prior to the vessel's departure from the berth, the Chief Officer would require the anchor to be thoroughly secured

Prior to the vessel's departure from the berth, the Chief Officer would require the crew to prepare for the voyage

Prior to the vessel's departure from the berth, the Chief Officer would require the Bo's'un to oil the moving parts of the windlass

Prior to the vessel's departure from the berth, the Chief Officer would require the windlass to be covered

What do you understand by: Rig the accommodation ladder in combination with the pilot ladder?

Rig the accommodation ladder in combination with the pilot ladder means: lower the gangway and rig the pilot ladder from the gangway

Rig the accommodation ladder in combination with the pilot ladder means: lower the accommodation ladder and rig the pilot ladder right next to it

Rig the accommodation ladder in combination with the pilot ladder means: lower the gangway

Rig the accommodation ladder in combination with the pilot ladder means: lower the gangway and rig the pilot ladder forward of the accommodation

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

Abeam is defined as B on the figure

Abeam is defined as C on the figure

Abeam is defined as A on the figure

Abeam is defined as D on the figure

How can the pressure be regulated during start up of a positive displacement pump such as a gear pump?

By throttling the discharge valve

By throttling the suction valve.

Positive displacement pumps operate at constant pressure and cannot be regulated.

Adjustment of the pressure relief valve to recirculate part of the flow.

Which of the following options is the most likely cause of high exhaust gas temperatures in all cylinders of a diesel engine?

Water in the fuel supply.

Partial blockage in the exhaust gas system.

Worn or broken piston rings.

Faulty high pressure fuel pump on one of the cylinders.

A new joint is required for a sea water pipe flange and there are no ready made spares. What is the best method for making a new joint from a sheet of rubber insertion?

Use the old joint as a template to mark out the new joint on the sheet of rubber insertion and cut out the joint with scissors.

Cut a piece of rubber insertion with a hole in the middle roughly to size and fit it between the flanges. Hammer the bolts through to get the bolt holes in the correct position.

Measure the flange diameter, PCD and bore using a ruler and callipers and then use jointing scissors and hole punches to form the new joint.

Cut a piece of rubber insertion from the sheet and use a hammer to knock out the holes for the bolts and the bore against the flange.

When will the Longitudinal Bending Moments caused by the cargo distribution need to be taken into account on an oil tanker?

Only during loading and discharging cargo

During loading, discharging and on loaded passage

Only when on passage in heavy seas and when the vessel is pitching

All the time

What does the Captain think about the Chief Mate's question?

He wants the OS to train as helmsman today, because they are sailing in open waters and there is not much traffic in the area

He does not want to train the OS as helmsman because there is too much traffic in the area

He does not want the OS to go on watchkeeping duties next week because they are sailing in open waters

He thinks, it is not a bad idea to sail in open waters because the traffic in sparse

How often shall liferafts be serviced?

Decided by the safety officer

At intervals not exceeding 12 months

At intervals not exceeding 18 months

Every second year

What will happen when you start a centrifugal pump with the delivery valve closed?

The starting load on the motor will cause overload.

The pump will lose suction.

The delivery pressure will be large causing the relief valve to open.

The starting load on the motor will be minimum.

What is ‘Design Load’?

The total weight of cargo

The total weight of cargo subject to athwartships and longitudinal accelerations

The total weight of cargo subject to vertical accelerations

Loads for which the ship’s decks and hatchcovers are designed

What is the Maximum Securing Load of new fibre ropes?

25% of the breaking strength

30% of the breaking strength

33% of the breaking strength

40% of the breaking strength

What is the correct sequence of washing a cargo hold?

Saltwater wash, freshwater rinse, dry, sweep

Freshwater wash, saltwater rinse, dry, sweep

Sweep, freshwater wash, saltwater rinse, dry

Sweep, saltwater wash, freshwater rinse, dry

What is the maximum allowable tank design pressure in the vapour space for Independent tanks type "A"?

0,3 barg

0,25 barg

0,7 barg

0,5 barg

Settlement of disputes, not belonging to the category of the NIS Act, outside Norway between the master and any of the crew regarding wages, the ship service or the employment relationships in general shall be brought before:

The local trade union

The local P&I club.

The Norwegian Consulate

The local authorities

Compressed air for instrument and control purposes needs to be of high quality. In order to condition the air filter modules are usually fitted to remove the contaminants. If there is evidence of oil carry over to the final elements in the instrumentation air system what is the most likely cause?

The coalescer module is saturated and requires renewal.

The drier section of the module needs to be regenerated.

The air compressor piston rings need to be renewed.

The particle removal module is choked.

During the normal operating cycle of a diesel engine there are side thrusts generated by the piston as it moves up and down the cylinder due to the changing angle of the connecting rod. How are these side thrusts accommodated in a trunk piston engine?

The side thrust is transmitted to the cylinder liner and the engine frame by the piston crown.

The side thrust is transmitted to the cylinder liner and the engine frame by the piston rings.

The side thrust is transmitted to the engine frame by the crosshead bearing.

The side thrust is transmitted to the cylinder liner and the engine frame by the piston skirt in way of the gudgeon pin.

What would affect the proper functioning of a bridge fitting?

Pitting

A fully extended spindle

Lack of grease

Buckling

When cleaning boiler burner nozzles that have just been in service the watch rating notices that the nozzle holes are partially blocked. Which of the methods given in the options is the preferred method to use in order to avoid damaging the nozzle holes?

Poke the holes clear with a welding rod which has been ground down to size.

Knock the nozzle repeatedly on the work bench to try and dislodge the blockage.

Use a standard drill bit in a hand drill to clear the blockage.

Use cleaning wires starting with a small gauge and gradually work up to the full size of the nozzle hole.

All liquefied gas carriers, including LNG carriers, must comply with the requirements of the IMO Gas Codes. Which certificate confirms compliance with the Gas Code requirements?

Cargo Ship Safety Equipment Certificate.

Cargo Ship Safety Construction Certificate.

Loadline Certificate.

Certificate of Fitness.

Which is the preferred state to have the main turbine in while shutdown for a short stay in port?

Left with autospin operating to give periodic turning.

Gland steam left on to keep the rotor and casing warm and with turning gear switched off but engaged to 'lock' the rotor in position.

Turning with the turning gear and gland steam on.

All steam shut off with turning gear switched off but engaged to 'lock' the rotor in position.

Where will you find instructions on how reduce or control an oil spill during bunker operations on a General Cargo vessel?

In the company's safety manual

In the Shipboard Oil Pollution Emergency Plan (SOPEP)

In the oil record book

In SOLAS 74/88

What factors do you consider as important before mooring a vessel?

Use of proper Personal Protective Equipment, Well maintained mooring equipment, Make sure the area is tidy and clean, Mooring stations should have effective hazard markings/ hazard highlighting, Stay clear of mooring ropes/wires, Be aware of Snap-back Zone, Proper procedures, Effective communication

Use of proper Personal Protective Equipment, Mooring stations should have effective hazard markings/ hazard highlighting, Stay clear of mooring ropes/wires, Be aware of Snap-back Zone, Proper procedures

Use of proper Personal Protective Equipment and be aware of Snap-back Zone

Use of proper Personal Protective Equipment

Achieving a good air flow through the various cargo compartment of a reefer vessel is a principal design aim of a Naval Architect. Which of the options given represents the optimum cargo space shape?

A flared space that would be found in a forward upper deck.

A narrow tapered space as would be found in a forward lower deck.

A long oblong space as would be found in an after upper deck.

A square space as would be found in a midships lower deck.

You are to load a cargo ofIsocyanate to tank 4CP and the cargo hose from shore is to be connected to a flange directly adjacent to the cargo pump, so that the manifold cross-over and deck cargo line are not used. What must you place underneath the connection?

Some sawdust or other absorbant material.

A red flag.

A portable drip-tray.

A label stating "portable connection".

What is the required number of temperature indicating devices in cargo tanks?

One device in each tank.

At least two devices in each tank.

There is no requirement to number of devices.

At least three devices in each tank. One placed at the bottom of the tank, one in the middle of the tank and one near the top of the tank.

What is meant when a vessel is said to have sinkage?

Sinkage is the extra draft a vessel obtains when she is comparatively heavily loaded amidship.

Sinkage is the deepest draft a vessel obtains aft when moving through the water.

Sinkage is the extra draft a vessel obtains when she is comparatively heavily loaded both ends.

Sinkage is the change in draft a vessel obtains when moving through the water.

In the international code of signals what does this flag mean?

You should stop your vessel and watch for my signals

You are running into danger

I am manoeuvring with difficulty - Keep clear of me

I am in distress and require immediate assistance

Ce test en ligne se compose de 90 questions aléatoires issues des tests CES 5.1 sur un sujet de votre choix.