Maison Tests en ligne CES Chemical tanker MASTER / Ch-Officer Test online CES 5.1 for MASTER / Ch-Officer, Chemical tanker vessel

Tests en ligne : Test online CES 5.1 for MASTER / Ch-Officer, Chemical tanker vessel

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Question 1 depuis 90

Which one of the following appliances is allowed to burn an oil fuel, the flash point of which may be a little bit lower than the one used for the main *engine?

The incinerators

The emergency generators

The inert gas generators

All the answers are wrong

Which one of the following is a limitation on the use of chemical powders?

In some cases they may cause a violent reaction on combustible metals such as sodium

Some of them may give off NH3

All the below mentioned alternatives

They may put an insulating deposit on electronic equipment

*What is the factor that makes the difference between a deflagrating and a detonating explosion?

The initial pressure, temperature and moisture content

The material which is at the origin of the explosion (powder or gas)

The speed of the shock wave created by the initial combustion

The confinement of the place where the explosion occurs (inside or outside)

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

A safety valve is sufficient to prevent a BLEVE.

Wrong: it depends on the product

Wrong in all cases

Wrong, if the valve is wrongly set

Right in all cases

According to their physical state, extinguishing agents may be classified:

Synthetic, proteinic, gases and liquid

Proteinic and synthetic

Solid, proteinic and gases

Solid, liquid and gases

You are leading a team fighting an interior fire. If you see the colour of the smoke changing from dark black to grey, what is the most probable reason for that change?

the team has started to ventilate

the percentage of oxygen is getting below 15%

The team is applying water and the temperature is decreasing

the temperature inside is increasing

*According to the SOLAS definition, what is an incombustible material?

A material that neither burns nor gives out flames when it is exposed to the standard fire test for 30 minutes

A material that neither burns nor emits flammable fumes in such a quantity as to experience ignition, when the temperature rises to 750 ?C

A material that is made out of steel or equivalent material

A material that neither burns nor gives out flames when it is exposed to the standard fire test for 1 hour

*What is the maximum length for a dead-end corridor on a cargo ship?

8 m

10 m

In case of diesel driven fire pumps, for how long shall the fuel tank capacity allow the pump to be run at full capacity? (SOLAS II-2/4.3.3.2.3)

Six hours

Fifteen hours

One hour

Three hours

The whip-antenna of the MF transceiver was lost in bad weather. The MF-transceiver can be used again:

If the whip-antenna is replaced by an antenna of about the same length as the original one

Only if the whip antenna is replaced by another whip-antenna of the same length

If instead of the whip-antenna, another whip-antenna such as the spare VHF antenna is connected

If the whip-antenna is replaced by a Sat C antenna

What comprises an INMARSAT-A subscriber number?

Nine digits beginning with a four (4).

Nine digits beginning with a three (3).

Seven digits beginning with a one (1).

Nine digits beginning with the country code associated with the country in which the vessel is registered.

What should a complete set of safety equipment at least consist of (required by IBC/BCH in addition to Solas) ?

One self-contained air breathing apparatus (Not using stored oxygen), protective clothing, boots, gloves and tight-fitting goggles, chemical resistance lifeline and explosion-proof lamp.

One self-contained air breathing apparatus (Not using stored oxygen) and protective clothing, boots, gloves and tight-fitting goggles.

One self-contained air breathing apparatus.

One self-contained air breathing apparatus (Not using stored oxygen), protective clothing, boots, gloves and tight-fitting goggles, fire and chemical resistance lifeline and explosion-proof lamp.

A coated tank holds 400 tons of sea water when filled. How many tons of liquid of liter weight 0.9300 will it hold when filled to 90% capacity?

390.2 Mt

326.6 Mt

343.2 Mt

377.6 Mt

When carring a cargo in a tank which not requires any heating, what should be done with the heating coils prior loading ?

The should be blown completely dry by the use of air or nitrogen.

The coils should be blanked.

The should be blown completely dry by the use of air or nitrogen and then blanked.

The coils should be filled with water and blanked.

You are serving on a 5 year old chemical tanker. You are called upon to order a portable blower for ventilation of DB tanks, cofferdams & pipe tunnels prior entry & during inspection.You would order a blower of capacity:

Able to effect a complete change of air of the space being ventilated 16 times an hour?

Able to effect a complete change of air of the space being ventilated 12 times an hour?

Able to effect a complete change of air of the space being ventilated once an hour?

Able to effect a complete change of air of the space being ventilated 4 times an hour?

What does the term OIL mean, as used in the Oil Pollution Regulations?

Sludge

Oil refuse

Fuel oil

All of the mentioned

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.

What is the search system pattern called using 1 vessel?

Sector System

Lonely System

Single System

Square System

The vessel has anchored. You are to secure the anchor. How do you do it?

By use of the brake on the winch with the motor in gear.

By use of the brake on the winch.

By use of securing wires and brake.

By use of cable stopper backed up by brake with chain slightly slack between stopper and winch.

If a shipping company wants to be attractive to clients, it must be able to provide?

Provide efficient and reliable service

Safe operation

Provide minimum loss

On schedule operations

According to the rules of GMDSS vessels one must be able to receive MSI with the aid of:

HF and VHF DSC-encoders

Don't know

EPIRB and SART

NAVTEX and EGC-receiver

An area A2 is:

an area excluding sea area A1 within the radiotelephone coverage of at least one MF coast station in which continuous watch on 2182 kHz is available

an area excluding sea area A1 which extend to 100 nautical miles from the coast stations

an area within the radar coverage of at least one MRCC in which a continuous DSC alerting is available

an area excluding sea area A1 within the radiotelephone coverage of at least one MF coast station in which continuous DSC alerting is available

" On area A4 the function "" Transmission and reception of on scene communications"" is mainly based on:"

the use of HF DSC

the use of MF and/or VHF R/T

the use of SARSAT COSPAS Epirbs

the use of MF and/or HF R/T

What statement is correct with frequency modulation?

The amplitude fluctuating an LF-rhythm

The amplitude remain constant

The frequency is constant

Frequency modulation is often applied in the maritime VHF-range (band)

The wave length of a radio signal in the ether is mainly determined by:

frequency

propagation speed

Don't know

weather conditions

What transmission-mode must be used with NBDP?

J2B / F1B

E mail

J3E

G3E

An area A2 is:

an area excluding sea area A1 within the radiotelephone coverage of at least one MF coast station in which continuous watch on 2182 kHz is available

an area excluding sea area A1 within the radiotelephone coverage of at least one MF coast station in which continuous DSC alerting is available

an area excluding sea area A1 which extend to 100 nautical miles from the coast stations

an area within the radar coverage of at least one MRCC in which a continuous DSC alerting is available

How many maintenance methods must be provided by ships sailing in area A1 and A2

The wearer of a lifejacket can jump into the water without injury and without damaging the jacket from a height of at least:

7 m

4,50 m

12 m

10 m

Which one of the listed requirements regarding inflatable liferafts corresponds to present regulations? Every liferaft shall be so constructed that:

in the event of capsizing it will automatically attain a position providing an above water escape

when floating in the inverted position it can be righted by one person

it's canopy has viewing ports in all directions

have at least two entrances

Which one of the listed requirements regarding rigid liferafts do not correspond to present regulations? The liferaft shall have:

floor preventing the ingress of water

all entrances fitted with rigid boarding ramps for boarding the liferaft at sea

a manually controlled lamp fitted inside the liferaft

a manually controlled lamp, visible of at least 2 miles, fitted at the top of the canopy

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)

Who is the leader of the lifeboat drill (abandon ship drill)?

The appointed lifeboat commander

The first member of the crew arriving at the survival craft

Senior deck officer

Senior engine officer

*Which one of the following items has to be included in an abandon ship drill?

Launching and recovery of a survival craft

Starting and operating radio life-saving appliances

lowering of at least one lifeboat after any necessary preparation for launching

Manoeuvring the lifeboat in the water

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

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 drogues

The use of navigational equipment for survival crafts

What material should boiler suits be made of?

Cotton

Wool

Nylon

Asbestos

How can the error of the Gyro compass be determined?

By using any of the methods in the suggested answers

By taking the radar bearing of an object when the radar is on a compass stabilised mode and comparing it with the bearing on the chart of the same object

By taking a transit bearing with the gyro compass of two prominent fixed shore objects and comparing it with the bearing of the same objects on the chart

By comparing the course readout on the GPS with the gyro course steered.

Passenger ships have a normal requirement of 1 lifejacket per person + 10% for children. In addition to this, how many lifejackets have to be stowed in conspicuous places on deck or at the muster stations?

10% extra

25% extra

5% extra

50% extra

Which of the following knife types has a flexible blade, a round tip and is used for removing items from baking trays or spreading fillings and icing?

A griddle slice.

A paring knife.

A utility knife.

A palette knife.

Generators work on the principle of electromagnetic induction. The internal e.m.f. generated in the phase windings of an a.c. generator is controlled by:

The internal volt drop and the residual magnetism.

The internal volt drop and the load current.

The diesel speed and excitation current.

The diesel speed, magnetising force and load current.

How are the various zones and spaces on an LNG carrier normally designated in relation to having cargo vapour hazard?

Gas-hazardous and Gas-safe.

Gas-filled and Gas-free

Gas-dangerous and Gas-safe.

Gassed-up and Gassed-down.

What would you suspect has happened if the lubricating oil for an air compressor has a milky white appearance?

Water contamination of the oil.

Wrong grade of oil has been used.

Oil temperature has been too high.

Air contamination of the oil.

A deck patrol notices that a cargo space carrying refrigerated cargo under controlled atmosphere (CA) is not padlocked shut. Select, from the options given, the main reason why such a space should be kept locked.

It is a requirement of the ship security plan that such spaces should be locked.

To prevent unauthorised entry into the space because of the hazard risk due to low temperature in the space.

To prevent unauthorised entry into the space because of the hazard risk due to the low oxygen content of the controlled atmosphere in the space.

To minimise the occurrence of pilferage of a valuable cargo.

Who is responsible to ensure that all personnel on board are provided with suitable Personal Protective Equipment where it is needed?

The Head Department

The Master

The Company/ employer

The safety officer

s it required that the PA-system (Public Address) is connected to a back-up power sypply?

No, the crew will inform the passengers in case of any black out or power failure

Yes, only if the voyage is more than 12 hours

Yes, the public address system shall be connected to the emergency source of power

What action should be taken if machinery does not function properly?

If machinery does not function properly, its condition should be noted and plans for further action developed together with the Chief Engineer

If machinery does not function properly, the operational parameteres should be verified and the machinery stopped

If machinery does not function properly, it should be serviced immediately

If machinery does not function properly, the Chief Engineer should be consulted

What precaution is to be taken when the Engineer on Duty is entering an UMS-mode operated engine room due to an alarm or due to a scheduled routine check?

Switch the UMS selector switch to manual mode and engage the "dead man alarm"

Leave the UMS selector switch in UMS-mode

Switch the UMS selector switch to manual mode only

Any of the mentioned alternatives will meet the requirements.

A new gasket has been fitted to the manhole cover of a ballast tank. Which of the options given would be a suitable test that the new gasket is correctly fitted?

Carry out a hose test on the manhole cover.

Carry out an air pressure test on the ballast tank.

Fill the tank with water up to capacity.

Fill the tank with water until it overflows through the air vent.

Which of the following ship motions complements the natural springing tendency of Ro-Ro cargoes?

Heaving

Yawing

Surging

Roling

Is it required that the PA-system (Public Address) is connected to a back-up power sypply?

No, the crew will inform the passengers in case of any black out or power failure

Yes, only if the voyage is more than 12 hours

Yes, the public address system shall be connected to the emergency source of power

From the options given, choose the one most likely to result in a high exhaust gas temperature in one cylinder of a diesel engine.

The inlet and exhaust valve tappet clearance is incorrect.

Fuel injection valve opening pressure set too high.

Faulty turbo charger.

Clogged nozzle holes in the fuel injection valve.

What type of heat exchanger is shown?

Evaporative

Bundle and stack

Plate

Shell and tube

A conventional reefer vessel is loading cargo of palletised fruit under controlled atmosphere (CA). Which of the given options is it essential that the deck officer confirms at completion of loading and before applying CA to the cargo?

All of the cargo hatches are sealed properly.

All of the cargo hatches are closed properly.

All personnel are out of the cargo holds.

That there is a tight stow in the cargo hatches.

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.

Which of the following type of crude oil requires special consideration in terms of carriage and cleaning?

Medium Crude.

Paraffinic Crude.

Reconstituted Crude.

Sweet Crude.

Apart from longitudinal, transverse and vertical accelerations what else must be taken into account when calculating the external forces acting on a cargo unit?

Vertical and transverse forces by wind pressure

Longitudinal and vertical forces by wind pressure

Longitudinal forces by sea sloshing

Longitudinal and transverse forces by wind pressure

How would you arrive at the ‘Stowage Factor’ of a carogo commodity?

By dividing the volume of the space by the tonnage of the commodity

By dividing the area of the space by the tonnage of the commodity

By dividing the gross tonnage of the space by the area of the commodity

By dividing the gross tonnage of the space by the volume of the commodity

With two alternators running in parallel, you wish to disconnect one. The first step is to:

Make sure the load is evenly shared

Trip the main circuit breaker

Remove the load from the alternator to be stopped

Increase the frequency on the switchboard

You are experiencing large hunting on the fresh water cooling system. What is the reason?

The cooling water temperature is too low.

The expansion tank is empty.

You have a cracked liner, or cover.

The fresh water circulating pump is worn out.

A general cargo vessel is loading to summer loadline marks; where should be the final level of water ?

The top of the winter mark

The mid point between the summer and the tropical mark

The bottom of the summer loadline mark

The top of the summer loadline mark

Master of every ship must provide:

Facilities to conduct training whenever required by the training officer

Proper rest to the crew after each training programme

the training during crews working hours only

A link between the shipboard training officer and the company training officer ashore

What is the main purpose of 'gassing up' the cargo tanks of an LNG carrier?

To ensure a uniform temperature in the cargo containment system prior to loading.

To remove IG tank atmosphere with warm cargo vapour prior to loading the cargo.

To avoid a pressure rise in the liquid dome during loading.

To bring the cargo containment system to a temperature which will prevent excessive boil off during loading.

Inert gas drawn from an in-line unit in the main or auxiliary boiler exhaust cannot normally be used in a chemical tanker carrying high-spec products. Why is this?

Because MARPOL severely restricts the cleaning to sea of tanks that have been inerted in this way, unless additional prewashing has first been carried out. This results in the generation of slops which reduce cargo carrying capacity and incurs disposal costs.

Because the gas drawn from such a source cannot be guaranteed to be below the Lower Explosive Limit.

Because the levels of hydrocarbons and suspended soot particles will have a significant negative impact on cargo quality and tank cleanliness.

Because connection between boiler exhaust systems and cargo containment arrangements is forbidden under the IBC Code.

Radio frequency signals can carry information from one place to another if they are modulated. There are several ways to modulate a carrier. Which modulating method is illustrated here?

Frequency modulation (FM)

Pulse-code modulation (PCM)

Amplitude modulation (AM)

Pulse-width modulation (PWM)

For what purpose is inert gas normally used in the cargo tanks of a liquefied gas carrier?

To maintain an inert atmosphere in the tanks during a loaded voyage.

To prevent an explosive atmosphere forming in the cargo tanks before gas freeing.

To pressure test the cargo tanks after repair work.

To help displace the cargo from the tanks during discharge.

What precaution should be taken when painting on car decks during cargo operations?

There must be an established means of communication between crew members and the duty officer

Spray paint guns must not be used

Cargo hold fan inlets must be closed near the paint area

Permission must be obtained from the harbour authority

In the context of ship design, what does the abbreviation "OBO" stand for?

Ordinary Blend Oil

Ore Bulk Oil

Oil Bulk Overall

Only Bulk Ore

In a heat exchanger where seawater is used to cool fresh water, the seawater pressure should be maintained lower than the freshwater pressure to:

Minimize the load on the seawater pump

Eliminate scaling problems on seawater side

Reduce erosion

Prevent contamination if leaks are developed

To what Proof Load is a 30T SWL derrick tested?

38T

35T

40T

33T

Complete the following statement from the options given. 'Following maintenance work to a single element, feed water regulator for a steam boiler it is necessary to...

..apply lagging to the whole device.

..apply lagging only to the parts that can be touched by personnel.

..apply lagging to the water connection only.

..apply lagging to the steam connection only.

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.

You are in charge of discharging and crude oil washing. What is the maximum allowed oxygen level measured in the middle of the ullage space in a tank during crude oil washing? (IMO Reg)

10%

What advice would a harbour pilot give the Master?

A harbour pilot would advise the Master to have the steering gear tested

A harbour pilot would advise the Master to single up to one line and back spring, fore and aft

A harbour pilot would advise the Master to request port control for permission to leave the berth

A harbour pilot would advise the Master to ensure that the crew is on stand-by

A bulk carrier is about to commence loading steel coils using ships cranes, what three important checks must be made?

Cabs cleaned and lighted, drivers regularly rested

Crane windows cleaned,cab heater on and no- smoking rule enforced

Crane controls tested, limit switches correctly set and SWL never to be exceeded

Planned maintenance completed, all paintwork in good condition and lighting checked

How often shall watertight doors in main transverse bulkheads which is in use at sea be operated (tested)?

Daily

Every month

Every two weeks

Weekly

Why must draught marks be read on both port and starboard sides of a bulk vessel when accurate draughts are required

The vessel marks may be incorrectly drawn

The vessel may appear up right but often will be found to have a slight list when port and starboard marks are compared

The vessel may be trimmed by the head

The draught reading on one side of the vessel sufficient

During 'dry lay up' of a main water tube boiler it is necessary to maintain dry, low humidity environment in the water spaces. Which of the chemicals given in the options would best achieve this condition?

Sodium hydroxide.

Calcium phosphate.

Silica gel.

Hydrazine

How do we control the cargo tank pressure whilst we are at sea?

Whilst at sea we control the cargo tank pressure by use of inert gas system.

Whilst at sea we control the cargo tank pressure with the cargo cooling plant.

Whilst at sea we control the cargo tank pressure by use of cargo pumps and cargo heater.

Whilst at sea there is no way to control the cargo tank pressure.

Select from the options given the one which best completes the following statement. "Reefer vessels, loaded with a homogenous cargo, usually operate with a small GM due to the fact that…

…they are designed with small fuel tanks."

…they are designed with fine lines and the biggest cargo spaces are at the top of the holds."

…they are designed that way to produce a gentle rolling motion."

…they usually have large deck cranes."

What is the room often called where the crew eat their meals?

The crew cafe

The crew mess

The crew galley

The crew restaurant

What is class "A" division

Bulkhead constructed of steel, suitably stiffened and insulated so as to be able to meet a prescribed fire test of one hour duration

Bulkheads used to divide a vessel in different parts

Bulkhead used to divide a ship horizontally

Bulkhead to divide accommodation from the cargo spaces

You have just loaded a cargo of Toluene and are about to clear the lines into the ship. What particular hazard must you be aware of with this product?

It is a carcinogen but has a relatively high odor threshold value. Personnel may not readily detect any vapour that is ejected through the vent risers and should therefore use filter masks while this operation is in progress.

It is a static accumulator and settling time must be allowed before gauging.

It has a relatively high freezing point and additional line blowing will be required to ensure the vessel's lines are completely clear.

It has a relatively low density. Tanks which are close to maximum filling are especially liable to overflow during the line clearing operation unless the flow of blowing medium is strictly controlled.

What do you understand by the term “Risk Assessment”, and how would this be carried out on board?

States than when work has a degree of risk that the work is not carried out

Requires a great deal of preparation and involves recording everything on paper

Identify the hazards, quantify the risks, put control measures in place, monitor the work activity and review

Identify the hazards and specify the personal protective equipment that would be required to complete the work

What are twistlocks designed for?

To couple containers horizontally

To couple containers vertically

To bear container loads

To lock containers vertically and horizontally

If a leak starts from a flange joint during cargo discharge, which of the following should you do?

Attempt to tighten the bolts on the flange. If the leak continues, place a container underneath the leak and ensure it is emptied into a slop tank or drum at regular intervals.

Attempt to tighten the bolts on the flange. Report the gasket as defective at the handover of the watch and leave a note in the Cargo Control Room to replace it at the end of discharge.

Report the leak to the Responsible Officer. Depending on the pipeline arrangement, stop the discharge, or isolate the section of pipeline concerned and releive the pressure inside the pipeline. Put on the appropriate personal protective clothing and equipment. Attempt to tighten the bolts on the flange. Resume discharge with caution. If the leak continues, stop the discharge and change the gasket. Clear any cargo spillage according to the applicable recovery procedure.

Attempt to tighten the bolts on the flange. Spread sawdust underneath the leak. Clear contaminated sawdust away at regular intervals and replace with fresh sawdust as necessary.

What will you do if you are helmsman and the OOW (officer on watch) gives you the order: “Port 20” and after a while the order: "Ease to 10"?

Turn the wheel until the rate of swing of the ship is 20 degrees per minute and then after the second order, reduce the wheel to make it swing at only 10 degrees per minute

Change the compass course to a new heading which is 20 degrees to port of original heading and then after the second command reduce it to only 10 degrees to port of original heading

Apply the wheel to alter the course 20 degrees to port and then after the second command change the heading a further 10 degrees

Apply 20 degrees of rudder towards port and then after the second command reduce the wheel to 10 degrees.

During bunker transfer operations, deck scuppers should be:

Plugged when required

Plugged to prevent spilled oil flowing overboard

Only fitted to the side of the vessel that bunkers are being loaded

Attended by crew to collect any spilled oil that approaches

Which of the options given is the main reason for using a ring spanner to tighten the brass nuts on the cover studs of a pump casing?

The nuts can be tightened more with this type of spanner.

It will allow the nuts to be tightened correctly.

It will minimise the risk of slipping off the nut or damaging the nuts.

It can be adjusted to the exact size of the nut.

When must side scuttles in passenger ships where the sills are below the margin line be kept closed and watertight?

When unwatched

Always during night-time

When not necessary to be kept open due to work being carried out aboard

During navigation between ports

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