Home Online tests CES Chemical tanker Deck Support Test online CES 5.1 for Deck department, Support level, Chemical tanker vessel

Online testing: Test online CES 5.1 for Deck department, Support level, Chemical tanker vessel

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Question 1 from 90

If a fire starts in the fuel tanks of a vessel, the fire will be …

a class A fire

a class E fire

a class B fire

a class D fire

Answer

Messages sent via INMARSAT C are charged

on the number of kilobits of information transmitted per block of 1024 bits

on the basis of a three minute minimum charge with one minute incremental steps

on the basis of a six second minimum charge with six second incremental steps

on the number of kilobits of information transmitted per block of 256 bits

What is the correct chemical name for Caustic Soda in liquid form?

Sodium Hydroxide solution

Potassium Hydroxide solution

Sodium Chlorate solution.

Sodium Hypochlorite solution.

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

Which of the four figures illustrated shows the correct position line for the following situation: Latitude 50°00'N, Longitude 30°00'W, Time 1200 GMT. Course steered: 090° True, Speed: 12 knots, bearing of the sun: 200°, Intercept correction: 00°02' Towards (observed altitude - computed altitude).

Figure 2 is correct.

Figure 3 is correct.

Figure 4 is correct.

Figure 1 is correct.

After the start of a man overboard manoeuvre, whom shall be informed?

Chief Officer

Electrician

Engine Room

Galley

You are Sen.Off.Deck on vessel "A" and your cargo is iron ore. The vessel is in narrow waters and you have been in a collision with vessel "B" causing your vessel to take in water. How will you act to save the vessel and the cargo?

Call main office for help

Navigate the vessel on ground as soon as possible

Call tug boats for help

Try to discharge the incoming water

If you are required to splice an eye on a mooring wire (using the recommended 5 full tucks and 2 half tucks) the effective breaking strength of the wire will now be affected by the splice, and you would expect:

A reduction in strength of 30 % to 40 %.

A reduction in strength of 1% to 5%.

A reduction in strength of 10 % to 15 %.

No reduction in strength.

In shallow water a ship will experience "Squat". What are the principle reasons creating the effects of squat?

There are changes in the bow and stern pressure fields associated with the ships motion.

There is an increase in the water velocity and a decrease of water pressure around the ship's hull

There is a decrease in the water velocity and an increased of water pressure around the ship's hull

There is an increased effect of gravity due to closeness of the sea-bed

When Sen. Deck Off. of both vessels involved have decided which will be the last lines to be let go whilst unmooring, these lines should be made fast as follows on the ship accepting the lines.

By keeping the rope on the warping drum of a deck winch, fig. 3.

By turning up the rope on the bitts, fig. 1.

By putting the eye on the bitts, fig. 2.

By shackling the eye to a strongpoint, fig. 4.

On board a ship, how many lifebuoys can you expect to be fitted with a self-igniting light ?

Half of the total number of lifebuoys provided on board

The two lifebuoys of the quick-release system and at least one other in the vicinity of the stern

The total number of lifebuoys provided on board

Only the two life buoys of the quick-release system

The grabline of a lifebuoy has a length of:

5 times the outer diameter of the lifebuoy

4 times the outer diameter of the lifebuoy

2 times the outer diameter of the lifebuoy

3 times the outer diameter of the lifebuoy

The ship is involved in a collision, what is the immediate action by the Officer of the Watch after the incident has taken place?

Call the Master and check the position for any immediate dangers.

Stop engines and check over the side for any signs of pollution.

Sound the General Alarm and stop engines.

Contact the other ship and send the bridge lookout down to start taking soundings

Feed check valves for main and auxilliary purposes are normally of the double shut off type, as shown in the diagram. What is the main function of the non-return valve?

To allow overhaul of the screw down valve when the non-return valve is shut and the boiler is steaming.

To allow fine tuning of feed water flow to the boiler.

To prevent the steam and water in the boiler from discharging out by the feed line, if a feed line fracture or a joint in the line blows.

To increase the workload for staff when overhauling the boiler.

You are in open water and clear conditions. You are approaching the pilot station when you hear this signal from a vessel ahead of you. What does it signify?

That the vessel is starting his engine and resuming his passage.

That the vessel is operating astern propulsion.

That the vessel is picking up his pilot.

That the vessel is altering his course to starboard.

What is the weather associated with being in the centre of an Anticyclone (a region of High Pressure)?

Persistent rain and very humid weather

Strong winds and heavy rain

Strong winds but with very little rain

Light winds and fair weather, sometimes fog.

What would be the main effect on a refrigeration system of insufficient cooling water flow through the condenser?

Reduced delivery pressure

reduced suction pressure

Increased delivery pressure

Increased icing up of the compressor suction line.

A heat exchanger of the tube and shell type is used for cooling lubricating oil with seawater as the secondary fluid. Which of the options would indicate that the tube stack was becoming fouled (scaled or coked) rather than blocked?

An increased temperature difference between the seawater inlet and outlet and also between the lubricating oil inlet and outlet.

A reduced temperature difference between the seawater inlet and outlet and also between the lubricating oil inlet and outlet.

A reduced temperature difference between the seawater inlet and outlet and an increase in the temperature difference between the lubricating oil inlet and outlet.

An increase in the temperature difference between the seawater inlet and outlet and a reduced temperature difference between the lubricating oil inlet and outlet.

What measures regarding ship stability should be taken in order to make passenger ships able to withstand critical damage?

Damaged stability to be increased by weight redistribution.

Damaged stability to be increased by use of water ballast

Avoid overloading the ship

Maintain sufficient intact stability

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.

For what purpose are we using a Mollier diagram?

We use the Mollier diagram to calculate the differential pressure over the cooling plant.

We use the Mollier diagram to calculate the heat transferred to the cooling plant.

We use the Mollier diagram to calculate the vapour flow in the cooling plant.

We use the Mollier diagram to calculate the cooling capacity of the cooling plant.

The DoS addresses the responsibility for the security of the water around the ship and the verification of increased threat levels.

TRUE

FALSE

After washing cargo holds why are cargo residues often found on the tank top when hatches are opened at the load port?

Because the washing of cargo holds was not thorough

Because of poor drainage into the bilges

Because of cargo residues falling down due to ship’s vibrations during the ballast passage

Due to failure of the bilge eductors

Which of these is correct?

1tonne = 1000 kg

1tonne = 10 kg

1tonne = 100 kg

1tonne = 10,000 kg

All necessary information for the next port of call should be:

Procured during the voyage prior arrival at the next port

Procured before departure from a port

Procured on arrival at the next port

Requested on email

At the design phase of a container ship, how is the loss of strength resulting from the large deck openings, compensated?

Large deck beams longitudinally and athwartships at the sides and ends of hatches

Additional transverse bulkheads

Large doubling plates at the hatch corners

Additional longitudinal bulkheads

What is shown in the attached image?

The attached image shows derricks

The attached image shows deck cranes

The attached image shows grabs attached to deck cranes, during cargo opertions

The attached image shows grabs attached to derricks, for cargo opertions

In the event of a severe scavenge fire, which of the following is most likely to be seriously damaged?

Piston rod and stuffing box.

Exhaust valve.

Crosshead bearing.

Piston crown.

Anyone of the crew who is assigned to watch duties in port has a number of important tasks to carry out. Which one of the listed tasks should be included in the watchman's duties?

Check the number of persons joining and leaving the vessel.

Check the safe and secure handling of cargo.

Check the moorings for correct tightness and ensure the gangway remains safe and secure.

Check there is always a shore watchman on the jetty.

On a Container vessel, what are the limitations of Cargo Securing Manuals?

They are not always approved by a classification society

They are drafted whilst the ship is still under construction and need to be checked against the ship's 'as completed' condition in order to be fully reliable.

Some Cargo Securing Manuals cover a full range of sister ships

Cargo securing arrangements in the manuals may be unsuitable for heavy weather conditions

If normal cool down rate has been complied with, what should the temperature at the primary insulation and the secondary barrier be?

-120C and -100C.

-100C and -80C.

-130C and -120C.

-140C and -130C.

Some gas carriers are designed to carry both LPG and LEG. What is the design temperature on the cargo containment system on a LPG/LEG carrier?

Design temperature of the cargo containment system for an LPG/LEG carrier is minus 103 degrees C

Design temperature of the cargo containment system for an LPG/LEG carrier is minus 48 degrees C

Design temperature of the cargo containment system for an LPG/LEG carrier is minus 89 degrees C

Design temperature of the cargo containment system for an LPG/LEG carrier is minus 162 degrees C.

What is the minimum number of relief valves to be fitted to any cargo tank of greater than 20 cubic metres capacity?

Minimum two pressure relief valves in addition to MARVS.

At least two pressure relief valves.

Minimum one pressure relief valves.

The required number of pressure relief valves is dependent on the pressure.

When is a vessel considered unseaworthy?

When cargo has been damaged due to heavy weather

When cargo has been damaged due to ingress of water

When due diligence has not been exercised to make it seaworthy

When it is not cargo worthy

What is a low location lighting system?

A light system powered by battery or fluorescent signs mounted at deck level indicating the way to the nearest exit

A system displaying the escape route from all cabins by light points in the ceiling, powered by battery

An illumination system for all corridors in cabin areas

An emergency illumination system that illuminates all deck areas to a minimum

What are the characteristics of Seed Cake containing vegetable oil UN 1386 when carried in bulk?

May self-heat slowly and if wet ignite spontaneously

No specific hazards

This cargo may release carbon monoxide

This cargo is non-combustible and low fire risk

Emergency instructions in appropriate languages shall be posted in passenger cabins. What information shall as a minimum be included in the emergency instructions?

Name of cabin attendant

Escape routes and alarm signals

The method of donning life-jackets, escape routes and alarm signals

Where to find thermal protective aids

On a RoRo vessel, what additional securing arrangements should be used when loading a vehicle on an incline or fixed Ramp

Double the normal lashings should be used

None

The Vehicle should also be chocked under its wheels

The purpose of the “flame scanner” on the boiler is

check the colour of the flame

all the alternatives

controlling the combustion air supply to the boiler

shut off the oil flow if the flames goes out

You are in charge of a night bunkering operation. The delivery rate from the supplier is high and you are filling six tanks simultaneously. You loose track of the progress of the operation and feel that you are loosing control of the situation. What action should you take?

Stop bunkering, and establish facts, before bunkering is resumed

Request a reduction in the delivery rate to try and gain some time.

Prepare yourself and the crew for an overflow.

Open more tanks to slow down the filling rate of individual tanks.

If it is found that a leakage from the gland of a centrifugal pump is excessive. The correct procedure is:

Fit oversize packing to the stuffing box.

Tighten the gland as much as possible until the leakage stops.

Ensure the bilge well to which it is draining is regularly pumped out.

Re-pack the stuffing box loosely with the correct size packing at the earliest opportunity.

Many modern medium and high speed diesel engines operate at very high power ratings resulting in relatively high bearing loads. In order to accommodate these loads the bearings are required to have a high load carrying capacity. What kind of bearings are normally used for main and bottom end purposes to achieve this?

Thin steel shells with a thin white metal lining.

Thick white metal types with the white metal cast into the keeps to give extra fatigue strength.

Thin steel shells with a copper lead lining and a running in overlay.

Thin steel shells lined with aluminium tin alloys.

Which of the following conditions could be the cause of an air conditioning system evaporator icing up?

High sea water temperature..

Too low suction pressure.

Low sea water temperature.

Too high discharge pressure.

How would you report a person lost overboard?

"Man overboard"

"A person has fallen overboard"

"We have lost a person overboard"

"We have lost a person overboard in position….."

How can water hammer be avoided when operating the valves and pumps in a cooling water system?

Operate valves quickly

Start the pump with open valves

Operate valves slowly

Start pump with closed valves

For what can a vessel be held responsible by a port authority?

The gangway resting on a damaged jetty

Damage to cargo during loading

Painting overside

Soot emissions

On a General Cargo Vessel, what do Tonnes per Centimeter Immersion (TPC), Moment to Change Trim by one Centimeter (MCTC) and Longitudinal Centre of Floatation (LCF) have in common?

They vary with small angles of heel

These vary with the gross tonnage of the vessel

They vary with changes in displacement

They remain unaffected by changes in displacement

What are you normally calling the compressor that collects the boil-off from the header connected to each cargo tank?

The fuel-feeding compressor.

The low-duty compressor.

The high-duty compressor.

The medium-duty compressor.

How is the condenser cooling water flow regulating valve automatically controlled in a vapour compression refrigeration system?

By the compressor discharge pressure.

By the quantity of refrigerant in the system.

By the temperature of the refrigerant after the evaporator.

By the temperature in the refrigerated room.

Which of the hydrocarbon gases is the main one in LNG?

Butane.

Methane.

Ethane.

Propane.

You are on watch during a ship to ship petroleum cargo transfer operation. An electrical storm is observed in the close vicinity, approaching the ships' position. What is the recommended procedure?

Remove the deck scuppers in preparation for heavy rain.

Suspend all cargo transfer operations and close all tank openings and vents valves.

Maintain a close check on inert gas content in the tanks being worked on both vessels, but continue the cargo transfer.

Reduce cargo transfer rate to a minimum to reduce the rate of vapour expulsion from the venting system of the receiving vessel.

The engine room rating has been assisting with ballast operations during a period of engine room watch duty. Ballast operations have stopped for a couple of hours while stores are being taken. What action should the rating take during this break in operations?

Just keep the pumps running and the valves for the ballast tanks open to save time when operations are restarted. The tanks will just overflow through the air vents.

Stop all of the ballast pumps and close all of the ballast valves as soon as operations are stopped. Ballast lines should always be closed except when they are being used.

Just stop the pumps and close the pump suction and discharge valves. Leave the valves for the ballast tanks open to save time later.

Shut the valves for the ballast tanks but keep the pumps running and discharging overboard to save time later.

If a passenger asks you a question you cannot answer, what will you do?

Tell the passenger to ask one of your colleagues who are more experienced than you are

Tell the passenger that you will confer your colleagues and revert with an answer, or you bring the passenger along to a colleague who can give an answer to the question. Never say I don't know!

Make up a story, the passenger doesn't really care

Tell the passenger to approach the information desk/ reception on board

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.

When preparing the hold of a bulk carrier for cargo when that hold has previously been ballasted, which of the following must be checked

The ballast lines must be blanked off and the bilge lines opened and tested

Previous cargo swept out

The heating coils fitted

Paint coating re- painted

On a RoRo vessel, what should be done first when cargo has shifted at sea on a RoRo vessel and re-lashing is not possible?

Take action to improve stability

Go Faster to outrun the problem

Alter course and/or speed to reduce the accelerations and prevent further damage

Which of the following categories of galley waste is it prohibited to dump into the sea under any circumstances and irrespective of where the ship is located?

Inert ash from incinerated food waste.

Ground or comminutated paper, rags and glass.

Plastics, including bags, bottles and packaging.

Ground or comminutated food waste.

What is the normal procedure for cooldown cargo tanks prior to loading LNG?

Pumping cold LNG through the spray header.

Pumping cold LNG to the bottom of the tank.

Pumping cold LNG through the heater.

Pumping cold LNG through liquid header.

What do you understand by: Bitter end?

Bitter end means: a foul taste at the end of a meal

Bitter end means: to the very last moment

Bitter end means: the toggled end of a lifeboat painter

Bitter end means: the end link of an anchor cable that is secured within the chain locker

"Overshoot" is an expression related to a ship's steering ability. What is the correct understanding of this expression?

It is the way a ship turns when putting the helm in a hard over position

It is how many degrees of the compass a ship continues to turn after applying counter-rudder

It is the amount a ship moves forward after the engines are stopped

It is the way a ship continues to turn when the helm is put amidships

What type of search pattern is recommended in the IAMSAR Manual as most effective when the location of the search object is known within relatively close limits?

Parallel Sweep Search.

Sector Search.

Expanding Square Search.

Track Line Search.

You are going to do deballasting of a double bottom tank. The pump is of centrifugal type and mounted above tank level. You are having problems getting the pump to take suction. What can you do to solve the problem?

Repeat start and stop of the pump until it gets suction.

Feed the pump from the sea water inlet pipe.

Get somebody to do the job for you.

Disconect the manometer pipe to get rid of an air pocket .

What is related to a high GM?

Decreasing righting moments

Increasing righting moments

Increasing angles of roll

Decreasing transverse accelerations

You are receiving stores, including some cartons of frozen seafood. You spot a watermark around a particular carton. What might this be a sign of?

That the produce has been allowed to partially thaw at some stage during trans-shipment

That the carton has been previously used to transport another product

That the fish inside the carton are oily

That the carton has been standing in the open air and mositure has been absorbed into the packaging

With regard to folding hatch covers in the open position, what will happen when the hydraulic cylinder piston is extended?

The panels should peak

The panels should fold

The hatch cover panels should rack backwards

The hatch cover panels should rack backwards releasing the cleat wedges

What is the punishment for a master or any other person in authority on board a ship if he or she treats a person carried on the ship in an improper manner or fails to prevent his being so treated by other persons onboard?

Shall bi liable to imprisonment for a term not exceeding 9 months.

Shall bi liable to fines.

Shall bi liable to fines or imprisonment for a term not exceeding 6 months.

Shall bi liable to fines or imprisonment for a term not exceeding 12 months.

Where shall you be able to activate the ship security alert system on board ro-ro passenger ships?

Navigation bridge

From the navigation bridge and in at least one other location

Captain's office

Captain's- and Chief Officer's office

The auxiliary boiler for the supply of low pressure heating steam has an automatic combustion control which operates on a two step control principle. The boiler fails to attempt to start up during a period of normal operation even though the steam pressure has fallen below the set point. What is the most likely cause of this fault?

The photocell for detecting flame on is dirty.

The pressure switch for the combustion air supply is faulty and remains open.

The pressure switch for low steam pressure is faulty and fails to close.

The electrical supply for the control system is isolated.

How can you best demonstrate in an audit that you follow company cargo handling procedures?

By providing a summary of out-turn figures for the auditor.

By requesting that an audit takes place during cargo operations.

By being able to provide comprehensive and verifiable documentary records of cargo operations.

By providing a summary of incident and lost time figures for the auditor that reflects a successful and trouble-free system on board.

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.

What is the requirement to membranes on Independent Tank Type "A"?

No barrier required.

Complete secondary barrier.

Only primary barrier required.

Partial secondary barrier.

As per SOLAS a fast rescue boats shall be capable of:

Manoeuvring for at least 8 hrs at a speed of 10 knots

Manoeuvring for at least 4 hrs at a speed of 20 knots in calm water

Manoeuvring for at least 4 hrs at a speed of 8 knots

Manoeuvring for at least 4 hrs at a speed of 4 knots

After starting a freon compressor, how long should you wait before opening the oil separator return valve?

Open the valve immediately.

One minute.

I do not know.

After the separator shell has warmed up.

What is the disadvantage of using High Tensile Steel (HTS) in the construction of bulk carriers?

HTS is prone to fatigue cracking

When compared with mild steel HTS increases the lightship displacement

HTS does not form a proper bond with paint coatings

HTS is prone to pitting

What is the normal name of the special wire/rope on board the ship used to make a tug fast?

Mooring wire

Tugs rope

Towing spring

Tugs wire

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.

On the figure 4 possible definitions of the term "AIR DRAUGHT" are given. Which one is the correct one?

Air draught is given by A on the figure

Air draught is given by D on the figure

Air draught is given by C on the figure

Air draught is given by B on the figure

What advantages does the radar have over the eye?

Subject to night adaptation

Simplifies the overview

Poor at assessing distance

Degradation through glare

What kind of cargo pumps is most common on LNG carriers?

Deepwell pumps.

Single stage deepwell pumps.

Submerges motor pumps.

Multistage deepwell pumps.

Sometimes an early warning of failure in High Voltage switchboards may be an unpleasant smell. If the switchboard uses gas circuit breakers, which of the following may indicate a potential problem?

Chlorine.

Gas oil.

Rotten fish.

Rotten eggs.

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.

Which plan should be consulted if it is found that two separate tanks are filling when it was intended for only one to be filled?

Lines Plan

Capacity Plan

Pumping plan

General Arrangement Plan

What special requirements applies to fire alarm signalling systems in passenger ships

Remote control of fire doors and reactivation of ventilation

Same requirements for Fire alarm systems applies to all ships

Centralized in a continuously manned control station with remote control of fire doors, Indication of open or closed fire doors

Fail safe, Centralized in a continuously manned control station, Remote control of fire doors, Indication of open or closed fire doors, Reactivation of ventilation, Detector status, Back up powered

The "dew point" of a liquid chemical is often quoted in the documentation relating to its loading and carriage. Which of the following is a definition of "dew point"?

The temperature at which a gas is saturated with respect to a condensable component, as in operational terms is seen at the point when air is saturated with moisture.

The temperature at which dry-ice melts in Acetone.

The temperature at which a condensable component is saturated with respect to a gas, as in operational terms is seen at the point when moisture no longer detectable in air.

The temperature at which a saturated gas exhibits condensation.

With reference to General Cargo vessels, which of the following statements is correct?

Hot rolled steel coils are always shipped in stainless steel envelopes

Hot rolled steel coils must not be loaded in a rusty condition

Hot rolled steel coils can be loaded in heavy rain

Hot rolled steel coils must not be exposed to salt water contamination

How often should boiler water tests be carried out on a steam boiler?

Every hour.

Every day.

Every fortnight.

Every week.

The oils used for medium and high speed diesel engine lubrication usually have alkaline additives which give the oil a Total Base Number of about 30 to 40 mg KOH/g. Why is it necessary to have such a TBN for these oils?

To counteract the effects of fuel leaking into the crankcase.

To allow operation of the engine on a variety of fuel types.

To increase the load carrying capacity of the oil.

To neutralise the acids formed during combustion.

With the set point at the actual desired value, a temperature control system is giving an unacceptably large offset (difference between set point and measured value) on high load resulting in a low system temperature. Which of the actions given in the options should be taken to reduce this effect and therefore achieve closer control of the temperature?

Increase the set point to a value above the actual desired value

Crack open the manual bypass valve for the control valve.

Increase the width of the proportional band for the controller.

Reduce the width of the proportional band for the controller.

Fuel oil from a leaking fuel pipe has been collected in a drip tray under the boiler furnace.The oil is suddenly ignited by a backflash from the boiler burner.The boiler room is manned and the person present has the choice of various extinguishers. The fire is purely a surface fire. What would be the preferable extinguisher?

CO2

Any of the mentioned alternatives

Water

Powder

What has to be done before the central gas extinguishing system is used on a fire in engine rooms, cargo holds or other confined spaces?

Make sure that the compartment has been evacuated

Stop all engines

Close down boilers

All openings to the compartment must be closed

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