Головна Онлайн-тести CES Chemical tanker Deck Support Test online CES 5.1 for Deck department, Support level, Chemical tanker vessel

Онлайн-тестування: Test online CES 5.1 for Deck department, Support level, Chemical tanker vessel

Виберіть режим роботи з тестом:

Навчання

Режим проходження

Онлайн-тест

Опис

Тест складається із випадкових питань з обраної теми.

Питання 1 з 90

You will anchor a VLCC at a depth of 80 meters in open water with swell. How much chain will you use?

3 shackles

11 shackles

6 shackles

8 shackles

Your ship is going full ahead as you start to slow down. Where is the position of the "pivot point" now? No wind, current.

The "pivot point" will move to the stern

Same position as when the ship is on full ahead

It will move aft as the ship slows down

It will move to the side of the center line

The ship is in a sharp turn and the log shows sideways motion to port both forward and aft. Where is the "pivot point" located?

Outside the ship itself

At the center of gravity

At 1/6 of the ship-s length aft of the bow, but in the center line

Aft of amidships

When handing over the con of a vessel to a pilot, should the Master insist in discussing the passage plan with the pilot while he is there to use his local knowledge and advice on the navigation of the ship?

The passage is well established and known by the pilot and a plan is therefore not necessary

The pilot would probably consider it unnecessary, be more interested in knowing the ship's characteristics and resist any passage planning discussions with the Master.

A pilot is responsible for the navigation whilst on board and will be very familiar with what is required, therefore discussing the passage plan is not necessary

A passage plan should be discussed between the Master and pilot, when under pilotage in the same way as discussed with the bridge team when deep sea

How much time can be saved by use of weather routing?

Impossible to say

Your vessel has been in involved in a collision with an other vessel. As Master responsible for the ship and persons on board, what is the first step to take?

Organise someone to assess the extent of damage and the residual stability of the vessel.

Determine is there is any evidence of pollution.

Determine any injuries or deaths of persons on board

Communicate with the other ship.

Which of the following is a chemical commonly added to cleaning substances used to clean galley areas?

Bleach.

Beach.

Blanch.

Breach.

What is the MARPOL definition of a "high-viscosity substance"?

A noxious liquid substance in category "Y" with a viscosity equal to or greater than 100 mPa.s at 37.8 degrees Celsius.

Any noxious liquid substance, the residues of which cannot be stripped from a cargo compartment and its associated piping and pumping system to equal to or less than 75 litres.

A noxious liquid substance of any category with a pour point of greater than 37.8 degrees Celsius.

A noxious liquid substance in category "X" or "Y" with a viscosity equal to or greater than 50 mPa.s at the unloading temperature.

You are the Officer on Watch on an oil tanker during a discharging operation. An alarm on the Inert Gas Plant indicates that no inert gas is being supplied to replace the discharging cargo. What will you do?

Continue discharging with the cargo pumps running at minimum speed.

Slow down and relieve the vacuum by opening the tanks lids.

Immediately stop the discharging.

Activate the inert fans and blow fresh air into the cargo tanks.

Signals are often used by aircraft engaged in search and rescue operations to direct ships towards a casualty. This aircraft flies across your stern, rocking his wings. What is the meaning of the signal?

The aircraft is telling me he does not understand my last message.

The assistance of your vessel is no longer required.

This is part of a sequence of manoeuvres by which the aircraft will indicate a direction for my vessel to proceed in.

The aircraft is telling me he is preparing to drop supplies or personnel in the water.

You have just been handed six sample bottles by the cargo surveyor, containing Nitric Acid drawn from a cargo just loaded on your ship. How will you move them to the sample locker, prior to storage?

I will carry as many as I can in my arms in one go, but ensure first that I put on a pair of chemical-proof gloves.

I will instruct the cargo surveyor that he must deliver the samples to the locker himself.

I will obtain a plastic carrier bag, put the bottles inside and take them to the locker as quickly as possible.

I will place them into a proper container with a handle, such as a sample carrier or a strong bucket. When I move them, I will ensure that I am focused on this task alone.

The continuity resistance of a 100m long X 25 sq. mm cable (rated at 100A) is to be checked. Which of the following results would you anticipate?

between 0.1 and 1.0 M ohm

between 0.1micro ohm and 1.0 micro ohm

between 0.1 and 1.0 ohm

greater than 1 M ohms

The IMO Gas Codes require that all liquefied gas carrier cargo tanks are fitted with pressure relief valves. Pilot operated relief valves are frequently used, particularly with refrigerated cargoes. What is the main advantage of using pilot operated relief valves rather than simple spring loaded types for refrigerated liquefied gas cargoes tanks?

The set pressure can be adjusted to above MARVS if problems occur with the reliquefaction plant.

When pilot operated valves are used only one valve per cargo tank is required irrespective of tank size.

They ensure accurate operation at the very low cargo carriage pressures.

They ensure accurate operation at the very low cargo carriage temperatures.

What must be observed when checking cargo lashing belts on a General Cargo Vessel?

The strength of lashing belts securing a particular item of cargo

The belt manufacturer's instructions

The number of lashing belts used to lash a particular item of cargo

That they are not torn

What is the purpose of the "Mud Box" on a tanker?

It is at the end of the pipeline in the tank and restricts any particles and solids entering the pipeline system.

It is the waste collection box in the store rooms.

It is the box near the windlass to deposit the mud from the anchor and anchor cables.

It is the box under the manifold to catch spills when connecting the discharge or loading hose.

What are the three volumes of the IAMSAR Manual?

I Organization and Management II Mission Co-ordination III Mobile Facilities.

I Planning and Preparation II Rescue Control III Reference

A Command and Control B Communications C Rescue Procedures

I Organization II Communications III Rescue Procedures

What should be done if cracks are found on portable deck supports?

Disallow vehicles from passing over the portable deck

Inform the master

Inform the stevedoring foreman

Stop cargo operations and inform the master

What are the main elements in a damage control plan?

A damage control plan is the same as an emergency plan

Arrangements for correction of list due to flooding within 15 minutes

Boundaries of the watertight compartments for decks and holds. Position of controls for opening and closing of watertight compartments. Arrangement for correction of list due to flooding.

Instructions and procedures for reporting damage to the Company

You have just completed your cargo watch on deck, during which you have been working around the manifold, connecting and disconnecting hoses, etc. It is meal-time. Should you take any precautions before entering the messroom and why?

I will remove my overalls and work boots and wash my hands, to avoid the risk of introducing chemical contaminants into the accommodation.

No, I am just going in for my lunch and then returning to work on deck, so it would be a waste of time to get changed.

I will wipe my boots and brush down my coveralls before entering the accommodation, to make sure I don't bring any dirt inside.

I will remove my overalls and workboots, because I will get in trouble from the captain if he catches me in work clothes in the messroom.

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

Air bags (dunnage bags) are widely used for securing palletised refrigerated cargoes. In the case of a fruit cargo, which of the given options should the user be aware of?

Over inflation can crush and damage the soft tissue of the fruit.

Over inflation can distort the pallet stack.

Over inflation can distort the air bag.

Over inflation can damage the ship's structure including the insulation.

What is the purpose of the girders in the tank?

They transfer all the cargo forces acting on the plating.

They transfer all sea forces acting on plating.

They support the stiffeners.

They support the stiffeners and also take up some of the sea force.

When should a vessel’s hatch pontoons not be lifted?

When the SWL of the gantry crane is not clearly marked

When the vessel is listed

When lighting conditions are poor

When the pontoons are to be lifted by a floating crane

What are the main components causing the magnetic compass to require a regular evaluation and compass correction?

The change in the position of the magnetic pole causing annual changes in the variation

Permanent and induced magnetism in the ships structure

The continual changes of courses steered by the ship

Deviation and Variation

The chemical abbreviation "H2S" is often associated with Crude Oil cargoes. What does the abbreviation stand for?

Hydrogen Sour.

Hydrogen Separation - 2nd distillation stage.

Hydrogen Sulphide.

Halogenated Sulphide.

How often shall the master review the safety management system?

Every month

Bi-annually

Every 5 years

Annually

What should be done after discharging coal with a high sulphur content from a bulk carrier?

Areas of corrosion in the cargo holds should be noted

An inspection of cargo hold areas prone to cracking should be carried out

An inspection of cargo hold areas prone to fatigue should be carried out

Cargo holds should be thoroughly washed and cleaned

The correct time to synchronise is usually taken to be when the synchroscope reaches the "5 to 12" position and is rotating slowly clockwise. This to allow for:

Generator phase difference error

Circuit breaker operating time

Synchroscope error

Synchroscope pointer time lag

Which of the following could be the possible cause of too high cargo condenser pressure?

Incondensible vapour in the cargo and shortage of refrigeration.

Incondensible vapour in the cargo.

Broken discharge valve plate.

Shortage of refrigeration.

A conventional reefer vessel operating a Controlled Atmosphere (CA) is approaching the port of discharge in Northern Europe. Which is the most suitable action to take from the options given?

Turn off the CA plant just prior to the start of discharge operations.

Continue to apply CA throughout the discharge to maintain the condition of the cargo.

Continue to apply CA until the hatches are opened to maintain the condition of the cargo.

Turn off the CA plant and thoroughly ventilate the cargo spaces under CA with fresh air just prior to arrival.

When handling slops on an oil tanker, what is meant by "settling"?

Allowing any waxy layers to settle below the residual oil

Allowing the oil and water to separate out

Allowing the mixture to rest once it has been pumped into the slop tank, so that any static charge disperses

Allowing any sediment to separate out and drop to the bottom of the tank

Who is responsible for the regular security inspections of the ship?

The Company Security Officer

The Classification Society.

The Ship Security Officer

The Port Facility Security Officer

A hazard is is a source of potential harm or damage or a situation with potential for harm or damage. Risk is determined based on evaluation of two elements. Which two elements?

The consequences of the hazardous event and the available personal protective equipment we have onboard

The likelihood that a hazard may occur and the consequences of the hazardous event

The likelihood that a hazard may occur and the available personal protective equipment we have onboard

The likelihood that a hazard may occur and the financial consequences for the Company

What is the main use for polyurethane foam onboard an LNG carrier?

As a fire retardant coating for the deck.

As a fire fighting medium.

As insulation for the cargo tanks.

As a sealant for deck openings.

Which of the following is a summary of the tank cleaning requirements for a category "X" substance on a chemical tanker constructed after 1st January 2007?

Strip to 75 litres / 12 miles from land / 25 metres of water / minimum 7 knots, proceeding en route.

Prewash for solidifying or high viscosity substances / strip to 75 litres / 12 miles from land / 25 metres of water / minimum 7 knots, proceeding en route.

Prewash / strip to 75 litres / 12 miles from land / 25 metres of water / minimum 7 knots, proceeding en route.

Prewash / strip to 100 litres / 12 miles from land / 25 metres of water / minimum 7 knots, proceeding en route.

Continuity testing of a delta connected three phase induction motor yields the following results; U-V =3 ohms, V-W =3 ohms, W-U =6 ohms.Which of the following is the likely condition?

Short circuit winding between W and U

Open circuit winding between W and U

Short circuit between V and Earth

Partial fault between W and U

By what name are the regulations which control the discharge of noxious substances and prevent pollution from ships known?

SOLAS

The International Marine Pollution Prevention Laws

ISGOTT

MARPOL

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.

A decision support system for emergency management shall be provided on the navigation bridge. What type of emergency situations shall as a minimum be identified in the emergency plans?

Fire, Damage to ship, Pollution, Unlawful acts threatening the safety of the ship and the security of its passenger and crew, Pesonnel accidents, Cargo-related accidents, Emergency assistance to other ships

Evacuation, Fire, Pollution and Man-Over-Board

Man-Over-Board, Evacuation and Fire

Fire, Evacuation, Pollution, Personnel accidents and Ship Security

Gas tankers are often fitted with fixed water spray system for fire protection purposes for deck areas, deck tanks, deck manifolds and pipelines. What is the minimum required flow rate of water per minute for horizontal and vertical surfaces to ensure adequate, uniform coverage of these areas?

100 litre/m2 per minute for horizontal surfaces and 50 litre/m2 per minute for vertical surfaces.

20 litre/m2 per minute for horizontal surfaces and 10 litre/m2 per minute for vertical surfaces.

10 litre/m2 per minute for horizontal surfaces and 4 litre/m2 per minute for vertical surfaces.

50 litre/m2 per minute for horizontal surfaces and 25 litre/m2 per minute for vertical surfaces.

In discussing segregation, the IMDG Code defines what it means by the term "separated from". Which of the following is that definition?

Either in a vertical or horizontal separation: if the intervening decks are not resistant to fire and liquid, then only in a longitudinal separation is acceptable. For "on deck" stowage, this means a distance of at least 12 metres. This distance also applies to one package stowed "on deck" and another in an upper compartment.

With an intervening compartment, being both a vertical and horizontal separation. Provided an intervening deck is resistant to liquid and fire, a vertical separation of 6 metres is acceptable. For "on deck" stowage, this segregation means a distance of at least 12 metres irrespective of compartment divisions.

Effectively segregated so that the incompatible goods cannot interact dangerously in the event of an accident, but may be transported in the same compartment or hold or on deck, provided a horizontal separation, projected vertically, of 3 metres is obtained.

In different compartments or holds when stowed "under deck". Provided an intervening deck is resistent to fire and liquid, a vertical separation may be accepted as equivalent. For "on deck" stowage, this segregation means a distance of at least 6 metres.

Your vessel is entering a tropical area and high humidity is expected. To avoid condensation in the main engine's air cooler, it is recommended to:

Decrease the air temperature so proper draining can be achieved from the air cooler

Increase scavenging air temperature to above dew point

Reduce speed.

Operate the engine with slightly open drain cocks, scavenging to get rid of the water

The emergency oil pollution equipment locker must be:

Just off the main engine room

A store room in the forward part of the ship

Prominently marked and easily accessible

A store room close to the pump room

A high pressure boiler is operating with all parameters normal except that the firing rate is high and the superheater temperature is high. Which of the options given is the likely cause of this condition?

The generating and screen tubes are fouled.

The de-superheater control is not operating correctly.

Insufficient combustion air is being supplied.

The superheater tubes are fouled.

According to the industry guidelines in the ISGOTT Guide and assuming terminal regulations do not require otherwise, what action should be taken to drain accumulated water from the deck during cargo handling operations in rainy conditions?

The scupper plugs are to be kept closed and sealed; any volume of water that is not contained should be allowed to flood over the fishplate

The accumulated water is to be drained periodically and the scupper plugs to be immediately closed once the water has been run off. Water containing oily residues is to be transferred to a slop tank or other suitable receptacle

During periods of heavy rain, it is considered prudent and safe to allow water to drain continuously; therefore scupper plugs should be removed in such conditions

The accumulated water is to be transferred to a spare tank

Your vessel is equipped with hydraulic submerged deep-well cargo pumps. You are approaching the end of discharge of a cargo of methanol in tank 3 port. Which of the following may be an indication that the tank is almost empty?

A progressive reduction in the noise coming from the cargo pump.

A distinctive surging noise from, and vibration observed on the cargo pump.

A sudden increase in the discharge rate.

A rise in temperature in the cargo discharge pipe adjacent to the pump stack.

The IMO Cargo Stowage and Securing Code (CSS) indicates in the 'Rule of Thumb', the total strength of the lashings on each side of a heavy lift; what is the stated value ?

The Maximum Securing load of the lashings must equal five times the weight of the cargo unit

The Maximum Securing load of the lashings must equal the weight of the cargo unit

The Maximum Securing load of the lashings must equal twice the weight of the cargo unit

The Maximum Securing load of the lashings must equal the 50% weight of the cargo unit

Why is it necessary to cool down LNG cargo tanks slowly prior to loading cargo?

To minimise the risk of creating a vacuum in the tank.

To minimise thermal stresses in the cargo tank.

To prevent ice forming in the cargo tank.

To minimise thermal stresses in the hull.

How often shall abandon ship- and fire drills take place on board passenger ships?

Weekly

Bi-weekly

At least two abandon ship drills and one fire drill every month

Monthly

How should pipes, rails and road sections be stowed?

Always in the athwartships direction

Fore and aft when practicable

Always fore and aft

Athwartships when practicable

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

What is Breaking Stress with regard to cargo lashings?

The maximum stress that can be applied to a cargo lashing

The maximum load that can safely be applied to a cargo lashing

The safe working load of a cargo lashing plus 10 percent

The load beyond which a cargo lashing will deform

A motor is protected by a thermal overcurrent relay. After tripping on overload it will not be possible to reset the overcurrent relay immediately because the:

Oil dash-pot has to be reset.

Bimetallic strips need time to cool down

Starter isolator automatically applies an interlock.

Line contactor spring has to be reset

Which line can be utilized to prevent line surge when starting the main pumps of a LNG carrier's cargo system?

The vent line.

The inert gas line.

The condensate spray line.

The aeration pipes.

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.

Certain oil cargoes, such as aviation turbine kerosenes or diesel oils, are specifically noted in ISGOTT as having an inherent hazard that requires ship's staff to monitor tanks containing them when on passage. What is that hazard?

They can absorb oxygen during the refining process and later release it into oxygen deficient atmospheres such as the ullage spaces in cargo tanks; the spaces should be monitored and the atmosphere adjusted if necessary.

They can release acidic elements when the ship is passing through tropical sea areas and the sea temperature rises above 30 degrees Celsius. A sharp odour may give an indication od increased corrosion which will require examination and possible attention after discharge.

Through contact with the tank structure, they can release highly toxic and corrosive matter which will remain in the sludge and can burn human tissue badly during a manual cleaning process. This can be detected by a drop in PTL factor and periodic tests should be made by ship's staff.

Unless containing an inhibitor, they can release toxic vapours if remaining in the ship for in excess of 60 days. If the cargo expands, these vapours may be released onto deck via the P/V valves and become a safety concern if thery enter the ship's ventilation systems.

What is IMO's definition of liquefied gas?

All chemicals with excess pressure above 2.8 bar at +73.8 C.

All chemicals with excess pressure above 8.2 bar at +37.8 C.

All chemicals with excess pressure above 2.8 bar at +37.8 C.

All chemicals with excess pressure above 2.8 bar at +100 C.

During start up of a steam plant it is necessary to warm through the steam range prior to use. How should this warming through be carried out?

Open the bypass/warming through valve and then fully open the main stop valve over a period of two minutes to ensure the warming through is completed as quickly as possible.

Using the bypass/warming through line for the main stop valve and with all line drains open to ensure all condensate is removed.

With the line drains closed to avoid losing too much high quality water.

Crack open the main stop valve and keep the drains open.

What is the most common way to control the tank pressure on a LNG tanker?

To let the gas escape through the safety valves.

To transfer the gas to another tank which is at a lower pressure.

To discharge the gas into the atmosphere through the vents.

To use the boil-off gas as fuel for the vessel.

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.

Does MARPOL apply to liquefied gas liquefied gas carriers?

Yes.

No.

Only annex IV.

Only annex V.

On a flue gas plant, the flue gas enters a washing tower where the gas is washed to remove soot, ashes and to separate undesired gases. What is the name of this «washing tower»?

Inert gas washer.

The washing tower.

Scrubber.

Cleaning tower.

An unconscious casualty who is breathing, should be placed

In the face up position

In the recovery position

Sitting up position

Lying face down position

What should be done when flammable vapours are detected in a cargo hold?

Stop the hold ventilation and close all ventilator covers

Stop the hold ventilation

Run the hold ventilation in ‘supply’ mode

Run the hold ventilation in ‘exhaust’ mode

Why do we use nickel-alloyed steel, stainless steel or aluminium in cargo tank construction on gas carriers designed for LNG and LEG?

Because these metals have a very low thermal expantion coefficient and do not burst of extreme low temperatures

Because these metals cost less than other metal

Because these metals have a high thermal expansion coefficient and do not burst of extream low temperatures

Because the weight on this metals are not so high than other metals

According to "Summary of minimum requirements" in the IGC Code, what is the requirement for vapour detection for methane (LNG) cargoes?

Toxic vapour detection.

Flammable and toxic detection.

Flammable vapour detection.

Oxygen analyser.

Which inert gas systems use only gases from the ship's main or auxiliary boilers?

The inert gas generator

Nitrogen generator

Combination - inert systems

The flue gas plant

After the discharge of Lube Oils, Lube Oil Additives, Phthalates and Olefins and before the loading of "high-spec" cargoes on a chemical tanker, what particular test might be expected to produce unsatisfactory results during initial wall-wash analysis?

Odor.

Non-volatile matter.

Hydrocarbons.

Color.

On a RoRo vessel, which of these stowage situations produces high friction that does not allow movement of the cargo?

A single tier of dunnage placed between vehicles and steel decks

Steel plates placed between vehicles and steel decks

Vehicles in direct contact with steel decks

Two tiers of dunnage placed between vehicles and steel decks

Which of these statements is correct?

Steel slabs may rest directly against the ship’s frames

Steel slabs do not require dunnage

Steel slabs may be loaded within the square of the hatch only

Steel slabs must never be permitted to rest directly against any part of the ship’s structure

How should the Bo's'un prepare for anchoring?

The Bo's'un should prepare for anchoring by hoisting the anchor ball

The Bo's'un should prepare for anchoring by walking back the anchor to five shackles in the water

The Bo's'un should prepare for anchoring by applying the windlass brake, then disengaging it

The Bo's'un should prepare for anchoring by lubricating the spurling pipe

During UMS rounds, a duty engineer notices that the fuel oil overflow observation glass is full of oil. Should he:

Stop all F.O. transfers immediately, and inform the CE.

None of the listed alternatives.

Make a sounding of the F.O. overflow tank and decide if there is enough capacity to leave it until the following morning.

Call a motorman and have him sound the FO overflow tank periodically during the night.

Which group of dangerous goods is generally considered as being the most hazardous for marine transportation on a General Cargo Vessel?

Toxic Gases

Infectious substances

Inflammable liquids

Organic peroxides

What would be a typical value for the set point for shut down of a large 2-stroke diesel engine due to thrust bearing high temperature?

125° C

85° C

65° C

105° C

What publication must be carried on a vessel carrying dry bulk cargoes?

Charters' Solid Bulk Cargoes Code?

IMO Solid Bulk cargo Code or IMO Solid Bulk?

International Tankers and Terminal Code?

Classification Society Grain Rules?

On the air compressor's crankcase there is a small valve that lets off overpressure. What do we have to do if this valve is letting off pressure and oil moisture ?

Check the clearance in the bearings.

Increase the flow of cooling water.

Overhaul the compressor unit.

Block the valve because it pollutes the engine room (block off the valve).

How can the officer in charge change the value of the Transverse Metacentric Height?

By loading or discharging cargo and changing the position of both G only.

By vertically shifting cargo and changing the position of both G and M.

By loading or discharging cargo and probably changing the positions of G and M.

Only by loading cargo and changing the position of both G and M.

While assisting the watchkeeper with routine cleaning of the fuel oil separator the watch rating is requested to clean the plate stack. Which of the options given is the preferred method for such a task?

With the plate stack in position fill the purifier bowl with clean diesel oil and quickly switch it on and off to wash the plates.

Soak the dirty plates in a solvent for an hour and then stand them on the engine room deck to drain off.

Soak the plates in a suitable solvent until all of the dirt has loosened off and wipe clean with rags.

Scrape the plates as clean as possible with a packing knife and then wash them with a high pressure water hose.

Very roughly, the gas mixture from Crude Oil can be represented by the hydrocarbon gas Propane. What is the approximate upper flammable limit(UFL) of crude oil vapours by volume in air?

8 to 9%

12 to 15%

10 to 11%

5 to 6%

What is the procedure if a tank lorry containing dangerous goods is not clearly marked?

As long as the driver looks ok, load the cargo

Ask the driver to write a declaration of contents and load the vehicle

Load it, usually tank lorries are not clearly marked

Refuse to load the vehicle

At which of the pressures shown should the low oil pressure trip operate on a freon compressor?

+ 1.0 bar

- 0.5 bar

+ 10 bar

+ 5.0 bar

Which of the following is considered to be the most efficient method of testing the weather tightness of hatch covers during a pre-loading survey of a General Cargo Vessel?

Hose test

Visual inspection

Ultra sonic test

Chalk test

After discharge of a cargo of bananas there are a lot of cartons of condemned fruit on the deck. The vessel is not in a special area and is more than 100 miles from land. Select from the given options the best way to dispose of the condemned fruit.

Remove and retain all of the packaging including any inner plastic bags and dispose of the condemned fruit overboard.

Keep the cargo onboard until the vessel enters a port with suitable disposal facilities.

Dispose of the complete cartons of condemned fruit overboard and make an entry into the Garbage Disposal Log.

Keep the fruit for crew consumption and dispose of the packaging.

What would you do immediately if you saw oil spilling from a bunker hose during cargo operations?

Stop the bunker operation

Look up instructions in the Shipboard Oil Pollution Emergency Plan (SOPEP)

Inform the duty officer

Inform the master

What is one of the main features of the cylinder lubricating oil used in large 2 stroke marine diesel engines which normally operate on heavy fuel oil?

It is a pure mineral oil without any special additives.

It is strongly alkaline.

It is strongly acidic.

It is neutral with a pH value of 7.

A cargo of frozen chicken is being presented for loading into a conventional reefer vessel. Which of the options given is the most appropriate packaging method that should be used for such a cargo?

It should be wrapped in plastic and stowed loose.

It should be packed in cardboard cartons.

It should be packed in wooden cases.

It should be packed in plastic sacks.

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

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 be applied to the oil in a single jet only.

Water should not be used on any type of oil fire.

How many rocket parachute flares are carried in each liferaft?

Nil

What equipment is provided in a liferaft to help you keep warm in cold weather?

The floor of the raft has a second layer which can be inflated to give additional insulation from the cold water

At least 10% of the rafts complement with a minimum of 2 thermal protective aids are provided

The floor of the raft has a second layer which can be inflated to help insulation, in addition to the thermal protective aids (10% of complement, minimum 2)

Thermal protective aids for each person

Даний онлайн-тест складається з 90 випадкових питань із тестів CES 5.1 з обраної вами тематики.