Главная Онлайн-тесты CES Oil tanker Deck Support Онлайн-тест CES 5.1 для Deck department, Support level, Oil tanker vessel

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Тест состоит из случайных вопросов по выбранной теме.

Вопрос 1 из 90

By running a centrifugal pump what will happen if the NPSHA (Net positive suction head available) is less than NPSHR (Net positive suction head required) ?

The pump will not draw liquid.

The pump will overheat.

The pump will suffer damage

The pump needs to run faster.

The pressure in a flexible hose must be set up

Before it is being laid down

After it has been laid down

All answers are correct

While it is being laid down

On board they want to establish telex-communication via the Inmarsat-set with the ship Appologracht. In the guides the following ID’s are found for the Appologracht: 244320000, 424432010, 424432020, 1300210, 36715. What ID should chosen:

244320000

1300210

Don't know

36715

Where should the placard you are shown be located, according to U.S. Coast Guard regulations ? (Title 33-Navigation and Navigable waters, § 155.440 )

In a conspicuous place at the bilge and ballast pump control station

In the wheelhouse

In a conspicuous place in each machinery space

Both in a conspicuous place in each machinery space and in a conspicuous place at the bilge and ballast pump control station

Why are you only allowed to load maximum 98% of the tank capacity?

It is company policy.

Danger to vessel stability and strength.

Due to temperature expansion.

Danger of overloading.

You are transiting a narrow channel. What can happen in this situation?

The bow will be pushed away from the bank

The bow will be sucked towards the bank

The stern will be pushed away from the bank

None of the mentioned will happen

While navigating using a paper chart marked WGS84 the OOW plots the ships position by four different methods and they all give slightly different positions. Which of the following would be considered the most accurate.

Radar ranges from two radar destinctive headlands

GPS set on WGS84 datum

Bearing and distance from a navigation buoy close to the vessel

Gyro compass bearings from two lighthouses

The lifebuoy making part of quick-release arrangement must have a weight of at least:

2.5 kg

4 kg

2 kg

8 kg

What are the tricing pendants made for?

They prevent people from falling down if the lifeboat falls down

They automatically prevent any gap between the ship side and the lifeboat at the first stage of its launching

They prevent the lifeboat from falling down if one or both davit breaks

They prevent the lifeboat from falling down if the falls break

When you are taking an "ullage" on a cargo tank on an oil tanker, what are you actually doing?

Measuring the distance from the surface of the cargo to the ullage reference point

Measuring the distance from the bottom of the tank to the ullage reference point

Measuring the distance from the bottom of the tank to the surface of cargo

Measuring the distance from the surface of the cargo to the underside of the maindeck

What significant change to the requirements for the carriage of Vegetable Oils in tankers was introduced by the amendments to MARPOL and the IBC Code on 1st January 2007?

They must now be carried in double-hull tankers.

They must now be carried in type 2 tanks.

An air compressor is being refitted in the engine room. The compressor and motor are coupled using a flexible coupling and are mounted on a common 'skid' which fixed to the deck with resilient mountings. Which of the statements, from the options given, relating to the alignment of the motor and compressor is true?

As long as the two coupling halves are at the same height the flexible coupling will accommodate any horizontal misalignment or difference in the gap between the coupling faces.

Shims should be fitted between the motor and compressor feet and the skid to ensure correct vertical, horizontal and parallel alignment of the coupling halves before it is bolted up.

The compressor and motor can just be placed directly on the common skid as they will probably be closely aligned anyway.

Machines using flexible couplings and resilient mountings do not need to be aligned. That is why they have flexible and resilient elements fitted.

What is the minimum number of independently driven fire pumps that must be provided on passenger ships of 4000 tons gross tonnage and upwards?

What is a digital signal?

A signal indicating Revolutions per minute (RPM)

A signal used by multimeters to measure resistance.

The reading of a multimeter when indicating voltage, current or resistance.

A signal with discrete levels such as 0 = "low" and 1 = "High"

Temperature sensors may be marked PT100. What does this mean?

100 ohm at 0° C

20 ohm at 100° C

100 ohm at 20° C

0ohm at 100° C

Choose the option which is most likely to result in erosion of the tubes in a heat exchanger.

Cooling water velocity too high.

Cooling water temperature too high.

Cooling water pressure too high.

Rate of heat transfer too high.

What is the most important reason for separating a panicking passenger from the group?

It is easier to calm the person down in private.

You want to protect the panicking person as much as possible.

You don't want other passengers to hear if you have to become very strict with the panicking person.

Panic can spread and affect other passengers.

You have recently discharged a cargo of Isoprene and the tank has now been cleaned. There is still a strong smell of Isoprene vapour from deck. Can you save some time and use a mask fitted with an "Inorganic Gases and Vapours" filter to enter the tank for mopping and inspection?

No. Filter masks are not permitted for enclosed space entry where the oxygen content of the atmosphere may be insufficient to sustain life.

No. Entry into a tank which previously contained Isoprene requires the use of a filter for "Organic Gases and Vapours".

Yes.

Yes, provided mechanical ventilation continues whilst you are inside the tank.

What hazards are associated with the carriage of wood pellets in bulk?

Spontaneous combustion and self-heating

Possible dust explosion due to excessive ventilation

Oxygen depletion and generation of carbon monoxide in cargo and communicating spaces

Possible liquefaction of cargo, en route

The inert gas system shall be capable of delivering inert gas to the cargo tanks at a specified percentage in relation to the cargo discharge rate. What is that percentage?

Equal to the cargo discharge capacity.

At least 135% of the maximum discharge capacity.

At least 150% of the maximum discharge capacity.

At least 125% of the maximum discharge capacity.

Why do we use oil free compressors on the cargo side in a cargo cooling plant?

We use oil free compressors in the cargo side to avoid oil spill into the cargo.

We use oil free compressors in the cargo side because they have less RPM than the oil lubricated compressors.

We do not use oil free compressors in the cargo side because the compressors need to be lubricated.

We use oil free compressors in the cargo side because the cargo is cold and to cool down the compressor.

Is the location of the Compass Binnacle critical?

Yes, for the reasons stated in all of the suggested answers

Yes, it should be on the fore and aft centreline of the ship

Yes, it should be away from all electrical power cables

Yes, it should be sited on a non-metallic base if possible.

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

When we are measuring viscosity with a restricted flow viscometer, the preerred sensing device is:

Capillary tube

Bourdon tube

Capacitance probe

Rotating cylinder

Most medium and high speed engines for marine use operate on the four stroke cycle and use direct admission of compressed air into the cylinders for starting purposes. During which part of the cycle does start air admission normally take place?

The first part of the air induction stroke.

The latter part of the expansion (power) stroke.

The latter part of the expansion stroke.

The first part of the expansion (power) stroke.

When securing a non-standardized portable tank on a RoRo vessel, what is a favourable securing angle that will prevent it from transverse sliding?

15 to 18 degrees

18 to 23 degrees

30 to 33 degrees

23 to 30 degrees

When using the echo sounder in a river the soundings indicated may be incorrect, what would be the most probable cause of the error?

There should be no error with a properly working echo sounder

Shallow water effects

The density of the water

The strength of the tide and current in the river

What might safely be used to prevent a load swinging when lifted by a crane?

Personnel underneath the load, holding onto it and restricting its movement.

Guide or tag lines, tended from a safe location.

A cargo net.

Short, jerky movements on the ship's controls.

What should the Third Officer do, if he finds something missing from a lifeboat?

If he finds something missing from a lifeboat, the Third Officer should notify the Chief Officer

If he finds something missing from a lifeboat, the Third Officer should replace the missing item

If he finds something missing from a lifeboat, the Third Officer should search for the missing item

If he finds something missing from a lifeboat, the Third Officer should make a note of it in the lifeboat register

You have to choose one of the following instruments for measuring pressure in an air bottle in measuring range 0 - 35 BAR. Which instrument would you install?

U-type H2O manometer

U-type Hg manometer

Bellow type manometer

Bourdon Tube manometer

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 cargo tanks for liquefied gas carriers are grouped into 4 types depending on the survival capability requirements. Which of tank types is suited for the carriage of all cargoes listed in chapter 19 of the IMO IGC Code from a survival capability aspect?

2PG

On a General Cargo vessel, the placards and labels on containers and pallets containing dangerous goods (IMDG Cargo) must be marked with what information ?

IMO Class, UN Number

Number of individual pieces of cargo

UN number

Weight and volume

When should you use safety goggles?

When you are filling in the engine room log book.

When you are welding.

When you are tidying up in the engine room workshop.

When you are working with power tools or chemicals.

What is the meaning of the expression MARVS?

The meaning of MARVS is Maximum Actual Relief Valve Setting

The meaning of MARVS is Maximum Allowable Relief Valve Setting

The meaning of MARVS is Maximum Automatic Relief Valve Setting

The meaning of MARVS is Minimum Allowable Relief Valve Setting

What is of utmost concern when steel cargoes are carried in a bulk carrier?

Bending moments being greatly exceeded in the seagoing condition

A relatively small range of stability as compared to carrying grain

The springing of hatch cleats as the vessel flexes due to torsional stresses

Deformation due to torsional stresses

What is the most important reason that personnel onboard an LNG carrier should become fully familiar with the vessel, the equipment and their duties as soon as possible?

So that in the event of an emergency appropriate action can be taken to limit damage and avoid injury.

To avoid any problems with shipboard operations and make sure the ship is not delayed on passage.

To keep handover times down to an absolute minimum to reduce costs.

So that cargo can be loaded and discharged as quickly as possible to reduce time in port.

In calculating the amount of an oil cargo, if you start with the Total Observed Volume (TOV), then deduct any measurable quantities in the tanks prior to loading and the volume of any free water found, what figure are you left with?

Gross Standard Volume (GSV)

Total Calculated Volume (TCV)

Gross Observed Volume (GOV)

Net Observed Volume (NOV)

What does OSHA stand for?

Occupation and Safe Health Association

Overseas Sea Hazard Association

Occupational Safety and Health Administration

Occupational Safety and Health Aids

When is track line search normally used?

When the position of the search object is accurate

When a vessel or aircraft has disappeared without a trace

When the position of the search object is not accurate

When a direct communication between the search object and the search facility is available

Which of these conventions is The International Ship and Port Facility Security (ISPS) Code a part of?

STCW - 95

MARPOL

The Anti Terrorist International Agreement

SOLAS

What are the duties of engine room ratings forming part of an engine room watch?

To note all machinery not functioning properly.

To clean and maintain dirty equipment.

To assist in the efficient and safe watchkeeping.

To verify the current operational parameters.

On capesize bulk carriers what problems are associated with welding of the corrugated bulkheads during construction?

Stress concentrations at the corners of the bulkheads

Cracking of cross-deck plating

A reduction in shear forces

Several areas of the bulkheads being 'out of tolerance'

You are assigned to accompany a cargo surveyor during tank inspection. A wall-wash is to take place in tank 3 centre. As the surveyor is preparing his equipment for this, you observe that a drop of sweat falls onto the funnel. What will you do?

Draw the surveyor's attention to it. Take note that he thoroughly cleans the funnel with the wall-wash solvent before collecting the laboratory sample. Report the matter to the Duty officer.

Ask the surveyor to wait in the tank alone while you take the funnel up to the accommodation and rinse it in clean, fresh water.

Immediately instruct the surveyor to leave the tank and collect a substitute set of equipment.

Nothing. The odd drop of sweat will not usually make any difference.

What extra precautions should be taken by the officers and crew if some of the passengers are disabled, i.e. using wheelchair, cane, blind etc.?

Locate them in large cabins to ease their stay.

All passengers that will require extra assistance, also in case of an emergency situation/ evacuation, must be registered in order to allocate crew to assist them if needed.

Passenger with some form for disability must travel with accompany, and live in same cabin or next door.

They must be placed in cabins on the same level as the muster station.

Chemicals and harmful substances are safely stored in a designated locker on board, why?

For safety reasons. Many substances found onboard are capable of damaging the health and safety of those exposed to them. Before any chemical or harmful substance is delivered to a crewmember, the personnel shall receive training, instructions and information so that they know and understand the risks arising from use.

For safety reasons and stock control. When chemicals or harmful substances is delivered to a crewmember, the user shall sign for the amount received.

Chemicals and harmful substances must be kept away from passengers so that they don't steal it.

For stock control. Most of the chemicals and harmful substances we use on board are expensive.

When there is doubt about the freshness of the atmosphere in enclosed or confined spaces, what action should be taken?

Open doors and manholes

Arrangements should be made for testing of the atmosphere to ensure maintenance of 21% oxygen of the space

Ro-ro decks are always ventilated in advance of an operation

Supply filter masks to all crew working on ro-ro deck

Who is responsible for the safe keeping of the ship's documents?

Chief Officer

Chief Engineer

3rd Officer

Master

How can the effects of ‘lateral drag’ be reduced when loading heavy machinery?

By using a shore crane

By a quick loading operation

By listing the vessel to counter the loading operation

By a controlled and very slow loading operation

Some refrigerated cargoes can be more easily damaged than others due to rough handling. From the options given, select the cargo which is most likely to be damaged due to the use of poor handling techniques.

Potatoes in paper sacks.

Frozen beef in cartons.

Chilled plums in cartons.

Chilled meat in cartons.

What should be done with the data logger printouts after completing the discharge of a refrigerated cargo?

They should be retained onboard for a minimum of 2 years.

They should be handed over to the cargo receiver.

They should be retained onboard indefinitely.

They can be discarded once the discharge is completed.

The majority of marine diesel engines operate with either a pulse or a constant pressure turbocharging system. What is the main difference between these two systems?

Pulse systems have all of the cylinder exhausts connected to a common large exhaust gas manifold

Pulse systems always have a turbocharger for each group of three cylinders.

Constant pressure systems have all engine cylinder exhausts connected to a common large exhaust gas manifold.

Constant pressure systems only ever have a single turbocharger irrespective of the number of cylinders on the engine.

In accordance with SOLAS and other international regulations, certain important machinery functions, such as operation and control of the steering gear and propulsion machinery, must be tested at specified times. When should these tests be carried out?

Only following maintenance.

Only at stand by engines.

Prior to arrival and departure from port and following maintenance.

Only following drydock.

The maximum cylinder pressure is lower than normal due to:

Fouling in the turbocharger.

Fuel oil filters are clogged.

Lost propeller.

Fuel oil with poor combustion properties.

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.

What is the approximate normal daily cargo "boil off" rate for an LNG carrier of 125000 cubic metre cargo capacity?

From 0,75 % to 0,80 % per day of total cargo.

From 0,30 % to 0,35 % per day of total cargo.

From 0,15 % to 0,20 % per day of total cargo.

From 0,01 % to 0,05 % per day of total cargo.

During pre-entry checks of an enclosed space onboard a liquefied gas carrier it is necessary to check the condition of the atmosphere. If the gas detection equipment to be used for the checks included a catalytic type combustible gas indicator, an absorption type toxic gas detector and a paramagnetic type oxygen analyser, which would be the preferred order for the checks?

Oxygen content followed by hydrocarbon gas content and then toxic gas content.

Toxic gas content followed by hydrocarbon gas content and then oxygen content

Hydrocarbon gas content followed by oxygen content and then toxic gas content.

Hydrocarbon gas content followed by toxic gas content and then oxygen content.

Many medium and high speed marine diesel engines have connecting rods with an obliquely (angled) split in way of the bottom end which may have serrated faces. What is the main reason that the connecting rods are manufactured with this oblique split?

It reduces the inertial loads generated during operation as the connecting rod can be made lighter.

It allows the bottom end bearing to be large but still allows the piston to be withdrawn from the top of the cylinder.

It allows larger bottom end bolts to be used without risk of fouling the bottom of the oil pan.

It gives better access to the bottom end bolts.

What would you do if you saw a stevedore starting to lash a container whilst other containers were being stowed above it?

Tell him to wait until overhead containers have been stowed

Inform the stevedoring foreman

Tell him to hurry

Inform the duty officer

What is this?

A hydrostatic release unit

A liferaft release unit

A slip hook

An antistatic release unit

Which is the most important factor in the safety awareness of the ships crew?

The safety awareness of the senior officers

The level of emergency-preparedness

The quality of emergency drills

The shipboard training provided

When testing boiler water, should the sample be:

As hot as possible.

At lowest possible temperature.

At room temperature.

It makes no difference.

When a blackout occurs: what should be your first reaction?

Investigate the cause of the blackout

Inform the Chief Engineer

Inform the bridge about the reason for blackout, and expected time to restart.

Cancel audible alarms

How many two-way VHF radiotelephone apparatus shall be provided on board a passenger ship of 500 gross tonnage and upwards?

One for each survival craft

It is required to have a fixed two-way VHF fitted in a survival craft

What is the purpose of an evacuation analysis?

To provide port state control inspectors with reports

To provide the passengers with written results of the analysis

To identify and eliminate, as far as practicable, congestion which may develop during an abandonment

To ensure the ship can be evacuated in less than 30 minutes

Some of the cargoes carried onboard liquefied gas carriers are classed as saturated hydrocarbons. What are the features of the common saturated hydrocarbon cargoes (e.g. propane and butane) that are carried on these vessels?

As liquids they are colourless, odourless and are chemically non-reactive.

As liquids they are yellowish brown in colour, odourless and are chemically reactive.

As liquids they are yellowish brown in colour, with a sweet odour, and are chemically non-reactive.

As liquids they are colourless, with a sweet odour, and are chemically reactive.

Marine steam boilers are protected with a number of safety features which are designed to prevent damage to the boiler due to overheating or overpressure. How is this protection achieved when a very low water level condition (often referred to as low low level) develops during operation?

The main and auxiliary feed control valves open fully while all burners continue to operate.

All burners are automatically and immediately shut off.

All but one of the burners is shut off with the remaining burner being reduced to minimum firing.

All burners are automatically set at minimum firing rate.

What information is required on passengers prior to departure?

All persons on board shall be counted and details of persons who have declared a need for special care or assistance in emergency situations shall be recorded and communicated to the Master

The safety officer shall count the number of passengers

It is sufficient to count the number of passengers prior to departure

Details and number of persons who have declared a need for special care or assistance in emergency situations shall be recorded and communicated to the Master

At what temperature should the meat and fish freezers be maintained?

- 20° C

- 25° C

- 30° C

- 10° C

When carrying fishmeal without anti-oxidant which of the following stowage patterns is recommended under the IMDG Code?

The block stow with extensive internal channelling

The double strip stow with extensive athwartships channelling

The block stow with no internal channelling

The compact stow with limited channelling

What is the maximum length of a fire zone on any deck?

50 meters

100 meters

40 meters

30 meters

What can cause crewmembers to abdicate their safety roles?

Inadequate fire-fighting training

No lifeboat drills for passengers

Lack of leadership

Inadequate fire-fighting provisions

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 are the symptoms that would indicate the filter/drier unit in a refrigeration system was becoming blocked?

A large temperature drop across the drier with possible icing of the casing.

Pressure drop before the driver.

A hammering noise from the drier.

The drier casing temperature increases.

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

Left with autospin operating to give periodic turning.

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

Turning with the turning gear and gland steam on.

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

Refrigeration plants using ammonia as the primary coolant have been fitted to some reefer vessels. When designing such a ship which aspect, from the options given, would be the most important consideration?

The temperature range that the plant would be expected to operate at.

Crew safety.

Installing a suitable control system for the plant.

Availability of the gas.

What is the definition of sludge control?

The cargo tanks are to be washed that often so recidues do not accumulate in large quantities.

The sludge is controlled by use of special instruments.

This is done in port by a special sludge control squad.

Visual control of the sludge.

Which of the following is false when a casualty is bleeding?

Encourage patient to lie quite and re-assure

Treat for the shock

Control bleeding

Cover the wound with a cloth

here do you find detailed information and specific technical requirements for life-saving appliances?

SOLAS

Safety Management System

ISM Code

Life-Saving Apliance Code (LSA Code)

While on boiler watch in the engine room a rating is requested to assist with taking on stores. The task will take about half an hour. What should the rating do?

Just ignore the request to assist with the stores.

Go and help with the stores but go back and check the boiler every 10 minutes.

Raise the boiler water level above normal to make sure there is sufficient water while he is busy with the stores.

Contact the engineering officer of the watch for permission to assist and to arrange a relief for the duration of the store taking.

Frozen cargo such as lamb carcasses requires careful loading to ensure a neat and tight stow in the hold and requires the crew and stevedores to have considerable skill to achieve this. Which of the options given is the main reason for this?

The carcasses are difficult to pick up when handling.

The carcasses are heavy.

The carcasses are of an irregular shape.

The carcasses are often large.

What will a cadet find in the maintenance manual?

A Cadet will find machinery spare parts in the maintenance manual

A Cadet will find a lubricating chart in the maintenance manual

A Cadet will find grease nipples in the maintenance manual

A Cadet will find grease in the maintenance manual

On a RoRo vessel, when checking cargo lashings during the voyage what must duty crew members pay special attention to?

The number of lashings per cargo unit

The tightness of lashings per cargo unit

The type of cargo lashing materials

When tuning a cascade control system, where do you start

The slave controller with the master controller in manual mode

The master controller

The slave controller with the master controller in auto mode

Both at the same time

The power requirements for the excitation winding/circuit for a 3-phase alternator operating at rated output power are supplied by:

The alternators output itself via the automatic voltage regulator and the prime mover

The main switchboard via a three phase rectifier

Independent battery supply with the AVR

Independent power supply and rectifier unit

Many LNG vessels have spherical cargo tanks. Which of the statements given in the options is the most accurate?

Using spherical tanks means double hulls are not required.

Using spherical tanks means that the cargo can be carried at pressures well above atmospheric.

Using spherical tanks allows more cargo to be carried as the tank is positioned above the deck.

Using spherical tanks means only a partial secondary barrier is required.

The space between the cargo tank liquid dome and dome cover for an LNG carrier is maintained inerted, usually using nitrogen. What is the maximum allowable O2 content of the nitrogen used for this purpose?

1% O2.

3% O2.

4% O2.

5% O2.

Why must inert gas from a combustion-type generator never be used when preparing cargo tanks for ammonia?

Because of the high oxygen content in inert gas.

Because ammonia reacts with the carbon dioxide in inert gas.

Because of the high water content in inert gas.

Because of the high temperature in inert gas.

At what latest time shall doors, side scuttles, gangway doors, cargo- and coaling ports and other openings which are to be kept closed watertight at sea be closed at the start of the voyage?

Before leaving the port

Before entering open waters

Before leaving the pilot station

Before leaving the berth

Why are zinc anodes sometimes fitted in the seawater side of heat exchangers?

To prevent accumulation of marine growth

To reduce salinity

To prevent scaling

To protect against corrosion

Данный онлайн-тест состоит из 90 случайных вопросов из тестов CES 5.1 по выбранной вами тематике.