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 display of a radiotelephone-installation shows the following selections: Transmitting mode: H3E Transmitting frequency: 2187,5 kHz The transmitting mode indicator is “flashing”. This can mean that:

You are ready to press the send buuton

The radiotelephone-alarm signal must be transmitted now

The transmitting mode is not compatible with the chosen frequency

The “H3E”mode is to be selected before transmitting on the 2187,5 kHz band

The position that is determined by built in GPS-receiver in an Inmarsat-EPIRB has an accuracy of about:

1200 meters

2200 meters

4200 meters

200 meters

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

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

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

The coils should be blanked.

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

The coils should be filled with water and blanked.

You want to stop your ship as quickly as possible without too much change in the heading. What can you do to achieve this?

Use the rudder hard over both sides while reducing engine power, so-called "high frequency rudder cycling"

Do a zig zag manoeuvre

Put the engine full astern

Make a complete turning circle

The engines are going astern and the ship is making sternway of about 1.5 knots with the rudder hard to starboard. What effect will this have on the ship's progress?

This will give the stern a lift force to port

There will be no lift force and the ship will go straight astern

This will give the stern a lift force to starboard

The rudder will have no effect when the ship is making sternway, it should be in the amidships position when going astern

If making a new pilot ladder onboard, which of the following ropes would you use in its construction as side ropes on which the steps are fastened?

Uncovered manila rope.

Polyester rope.

Polypropylene rope.

Nylon rope.

On the figure 4 possible definitions of the term "FORWARD BREAST LINE" are given. Which one is the correct one?

Forward breast line is given by B on the figure

Forward breast line is given by A on the figure

Forward breast line is given by C on the figure

Forward breast line is given by D on the figure

On a bulk carrier which is to load sugar, which of the following situations would result in the cargo holds failing inspection?

Hardened rust spots on the lower bulkhead stool and hopper tank plating

Rust-stained tank top plating

Traces of insect infestation in the bilges

Hardened rust spots on shell plating

According to 33 CFR 156, oil tankers trading in US waters are required to test and document the testing of cargo transfer hoses and transfer pipe system. What is the minimum requirement when testing these components?

That no leakage occurs under static liquid pressure of at least 1.25 times the maximum allowable working pressure.

That no leakage occurs at the nominal anticipated working pressure.

That no leakage occurs under dynamic fluid pressure of less than 1.5 times the maximum allowable working pressure.

That no leakage occurs under static liquid pressure of at least 1.5 times the maximum allowable working pressure.

What can be done to help pump out water from the cargo space of a bulk carrier, when washing down during cleaning operations?

Chief Officer to ballast ship to provide large stern trim

Vessel trimmed by bow

Vessel to be ballasted to even keel condition

Wash water to be kept to a minimum

The typical current gain of a common emitter transistor is

10-200

500-5000

1-1000

1-10

Many LPG carriers are designed to carry the cargo in a fully refrigerated condition. What is the normal maximum cargo tank pressure on a fully refrigerated LPG carrier?

10 bar gauge pressure.

18 bar gauge pressure.

0.7 bar gauge pressure.

7 bar gauge pressure.

What should be the first indication that the engineroom watchkeepers get that there is oil or water leakage in the engineroom??

They should see it on the tank top or in the bilge well during regular inspections.

Bilge alarm should sound

A low level alarm should sound for one of the oil or water tanks.

They should hear the bilge pump start up automatically.

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.

On the diagram provided, there are four (4) possible directions indicating the term "AHEAD". Which one is the correct?

Ahead is given by A on the figure

Ahead is given by D on the figure

Ahead is given by B on the figure

Ahead is given by C on the figure

Double-bottom tanks of a General Cargo ship are to be ballasted with sea water; which of the following are the most important checks to be made ?

All air vent pipes open and clear, pipeline valves open to correct tanks and other tank valves checked closed

All air vent pipes open and clear, pipeline valves closed to correct tanks and other tank valves checked open

All air vent pipes closed ,pipeline valves open to correct tanks and other tank valves checked closed

All air vent pipes open and clear, pipeline valves open to all tanks

What is Inert Gas?

It is a gas containing insufficient oxygen to support the combustion of hydrocarbons.

It is a gas containing too much hydrocarbon vapour to support combustion.

It is a gas containing no oxygen.

It is a gas containing less than 21% by volume oxygen.

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.

For transporting a casualty with a fracture; If a Neil-Robertson stretcher is not available:

Wait for the Neil-Robertson strecher to arrive

A wide wooden board may be used

One person should lift the casualty using Fire-mans lift

Two persons should lift the casualty with great care

Why is nitrogen used for the inerting of hold spaces and interbarrier spaces on LNG carriers?

Because of the high oxygen content of combustion generated inert gas.

Because the carbon dioxide in combustion generated inert gas would freeze when in close proximity to the cargo.

Because of the high humidity in combustion generated inert gas.

Because of the high temperature of combustion generated inert gas.

What must you ensure when using portable slopes to discharge ro-ro units?

They must be new

They must be free of dirt

The surfaces must be of the fish-bone type

They must be exactly aligned with the units’ tyres

When would gassing-up of cargo tanks on an LNG carrier normally be necessary?

To remove inert gas or nitrogen from the cargo tank atmosphere.

Prior to loading each cargo.

When the tank atmosphere needs to be made inert.

During each ballast voyage.

When checking the zero point on a combustible gas indicator that is to be used to detect hydrocarbon gases in an empty cargo tank which method should be used from the options given?

Pass oxygen gas through the sample chamber

Pass fresh air through the sample chamber.

Pass carbon monoxide gas through the sample chamber.

Pass methane gas through the sample chamber.

It is possible to successfully mix certain types of refrigerated cargo in the same space if they are compatible. Sometimes apparently dissimilar cargoes can be successfully mixed. Which one of the combinations given in the options could be successfully carried as a mixed cargo in the same cargo space?

Oranges and butter.

Oranges and rock lobster.

Oranges and bacon.

Oranges and apples.

What is the correct name of the tool shown in the sketch?

Pliers

Adjustable wrench

Chisel

Open end wrench

What is enthalpy?

Enthalpy is the sum of the external energy of a substance plus the product of the substance volume multiplied by the pressure exerted on the substance by it’s surroundings.

Enthalpy is the difference between the compressor suction temperature and the condensate return temperature.

Enthalpy is the sum of the internal energy of a substance plus the product of the substance volume multiplied by the pressure exerted on the substance by it’s surroundings.

Enthalpy is the sum of the internal and external energy of a substance plus the product of the substance volume multiplied by the pressure exerted on the substance by it’s surroundings.

On a Container vessel, how should the first tier of under-deck containers be loaded onto a non cellular vessel?

Onto dunnage laid athwartships over the tank top

Directly onto the tank top

Onto dunnage laid directly under the containers' bottom rails

Onto dunnage laid fore and aft over the tank top

On a RoRo vessel, what must be considered when planning the loading of ro-ro cargoes on ramps?

SWL and loading limit of the ramp and Minimum clearances for the operation of ramp doors

The extent of lashings due to the ramp slope

Cargo volumes

What is a Marine Evacuation System?

Liferafts supported by Fast Rescue Boats and Lifeboats

Evacuation Chute(s)/Slide(s) and Liferafts

Helicopter evacuation

Assistance from other ships

What are the type of signal output is derived from a NiCr/Ni thermocouple?

mA.

Ohm.

mV.

Watt

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

Some ships generate electrical power at 440 Volts, but then step up this voltage to supply specific electrical equipment. One common example, may be to feed a large bow thruster. Why is this done?

A large bow thruster will draw very large currents at low voltage. Being typically remote from the generator, significant voltage drops would occur at low voltage.

The shipyard could not purchase High Voltage generating plant at the time of manufacture, so they used what was available at the time.

Manufacturers can supply High Voltage bow thrusters at less cost, and the power factor is improved.

The overall ship's electrical load does not justify High Voltage generating plant. This method allows more power to be delivered to the bow thruster at low running cost.

What is the meaning of the term "Steady as she goes" when acting as helmsman?

Reduce the number of helm movements used when steeriing a set course

Try to reduce the continuous swinging either side of the course when steering a compass course.

Keep the applied rudder constant until the next helm order.

While altering the ships head, the instruction "steady as she goes" means reduce the ships swing as rapidly as possible and steady on present course

What is mean by bulk Grain cargoes have a low angle of repose?

Likely to produce toxic gas

Always stable

Unlikely to shift

Liable to shift

Your ship has its main entry door from the maindeck on the starboard side, a few metres back from the front of the accommodation. It is also the closest emergency exit from the ship's offices and the crew mess-room in the event of an emergency. You are about to commence loading cargo. There are no significant security concerns. What should happen to the door?

It can be open, provided the wind is blowing away from the accommodation.

It should be closed and locked.

It should be closed, but not locked.

It should be open in case an emergency occurs.

On a Container vessel, how would you deal with a containerised scrap metal fire?

Cool the container using seawater

Allow the cargo to smoulder

Extinguish by smothering

Extinguish using seawater

You are on a power-driven vessel underway in open water. You sight these lights on the port bow, on a steady bearing. The distance is closing. What are you looking at and what action will you take in compliance with the International Regulations for Preventing Collision at Sea?

This is a power-driven vessel, more than 50 metres in length or less than 50 metres in length and showing a second masthead light, restricted in her ability to manoeuvre. The sidelight of a second vessel can be seen beyond her. Under rule 18, I am obliged to keep clear of the first vessel and will therefore take appropriate avoiding action.

This is a power-driven vessel engaged in towing, less than 50 metres in length, length of tow under 200 metres and the tow, both being restricted in their ability to manoeuvre, seen from the starboard side. Under rule 18, I am required to keep clear and will take appropriate avoiding action.

This is a power-driven vessel engaged in towing, more than 50 metres in length or less than 50 metres in length and showing a second masthead light, length of tow 200 metres or more, not under command. I will keep clear under rule 27.

This is a power-driven vessel engaged in towing, more than 50 metres in length or less than 50 metres in length and showing a second masthead light and the tow, the combined length of which is under 200 metres. The towing vessel is restricted in her ability to manoeuvre. I am seeing their starboard sides. The bearing is steady and risk of collision therefore exists. I will maintain my course and speed under rule 17.

What is the main fire fighting medium for tank deck on gas and chemical carriers?

There is not any main medium for tank deck fire fighting on gas and chemical carriers

Foam is the main medium for tank deck fire fighting on gas and chemical carriers

Freshwater is the main medium for tank deck fire fighting on gas and chemical carriers

Chemical powder is the main medium for tank deck fire fighting on gas and chemical carriers

What is a "consignee"?

Any person or company which seeks to transport a consignment of cargo by sea.

Any person, organization or government that prepares a consignment for shipment.

Any person, organization or government entitles to take delivery of a consignment.

Any person or company responsible for the operation of a vessel which carries a consignment as freight.

What is the purpose of Material Safety Data Sheets?

To provide all personnel including emergency personnel with procedures for handling or working with that substance in a safe manner

To provide personnel in deck- and engine department with procedures for handling or working with that substance in a safe manner

To provide the safety officer with procedures for handling or working with that substance in a safe manner

To determine if the substance is flammable or not

What kind of Crude Oils are required by MARPOL to be specifically listed in a tanker's Crude Oil Washing manual as unsuitable for cleaning by that method?

Those with highbenzene content.

Those with high basic sediment and water content.

Those with high pour point or viscosity.

Those on the IMO Oil Tanker Technical Committee COW banned list.

When cross-flooding arrangements to correct unsymmetrical flooding and excessive heel angels in damaged condition are installed in passenger ships, what is the maximum angle of heel after flooding but before equalization?

10 degrees

30 degrees

15 degrees

20 degrees

What do the letters "VOC" stand for when discussing types of oil cargo?

Volatile Organic Compound.

Valuable Oil cargo.

Volatile Oil Cargo.

Volumetric Oil Calculation.

Anyone who makes or permits a false entry to be made in the logbook shall be punished by imprisonment of up to 1 year according to:

The International Maritime Organization's Act of Maritime Activities

The Ship Safety and Security Act - Section 65.

Commissions of Inquiry of Maritime Activities

The Maritime Act

The benefits of emergency response plans are only realized if:

survival craft are launched

escape routes are used

lifejackets are put on

the crew carries out the plans

What is the difference between methane and ethane?

Ethane has two more carbon atoms and two more hydrogen atoms.

Ethane has double bonding between the atoms.

Ethane has two more carbon atoms and one more hydrogen atoms.

Ethane has one more carbon atoms and two more hydrogen atoms.

Where do you load dangerous goods?

Dangerous goods shall only be loaded in designated ares on the ro-ro deck

The driver of a tank lorry can decide where to park the vehicle

The officer in charge of loading can decide where to load dangerous goods if the number of vehicles and passengers are limited

As long as the ship is certified to carry dangerous goods there are no restrictions

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

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

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

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

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

When a Classification Society surveyor identifies corrosion, structural defects or damage to the hull of a vessel, machinery and / or any piece of equipment which, based on the society's rules and in the opinion of the surveyor affects the ship's class, which of the following is that surveyor likely to issue?

A Notification of Deficiency.

A Condition of Class.

A revised Class Notation.

A Notification of Detention.

Which statement is true?

Normal temperature of the lub oil after the cooler is approx. 45 C.

When the ME is running, the Fresh Water enters the engine at the top and leaves the engine at the bottom

Normal temperature of the oil after the cooler is approx. 65 C.

Minimum scavening air temperature is 60 C to avoid dewing in the scavening air cooler

What is the recommended range for the pH-value for the water in a diesel engine cooling system engine cooling water be maintained?

Above 10

Between 5 and 7.

Between 7 and 10.

Below 5.

What is the most important factor to be considered when planning the lashing system for a particular sea route?

The quantity and type of lashing materials

Transverse accelerations

The size and weight of packages/cargo units to be loaded

The breaking strength of lashing materials

Which cleaning agents for machinery space are important to use due to the oily water separators function?

Any kind of chemicals.

No kind of chemicals.

An emulsification agent.

A non-emulsifying agent with self splitting emulsifiers.

Too high exhaust temperature in one cylinder becomes because of:

Nozzle ring of turbocharger fouled or partially choked.

Scavenge ports dirty.

Compression pressure too low.

Speed governor defective.

When a ro-ro unit/cargo is damaged what should the duty officer do if he is not carrying a camera?

Sketch the damaged unit/cargo

Note the manufacturer's details

Make a damage report and rough sketch of the damage

Note the stowage location at which the damage occurred

What is the minimum number of lifebuoys that shall be provided with self-igniting lights an self-activating smoke signals?

50% of the total number of lifebuoys

At least 1

Tab washers are often fitted to bolted assemblies to prevent the nuts and bolts slackening. For an assembly where the nuts are positioned at the top select the option which describes the correct method of locating the tab washers.

Bend the inner tab up against one flat of the nut and the other tab down over the edge of the component.

Bend the outer tap down over the edge of the component and leave the other tab flat against the component.

Bend the outer tap up against one flat of the nut and leave the other tab flat against the component.

Bend both tabs up against opposite flats of the nut.

When should a master agree to load a cargo of concentrates?

When he is fully satisfied that the actual moisture content of the cargo is less than the Transportable Moisture Limit (TML)

After a laboratory analysis of the cargo has been carried out

As soon as the cargo holds have been passed for loading

Once the actual moisture content of the cargo has been declared by the shipper

What is most important when using expanded square search?

Accurate navigation

Fixed rate of turn

Fixed turn radius

Constant speed

Which of the following letter combinations represents a temperature controller on a process and instrumentation diagram?

PIC

TIC

FIC

The centre cargo tanks on your ship are made of stainless steel, while the wing tanks are made of mild steel with a zinc coating. Your ship is to load some Sulphuric Acid. Which tanks will it be loaded in?

It can not be loaded into any of the tanks on the ship.

Only the stainless steel centre tanks.

Only the zinc coated wing tanks.

Both the stainless steel centre tanks and the zinc coated wing tanks.

What is an analogue signal?

A measure of voltage using an oscilloscope.

A stable electric signal.

A continually variable electric signal.

A measure of electric current.

During a ship to ship cargo transfer operation it is required that:

The main engine be on 1 hour notice.

None of the listed alternatives need be maintained.

An efficient engine room watch with the main engine on standby be maintained.

The main engine be on 1/2 hour notice, and no watch need be maintained in the Engine room.

Select the three main checks that must be made to ensure that a hold of a General Cargo Vessel is fully weathertight before sailing ?

Hatch cover fully secured, hold access battened down and ballast tanks checked dry

Hatch cover fully secured, hold access battened down and bilge sounding pipe caps on

Hatch cover fully secured, ballast tank ventilators closed down and ballast tank sounding pipe caps on

Hatch ventilators closed, cranes secured and bilges pumped out

What should be continuously monitored when carrying DRI cargoes?

Hydrogen emissions

Integrity of the inert gas blanket

Nitrogen emissions

Cargo temperatures

Which type of material is normally used in the construction of a cargo tank designed for transporting LPG at atmospheric pressure?

Stainless steel.

Aluminium.

9% Nickel steel.

Carbon-Manganese steel.

With regard to the characteristics of a mafi trailer what must be ensured prior to unfastening this unit on board a ro-ro vessel?

That the cargo details have been checked

That there is sufficient room for it to be driven away

That cargo on the trailer is not damaged

That after unfastening it will not move

What is the advantage of a transmitter with a narrow measurement range?

Do not need any calibration

Easy installation

Lower purchase cost

Better linearity and increased accuracy

When maintenance work is to be carried out on an electric motor driving a centrifugal water pump with automatic start, should you;

Ascertain from the senior watchkeeper if it is okay to start work, isolate the valves then commence work.

Set in local control, isolate the suction and delivery valves then commence work.

Isolate the suction and delivery valves then inform the electrician that you are starting work.

In conjunction with the senior watchkeeper and electrician, isolate valves, electrical supply, automatics and post 'Do not operate' signs before commencing work.

To prevent inadvertent leaks, bunker manifold not in use should:

Have blank flanges fitted and tightened with some bolts in place

Have blank flanges fitted with gaskets and tightened with all bolts in place

Have blank flanges fitted with gaskets and tightened with some bolts in place

Have blank flanges fitted and tightened with all bolts in place

In which part of the oceans and in what season is Parametric Rolling likely to be experienced?

North Pacific winter

North Atlantic winter

Around South Africa at any time of year

North Pacific summer

At what angle should a cargo lashing meet an eye plate?

At 90 degrees

At 30 degrees

At 60 degrees

At 45 degrees

A new reefer vessel is described as having 'Cargo spaces lined with stainless steel, refrigeration supplied by circulating cold air around the outside of cargo spaces, no hatches on deck and one light crane'. Which of the vessel types given in the options is the most likely type being described?

A vessel designed for the carriage of fish at very low temperatures.

A vessel designed for the carriage of specialised fruit.

A vessel designed for the carriage of orange juice in bulk.

A vessel designed for carriage of chilled meat products.

Which is the "STARBOARD BOW", in the figure?

The Starboard bow is indicated by D, in the figure

The Starboard bow is indicated by C, in the figure

The Starboard bow is indicated by A, in the figure

The Starboard bow is indicated by B, in the figure

Fast rescue boats shall be stowed and kept in a state of continuous readiness for launching:

By 6 persons

In less than 5 minutes

By assigned crew in less than 15 minutes

In less than 10 minutes

The fire integrity of any bulkhead shall be maintained

At the openings and penetrations

Only at the continuous/solid part of the bulkhead

Don't know

Up to 5 meters above the deck level

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 advantages does the radar have over the eye?

Subject to night adaptation

Simplifies the overview

Poor at assessing distance

Degradation through glare

What are the duties of the "Standby Watch keeper" when he is not on the bridge?

Remain in the expected location, available for immediate call from the bridge

Tidy up the accommodation and clear the mess rooms

Return to his cabin and catch up with some sleep

Patrol the ship and report anything unusual to the bridge

When we are measuring salinity with a salinometer, the sensing device is:

Electrodes

Inductor capsule

Capacitance probe

Strain gauge

What is the requirement for isolating slop tanks on combination carriers when cargoes other than liquied cargoes are carried?

Single shut off valve.

Double shut off valves.

A blank flange.

Remove spool piece.

What basic information do we get from the pump's flow-head curve?

We get information about the NPSH.

We get information about the pump's suction head.

We get information about the pump's back pressure.

We get information about the pump's lifting height and liquid flow.

What is the main reason for adding inhibitors to some liquefied gas cargoes such as ethylene oxide and vinyl chloride?

To reduce the boil-off rate of the cargo.

To prevent polymerisation of the cargo.

To control the temperature of the cargo.

To reduce the toxicity of the cargo.

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

One device in each tank.

At least two devices in each tank.

There is no requirement to number of devices.

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

A bulk carrier is loading to summer loadline marks ; to which part of the loadline marks does the vessel load in salt water (R.D.1025)?

The bottom of the summer mark

The winter mark

The top of the summer mark

The fresh water mark

Which of the following requirements regarding embarking, disembarking and stowage of vehicle on ferries corresponds to present regulations? (NSCL 4/11.4).

In ships where passengers and cars are using the same access (ramp/gangway) embarkation/disembarkation of passengers and cars shall not take place simultaneously.

Vehicles shall at all times be secured against shifting.

In rough weather the clearance between the cars shall be increased to 800 mm.

During crossing, ports on the car deck shall be closed and battened.

What is the meaning of the abbreviation PCB

Positive Colour Board

Printed Circuit Board

Power Control Bridge

Positive Current Biased

Two reference points for pressure exist, absolute zero and atmospheric pressure. What do you call pressures measured relative to absolute zero?

Absolute pressure

Vacuum pressure

Pressure drop

Gauge pressure

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