Heim Online-Tests CES Gas tanker Deck Support Test online CES 5.1 for Deck department, Support level, Gas tanker vessel

Online-Test: Test online CES 5.1 for Deck department, Support level, Gas tanker vessel

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A wire aerial for an MF/HF –transmitter must be suspended between isolators:

to prevent contact with earth

to make the ………way for aerial currents as long as possible

to prevent burns when touching the aerial

Don't know

When you have an urgent message concerning the safety of a vessel, aeroplane or any other means of …………or a person, then you have to use:

SECURITE

MAYDAY

PAN PAN

Don't know

If the radar is set onto the Relative Motion Display, what would an echo of a target with no trail indicate? Note this the trail of the echo and not a vector.

The target is on the same course and speed as own ship.

The target is stopped and making no way through the water

The target is on a constant bearing and getting closer to own ship.

The target is on a collision course with own ship.

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

When carrying LNG cargoes it is useful to have information about its thermodynamic properties. What is a common source of information that can be used to obtain values for a wide range of these properties?

The IGC code.

The cargo manifest.

Material safety data sheet.

A Mollier chart.

Indicate the correct name for the tool on the sketch:

Grinding machine

Flat file

Chisel

Pliers

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

LNG carriers are fitted with a deck water spray system? In addition to providing protection against fire and protection for the crew and cooling in the event of a fire in the cargo area, what is the other main purpose of having this system?

To heat the cargo area in case of a cargo spill incident.

To make it easier for the crew to keep the decks clean.

To extinguish fires inside the cargo tanks.

To flush cargo spill overboard and protect crew in case of a cargo spill incident.

On a General Cargo vessel, to what Proof Load would a 16T SWL derrick be tested?

20T

18T

22T

24T

Which shipboard publication sets out calculations for cargo lashings?

The Cargo Securing Manual

Carriage of Safe Cargoes

SOLAS 74/78

The Cargo Stowage and Security (CSS) Code

What are some of the most important tasks to carry out on a bulk carrier, before commencing hatch cleaning operations?

Collect tools and hoses

Hatch covers to be opened and cranes ready

Sufficient manpower available and ER informed

Risk Assessment, Permit to work /enter and tool-box talk

What does MARVS mean?

Maximum ROB of Vapour.

Maximum Recovery Setting.

Minimum Allowed Relive Valve Setting.

Maximum Allowed Relive Valve Setting.

For what purpose are we using a Mollier diagram?

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

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

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

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

This circuit consists of a voltage source V, a change-over switch S, a resistor R and a capacitor C. The voltage/time figures 1 to 4 show changes in the voltage V(C) when the switch S is suddenly shifted from position 1 to 2 at time t = 0. Only one of the diagrams is correct. Which?

Figure 4

Figure 2

Figure 1

Figure 3

What is the main purpose of the reliquefaction plant fitted to many liquefied gas carriers?

It is used to change the cargo vapour back to liquid keep the cargo cooled.

It is used to discharge the cargo when the cargo pumps don't work.

It is used to cool down the cargo tanks before loading.

It is used to change the liquid cargo to vapour to heat the cargo if it is too cold.

Many modern large slow speed diesel engines used for main propulsion operate with a so called constant pressure turbocharging system. What is meant by constant pressure when used to describe such a turbocharging system?

Pressure variations in the scavenge air supply are avoided by supplementing the air supply with air from the auxiliary blowers so keeping a constant pressure across the load and speed range.

Pressure variations at the turbocharger inlet are damped out due to the large volume of the exhaust receiver and the short lengths of pipe from individual cylinders.

The exhaust pipes from groups of three cylinders are joined together before entry into the turbocharger so that the exhaust pulses from each cylinder cancel each other giving a constant inlet pressure.

The exhaust gas pressure is maintained constant by using a bypass waste gate to dump excess pressure at high engine loads.

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

Gas-hazardous and Gas-safe.

Gas-filled and Gas-free

Gas-dangerous and Gas-safe.

Gassed-up and Gassed-down.

How would pirates attacking a ship be communicated to another ship?

"My ship is under attack by pirates"

"My ship was under attack by pirates"

"My ship has pirates"

"My ship will be under attack by pirates"

Does a joint of meat that has been filled with a stuffing mixture take longer or shorter to cook? (Select the most correct answer).

It makes no difference - they will take the same time to cook.

Shorter.

It depends on the amount of stock or other liquid added to the stuffing mixture.

Longer.

Is it allowed to have animals on the car deck during a voyage?

Yes, if they are safely placed in a suitable vehicle

Only if the weather conditions permit

It is up to the captain to decide

To evaluate the condition of a heat exchanger the following measurements should be recorded:

Pressure drop

In and outlet temperatures, and flow rates for both media

In and outlet temperatures for both media

In and outlet temperatures on one media

What is one way to try to overcome people's fears about loved ones?

Inform them about the nature of the emergency.

Prevent them from looking for their loved ones.

Assure them that the crew is sweeping the entire ship for passengers.

Give them a lifejacket to put on.

A deaf man is reading the paper in the lounge when the emergency alarm sounds. How do you expect him to react?

He will ask the crew for help.

He will get up and go to the muster station.

He will ask someone what is going on.

He will continue reading the paper.

How could you calculate the Stowage Factor of a cargo commodity after loading in a General Cargo vessel?

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

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

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

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

Does MARPOL apply to gas carriers?

Only Annex IV.

No.

Yes.

Only Annex V.

What are the people probably doing in the picture?

The people are fighting a fire

The people are playing with water

The people are hosing down the cargo hold to clean it.

The people are pressure testing the hull plating

The decision to abort a proposed or ongoing ship to ship mooring or cargo transfer operation rests solely with:

The Sen.Off.Deck of the constant direction or anchored vessel which is to discharge the cargo.

The Pilot, if one is present on either ship.

Either of the Sen.Off.Deck if he feels the situation is heading out of control due to bad weather, bad manoeuvring, or for any other reason.

The Sen.Off.Deck of the manoeuvring or offtake vessel.

Which of the following detectors would you choose for measuring the torque of a steel shaft?

Pyrometer

Strain gauge

Ultrasonic gauge

Synchro

One or more pressure/vacuum-breaking devices shall be provided on the vent mains to prevent the cargo tanks from being subject to a positive and negative pressure. What is the normal pre-set point for negative pressure?

A negative pressure in excess of 500 mm water gauge.

A negative pressure in excess of 200 mm water gauge.

Depending on the test pressure of the cargo tank.

A negative pressure in excess of 700 mm water gauge.

A vessel with a large transverse GM will have which of the following rolling periods?

Fast abrupt rolling period to small angles.

A moderately comfortable period with medium angles of heel.

Slow period of roll either side of an angle of loll.

Very slow and to large angles of heel.

What would it mean if a dangerous cargo was declared as Class 3 (sub risk Class 6)?

The main hazards are flammability and toxicity

The main hazard is toxicity and the secondary hazard flammability

The main hazard is flammability and the secondary hazard toxicity

The secondary hazards are flammability and toxicity

What is the minimum value of the GM under the international Load Line Rules?

0,25 m.

2,0 m.

1,5 m.

0,15 m.

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

5% extra

50% extra

25% extra

10% extra

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

Air draught is given by B on the figure

Air draught is given by A on the figure

Air draught is given by D on the figure

Air draught is given by C on the figure

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

Medium Crude.

Paraffinic Crude.

Reconstituted Crude.

Sweet Crude.

What is the symbol for a THYRISTOR?

Figure 4.

Figure 3:

Figure 1.

Figure 2.

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.

During the hose testing of hatch covers what is the maximum distance from which a jet of water must be directed onto each part of every hatch cover joint?

1.5m

1.8m

2.0m

0.5m

You have been tank-cleaning at sea and are about to arrive in port and go alongside the terminal for loading several grades of chemicals. Many of the lines (headers) have been open for drying and inspection, but will not be required for this particular operation. What should you do with them?

Fit and secure a blank flange to every line that is not required.

Leave the blank flanges off, but hang a label over each line that will not be required, stating "not to be used this port".

Leave the lines open, but tie-off (or otherwise secure) the manifold valves so that they can not be operated by accident.

Leave the lines open to prevent condensation building up inside.

Following maintenance work on an air compressor the engine room rating is asked to put the tools away. It is noticed that an allen key is missing from the set. What action should be taken?

Get another one from the store to make up a full set again.

Assume it has fallen in the bilge and look for it when the bilges have been pumped.

Make a note in the log book so the other engine room staff know it is missing.

Inform the engineer in case it has been left inside the compressor when it was closed up.

Which of these statements about drug smuggling is true?

"The preventative measures you incorporate into your ship’s security plan should be exhaustive, regardless of the level of threat identified by your ship’s security assessment."

The risks to ships are not restricted to specific areas or trading routes.

Drugs are difficult to conceal onboard a ship.

"Drug smuggling is only a problem in certain ports, so only ships sailing in those ports need to implement preventative measures."

What does the Chief Mate want the OS to do?

He wants the OS to turn the switch to start, just to be sure

He wants the OS to show him the switch identical to the one the 2nd Mate showed him

He wants the OS to show him where the switch that changes between automatic, manual, and emergency steering is

He wants the OS to show him how to handle the wheel

What causes cargo sweat on a Bulk Carrier?

Cold and moist air introduced into a warm cargo hold

Warm, dry air being introduced into the cargo hold

Warm air introduced into a cargo hold

Warm and moist air introduced into a cooler cargo hold

From the options given, select the type of cleaner that is most suitable for washing down a refrigerated cargo space.

A cleaner which contains a powerful bleaching agent.

A cleaner which has a fresh smell such as the smell of pine.

A cleaner containing a powder scouring agent.

An odourless cleaner.

If a vessel’s Moment to Change Trim by one Centimeter (MCTC) is 196 in saltwater, what would be her MCTC is water of density 1.015 T/m3?

197.93

194.087

203.90

196

A positive displacement, rotary type, volumetric flow meter reads low with an error reading of 1% when used to measure flow of heavy oil and 2.5% when used to measure the flow of diesel oil. From the options given select the most likely cause of this difference in error?

The lower mass of diesel oil results in a lower reading.

The higher viscosity of the heavy oil is slowing down the rotary element in the meter.

The low lubricity of the diesel oil is increasing the friction in the rotating element and slowing the rotor down.

The meter is worn internally.

Which of these statements is incorrect with regard to Ro-Ro cargoes?

Stowage on deck is recommended when ventilation for a particular package is not required

Stowage on deck is recommended when constant supervision is required

Stowage on deck is recommended when there is a substantial risk of the formation of explosive gas mixtures

Stowage on deck is recommended when access to a particular package is required

Where is the normal position of the "Pivot Point" of the vessel when going ahead?

1/4 of vessel's length from the stern

1/3 of the vessel's length from the bow.

Amidships

Normally varies dependant on the speed ahead

To evaluate the condition of a heat exchanger the following measurements should be recorded:

In and outlet temperatures on one media

In and outlet temperatures, and flow rates for both media

In and outlet temperatures for both media

Pressure drop

25% extra

10% extra

50% extra

5% extra

What gives the condenser pressure in a 1 stage direct cooling plant?

One, two and three stage piston compressors.

One, two and three stage screw compressors.

Piston, screw and centrifugal type compressors.

Oil free screw and centrifugal type compressors.

Which of the following cargoes would normally require surrounding empty cargo tanks, void spaces and ballast tanks to be inerted prior to loading and maintained in that condition while the cargo was on board?

Propylene Glycol.

Propionic Anhydride.

Propylbenzene.

Propylene Oxide.

Pitting corrosion is found around the steam drum water line of a high pressure steam boiler. From the options given, select the one most likely to cause this condition.

Dissolved oxygen levels are too high.

Seawater leakage from the condenser.

Total dissolved solids levels are too high.

Excess hydrazine dosage to the feed water system.

Some large slow speed diesel engines have jack bolt arrangements for retaining the main bearing top keep in place rather than the more conventional stud bolts. How does this arrangement affect the maintenance and checking procedures for the tie rods on the engine?

It has no effect since the tie rods and jacking bolts have completely separate functions.

The tie rods should be fully tensioned before the jacking bolts are loaded to avoid overload of the bearing caps and frame structure.

The tie rods and jacking bolts must be tightened simultaneously to avoid excess load on either component.

The jacking bolts should be fully loaded before the tie rods are tensioned to avoid excess loads on the tie rods.

What does the abbreviation "SBT" stand for in the context of the construction and layout of an oil tanker?

Segregated Ballast Tank

Specified Ballast Tank

Strengthened Ballast tank

Single Barrier Tank

The charge air pressure supplied to a diesel engine, which is normally 2.0 bar, is reduced to 1.5 bar . What will be the likely effect on the engine operation?

The performance of the engine will be reduced noticeably.

The turbochargers cooling water flow will increase.

The performance of the engine will be similar to normal conditions.

The cylinder cooling water flow will increase.

What distinguishes vapour connections (headers) from liquid cargo connections on a ship's manifold?

Liquid and cargo connections actually appear the same, but the ship's personnel always attach a small board to the applicable flange, identifying the cargo to be loaded and indicating whether it is for the liquid or vapour hose.

Vapour connections are painted yellow with green end bands, are marked with the words "not for liquid" and have a small hole capable of receiving a stud on the flange face at the six o'clock position.

Liquid connections are always marked with the corresponding tank number, while vapour connections are marked with the letter "V".

Vapour connections are painted yellow with red end bands, are marked with the word "vapour" (or "vapor") and have a small stud located on the flange face at the twelve o'clock position.

On the figure there are four (4) possible definitions of the term "AFT" shown. Which one is the correct one?

Aft is defined as B on the figure

Aft is defined as D on the figure

Aft is defined as C on the figure

Aft is defined as A on the figure

A vessel is carrying a refrigerated cargo under controlled atmosphere (CA). From the options given, select the most appropriate degree of opening of the air change vents when operating CA.

50%

25%

100%

Which of these foodstuffs contributes to lowering the cholesterol content in the blood?

Cheese

Fatty fish

Pork

Eggs

Once a vessel has discharged a fruit cargo it is important to check that all cargo residues have been removed, particularly if the next cargo is to be a sensitive fruit cargo. From the options given, select the most important reason for this requirement.

The cargo residue is unsightly.

The cargo residue can produce large amounts of ethylene.

The cargo residue may become smelly.

The cargo residue may attract the attention of the loading surveyor.

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

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

Shall bi liable to fines.

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

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

When talking about the properties of an oil cargo, what does "flammable" mean?

When it catches fire, flames may be seen, as well as smoke.

That it does not need an external ignition source to cause it to burn. It will do so by itself.

That it is not capable of burning.

That it is capable of being ignited and of burning.

What type of lubricating oil is generally used for for cylinder lubrication on a large, 2-stroke diesel, main propulsion engine operating on heavy fuel oil?

Mineral based oil with high alkalinity and other additives.

The same oil as the main lubricating oil system

Straight mineral oil.

Synthetic oil.

Liquefied gas carriers and terminals must each have an Emergency Shut-Down (ESD) system. In the event of an emergency during loading which is normally the preferred order of operating these emergency shut down systems?

Operate both ESD systems together, simultaneously.

Operate the ship ESD system first.

Operate the terminal ESD system first.

There is no preferred order of operation for these systems.

Loading of a palletised cargo onto a conventional reefer vessel is almost complete. The final pallets are to be loaded into the hatch square pre-slung. Which of the options is the main reason for loading these final pallets pre-slung?

To allow the stevedores at the loading port to complete operations quickly.

To allow a quick start to cargo discharge without damaging any of the cargo.

So that the stevedores at the discharge port know which pallets to unload first.

To allow a tight stow at the completion of loading in the hatch square.

The effective stability of a tug, when assisting a vessel to manoeuvre, can be decreased by hydrodynamic interaction with the ship it is assisting. Where is the most dangerous position of the tug relative to the ship, for this adverse affect to be found?

The most dangerous position is when the tug is alongside the amidships section of the larger vessel.

The most dangerous position is where the tug has made fast the towing spring and is then moving ahead of the larger vessel.

The most dangerous position is where the tug approaches the stern of the larger vessel and enters into its associated positive pressure field.

The most dangerous position is where the tug approaches the bow rounding the forward shoulder of the larger vessel.

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

Water and acid mixed together in certain concentrations can result in the development of dangerously high heat levels and aggressive reactions with steel surfaces. Which of the following is a general description of the approach to be adopted when cleaning a cargo tank after the discharge of Sulphuric Acid?

It is important that, once cleaning commences, large quantities of washing water can be delivered as quickly as possible, so that the acid is repaidly diluted.

It is critical that, as cleaning commences, washing water is introduced in a controlled manner, allowing time for the acid and water in the sump to mix slowly and thoroughly before the rest of the tank surfaces are flushed.

A mixture of hot fresh water and Sodium Hydroxide solution (50/50) should be prepared beforehand and then circulated around the tank, rapidly neutralising any remaining acid.

Any acid remaining in the sump should first be ejected and the tank ventilated for a minimum of 30 minutes before the introduction of any water, ensuring that there are insufficient acid residues to create any dangerous reaction.

A standard outside micrometer requires regular maintenance, including calibration, in order to ensure accuracy of measurement. How is the accuracy of this type of instrument normally checked? Select the answer from the options given.

By checking the distance between the micrometer anvil and spindle with an inside micrometer.

By measuring a standard gauge block or rod at a common temperature.

By checking the distance between micrometer anvil and spindle with an inside vernier gauge.

By trying a go/no go gauge between the micrometer anvil and spindle at maximum opening at a common temperature.

What is Maximum Securing Load?

The load capacity of a device used to secure cargo on board

The combined safe working loads of various devices used to secure an items of cargo on board

The combined capacity of several devices used to secure an item of cargo on board

The safe working load of a device used to secure cargo on board

This vessel is sighted ahead and slightly to port. What is her situation? What will you do?

This vessel is aground. I will navigate with extreme caution given the nature of the hazard.

This is a vessel not under command at anchor.

This is a vessel engaged in fishing vessel, with her nets fast on an obstruction. I will keep out of the way by rule 18 of the International Collision Regulations.

This is a vessel aground. She appears to have been headed to starboard of my track and I will therefore alter course to port, passing under her stern.

The ship is en route. When may passengers visit the bridge?

Passengers are not allowed to visit the bridge while the ship is en route

When the weather is nice and the sea is calm

During daytime if the traffic is smooth

Whenever they want

A resistor has three red bands. What is the resistance?

220 ohm

22 ohm

2200 ohm

222 ohm

In installations of INTRINSICALLY SAFE equipment it is required that all cabling should be separated from non-intrinsically safe equipment, and (where colour coding is relied upon) to be of a special colour. What colour is that?

Orange

Green/yellow

Red

Blue

During loading of palletised, chilled, perishable goods it starts to rain heavily in the port area. Some of the cargo pallets have been placed on the quay ready for loading. Select, from the options given, the best course of action to be taken to minimise any damage to the cargo.

Return the cargo to the cooling sheds until the rain ceases.

Shift the cargo to a position where there is overhead shelter.

Shift the cargo onto the deck and cover with a waterproof sheet.

Cover the cargo with a waterproof sheet.

Hindus are not permitted by their religious beliefs to eat one particular type of meat. Which one?

Lamb

Pork

Chicken

Beef

On a traditional crude oil carrier, it is possible to arrange the valves in the bottom of a pumproom so that cargo flows from one bottom line to another. When more than one grade of cargo is carried, what is the operational safeguard requirement regarding these valves?

That two valves must be closed on each line or a 'spacer' removed to ensure no direct connection between tanks.

That there is two valve segregation.

That one valve segregation is maintained at all times.

There is no so special requirement.

Many gas carriers are designed to carry liquefied petroleum gas (LPG). How is LPG defined in the IMO Gas Codes?

LPG is defined as butane and ethane or a mixture of both.

LPG is defined as propane and butane or a mixture of both.

LPG is defined as propane and ethane or a mixture of both.

LPG is defined as propane and methane or a mixture of both.

Is it recommended to adjust the spring tension on the fuel valves during operation to achieve:

Exhaust temperatures in line (equal temperatures)

To improve the fuel atomizing.

Equal cylinder pressures

Not recommended at all

The majority of large slow speed diesel engines used for main propulsion purposes are direct drive to a fixed pitch propeller? What is the main reason for this arrangement?

The amount of power that needs to be transmitted would overload a gearbox.

A fixed pitch propeller can operate with reasonable efficiency at the same sort of speed as the engine.

There is usually only one engine sin this arrangement and so clutches are not required.

Controllable pitch propellers cannot be used with large slow speed diesel engines which can be reversed.

During a stay in port, what shall always be ready at the gangway?

Air breathing apparatus.

Life buoy with line.

Survival suit.

Fireman’s outfit.

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 associated with carrying logs on General Cargo vessels?

Moisture absorption in the cargo holds

Increased levels of oxygen in the cargo holds

Spontaneous combustion

Oxygen depletion in the cargo holds

What is the requirement with respect to pressure/vacuum valves on cargo tanks?

Three valves.

There is no such requirement.

Two valves.

One valve.

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

What does the Captain want to have done?

He wants the Chief Officer to organise the repairs of the lifeboat motor

He wants the Chief Officer to organise a lifeboat drill

He wants the Chief Officer to check the lifeboat motor

He wants the Chief Officer to fix the lifeboat if there is something wrong with it

When a fire breaks out in the accomodation, cargo holds or on deck, who is in charge of the fire fighting operations?

The first person arriving at the scene

The officer on duty

The Chief Officer

The Captain

Having boarded the liferaft, how do you release the painter?

Cut it with the axe provided

Cut it with the safety knife stowed on the exterior of the canopy close to the painter attachment point

Let go the quick release toggle

Wait for it to break as it is provided with a weak link

In case of fire in the switch board, what kind of extinguisant to be preferred?

CO2

Powder

Water spray

Water

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