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

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

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Der Test besteht aus zufälligen Fragen zu einem ausgewählten Thema.

Frage 1 aus 90

The vessel is involved in a rescue operation for a Man Overboard and is to launch a lifeboat. What additional items would be very useful to take onboard the lifeboat to assist in the operation?

Extra Painter

Extra food

VHF or some means of communication

Blankets

When a ship is steaming along a course line, what is the importance of determining the set and rate of drift due to wind and current?

All of the suggested answers

To appreciate the possible extent of drift and dangers in the event of engine failure

To determine the time required to reach the next alteration of course point.

To determine the correction required to the course steered to maintain the planned passage.

When ship to ship operations are being carried out at anchor, anchor watch duties are as follows irrespective of which ships anchor is down:

Anchor watch responsibility rests with the offtake vessel.

Anchor watch responsibility rests with the discharging vessel (which, we shall assume, has its anchor down).

Anchor watch responsibility rests with both vessels, each with its own watch.

Anchor watch not kept as duty officer will be on deck.

In describing an oil cargo, what is its "pour point"?

The lowest temperature at which a gas converts back to liquid

The lowest temperature at which it will remain fluid

The temperature as recorded during the taking of cargo samples

The temperature necessary for a cargo to load from shore by gravity alone

What is the correct initial firing procedure to be adopted when bringing a main steam boiler up to pressure from cold condition?

Start the firing on maximum rate and raise the pressure in as short a period as possible, to save energy.

Start the firing on minimum rate and alternate with maximum rate continuously firing until the boiler is up to pressure.

Start the firing on minimum rate and continuously fire until boiler is up to pressure.

Start with intermittent firing, using small firing periods and long intervals gradually building up to longer firing periods and shorter intervals until steam pressure starts to rise.

On a Container vessel, where should a mid-bay guide be positioned?

On the tank top at the ends of 40' container bays

On the tank top mid-way in 40' guides to prevent transverse movement of 20' containers.

At the base of cell guides

Between 20' container bays on deck

In a large, 2 stroke, main diesel engine cylinder lubricating oil is supplied directly through lubrication points cut into the cylinder liner. At what point during the cycle should the supply normally occur.

At mid-stroke of the piston.

As the piston rings pass the lubrication points.

At Bottom Dead Centre.

At Top Dead Centre.

What should be clearly marked on the cowl ventilators of a General Cargo Vessel?

A serial number

The date when last painted

The Open and Closed positions with the last date of testing

The last internal inspection date

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

Your vessel is progressing within a Traffic Separation Scheme and receives a navigational warning of another vessel progressing the wrong way within the scheme. What actions should be taken on the bridge, if any?

Use the Arpa for early identification of all other ship movements within the traffic lane and give rogue vessel a wide berth

Move out of the traffic lane towards the coast.

Slow down your vessel and proceed with caution, posting extra lookouts.

Take no actions but proceed with extra caution.

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

In a purifier assuming the separating temperature is correct, what is probably wrong if processed oil contains water

Back pressure is too high

Gravity disc is too small. Flow rate is too high

Gravity disc is too small

Gravity disc is too large

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

Before leaving the machinery spaces of a UMS vessel whose engine room is protected by a fixed CO2 installation, should the duty engineer:

Ensure all doors are in closed position.

Lock all of the entry exit doors to prevent entry by unauthorised personnel.

Hook the main entry/exit doors in the open position to speed up entry in the event of an alarm.

Leave the doors in whatever position they are in.

A deck patrol notices that a cargo space carrying refrigerated cargo under controlled atmosphere (CA) is not padlocked shut. Select, from the options given, the main reason why such a space should be kept locked.

It is a requirement of the ship security plan that such spaces should be locked.

To prevent unauthorised entry into the space because of the hazard risk due to low temperature in the space.

To prevent unauthorised entry into the space because of the hazard risk due to the low oxygen content of the controlled atmosphere in the space.

To minimise the occurrence of pilferage of a valuable cargo.

Which of the following hazard risks generally apply to the carriage and handling of LNG and its vapours?

Flammable, Toxic and Frostbite

Flammable, Toxic and Corrosive.

Flammable, Corrosive and Frostbite.

Flammable, Asphyxia and Frostbite

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.

Who is responsible for maintaining the vessel's structural strenght?

The Shipping Company and the Classification Society

The Shipyard

The Master

The Flag State Administration

An airway should be used when

The patient is breathing on his own but is doing so with great difficulty

The patient has stopped breathing

Patient has injury in the mouth

The patient is unconscious

Why should passenger ships be subdivided into main vertical zones?

To comply with company specific standards defined in the Safety Management System

To comply with passenger safety, cargo safety and hull integrity training defined in the STCW convention

To comply with specific provisions for fire integrity defined in SOLAS and to ensure safety of passengers and crew in case of a fire

To comply with specific provisions for fire integrity defined by the Classification Society

Some equipment may be marked with the following symbol: What does it mean?

Internally explosion proof.

Not safe in gas dangerous area.

Explosion proof.

Intrinsically safe.

Two identical medium speed engines are connected through clutches and a reduction gearbox to a single controllable pitch propeller. It is noted during normal operation that the load sharing between the engines is uneven with one engine taking a greater proportion of the load as the total load increases even though they are equally loaded at low load. Select from the options given the most likely cause of this problem.

One of the engines is running faster than the other at high loads.

The fuel filters in the supply line for one of the engines are blocked

The governor droop settings are incorrectly set and are not matched.

The clutch on one engine is slipping.

How to distinguish a LNG carrier with prismatic tanks from an ordinary oil tanker?

The tanks of an LNG carrier protruding above the main deck.

The freeboard of an LNG carrier is significantly greater.

By its distinctive profile and much larger size.

By consulting the Gas Code.

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.

Which is the "FORWARD SPRING", in the figure?

The Forward Spring is indicated by C, in the figure

The Forward Spring is indicated by D, in the figure

The Forward Spring is indicated by A, in the figure

The Forward Spring is indicated by B, in the figure

The majority of conversions adopted under the auspices of IMO fall into which of the three main categories:

don't know

Maritime Safety, Prevention of Marine pollution, Liability and compensation

Maritime Safety, STCW, Maritime Security

Safety, Terrorism, ILO

With reference to the installation of pressure gauges for steam systems. Complete the following statement from the options given. To protect a bourdon tube type pressure gauge which is to be fitted to a steam line it should ….

..be fitted directly to the steam pipe.

..be fitted to the steam pipe using a flexible hose.

..be fitted with a siphon loop between it and the steam pipe.

..have its casing filled with water.

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

How is ‘Allowable Use Strength’ (AUS) calculated, for applying cargo lashings in the transverse direction?

Transverse accelerations, taken from the CSS Code, multiplied by the vessel’s natural roll period

Vessel’s moulded breadth divided by a factor of safety, taken from the CSM, multiplied by weight of cargo item

Width of cargo hold divided by a factor of safety, taken from the Cargo Securing Manual (CSM), multiplied by weight of cargo item

Transverse accelerations, taken from the Cargo Stowage and Security (CSS) Code, divided by 7 multiplied by weight of cargo item

Why shall you never pour water into hot fat?

The fat will stiffen immediately and need reheating.

The water will explode into steam causing hot fat to be thrown far away thus possibly causing severe burns or fire.

The water will turn into steam and cause the fat to explode.

The fat will not be edible any more.

On a General Cargo Vessel the Tonnes per Centimetre (TPC) of a vessel is 30; the present mean draught of the vessel is 6.90 m and the maximum summer load draught is 7.00m; Calculate the amount of cargo that can still be loaded?

The amount of cargo that can still be loaded is 300 tonnes

The amount of cargo that can still be loaded is 3000 tonnes

The amount of cargo that can still be loaded is 30 tonnes

The amount of cargo that can still be loaded is 3 tonnes

How many lifejackets are required in a passenger cabin?

At least 2

Same number as beds in the cabin

Non, they will be handed out at the muster station

Twice the number of beds in the cabin

Some charters will require a reefer vessel to carry a general cargo, for example paper rolls for the manufacture of fruit cartons, on the return, 'empty' leg of a voyage. Select from the options given, the main problem associated with carrying paper rolls on a reefer vessel in this way that the deck officers should be aware of.

Paper rolls must be handled with care to avoid damage to the ends of the rolls.

Paper rolls are sensitive to wetting.

The paper rolls are heavy and this may result in overload of the decks.

The hold insulation and vent trunking can be damaged if the paper rolls are improperly secured.

A lubricating oil having a high viscosity index number would normally be used in which of the following situations?

When the machinery operates at a very high temperature.

When the machinery operates at a high load.

When the machinery operates at a very low temperature.

When the machinery operates over a wide temperature range.

To whom should you report when the bow port or stern ramp is closed and secured?

The Safety Officer

The Master

The Chief Engineer

The bridge/ Officer on watch

What type of damage does a cargo of steel coils sustain when loaded on a General Cargo ship?

Chemical reactions between the steel banding and outer envelope

Bending

Tearing

Crushing and distortion

How many separate means of escape are provided from each fire zone above the bulkhead deck?

Don't know

Two

Three

One

Why are a greater number of lashings required to secure cargo forward on deck compared with amidships under deck of a General Cargo Vessel?

Because the dynamic stresses on the lashing are much greater

Because the roll period is greater forward

Because heavier cargo is stowed forward

Because the dynamic stresses on the lashing are much less

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.

What name is given to all the knives, forks, spoons, etc?

Sutlery.

Crockery.

Cutlery.

Butlery.

How many crews are required to be trained and regularly drilled in all aspects of fast rescue boats in various conditions, including righting after capsizing?

At least 3

At least 2

A range of dangerous goods are to be loaded on a General Cargo Vessel; the segregation requirements of the cargo are given in which publication?

The Cargo Securing manual

The IMO Bulk cargo Code

The IMO International Maritime Dangerous Goods Code

IMO SOLAS Handbook

A ship is navigating in the Caribbean in August when it receives the warning of a Hurricane. To determine the centre of the storm the Master uses "Buys Ballot's Law" and faces the wind. On what side of the Master would the low pressure area be located?

This is not a suitable method to use with a Hurricane.

On the left side

On the right side

Straight ahead

Which of these statements is correct?

Under the Hague and Hague-Visby rules a shipowner must exercise due diligence to make the vessel seaworthy

Under the Hague rules there is an obligation to make the vessel seaworthy

A vessel may be seaworthy even though she may not be cargo worthy

On liner routes cargoes must always be lashed in a standard manner irrespective of season

The IMO IGC code details the requirements for cargo piping systems on gas carriers? Which one of the options given is part of these requirements?

Cargo pipelines must resist at least 1.25 times maximum vapour pressure.

Cargo pipelines must resist horizontal displacement from cargo surge pressure.

All cargo pipelines must be made of high tensile steel.

Cargo pipelines are not allowed beneath deck level on gas carriers.

Indicate the correct name for the part marked on the sketch:

Crankshaft

Piston rod

Connecting rod

Push rod

"…a ship… …intended to transport products with appreciably severe environmental and safety hazards which require significant preventative measures to preclude escape of such cargo. Usually the ship is of double-hull construction, with a variety of tank sizes / capacities." What is this the definition of?

A chemical tanker for the purposes of the 1996 IMO directive MEPC/2.12 circ. on "Mandatory Reporting Requirements for Ships Carrying Dangerous or Polluting Goods".

A type I chemical tanker as per the IBC Code.

A type II chemical tanker, as per the IBC Code.

A parcel chemical tanker as per the IACS Construction Regulations.

What is done at a Quadrennial Thorough Survey?

Derricks are tested and parts of derricks thoroughly examined

Deck cranes are tested and their parts thoroughly examined

Deck cranes are tested

Derricks are tested

What kinds of checks must be carried out on slings, wires and other items of lifting equipment before they are used in routine operations?

They must be tested under load, to ensure they can bear the planned weight.

They must be visually inspected to ensure that the ID and SWL marks are clearly legible.

They do not need to be checked. They are checked under the vessel's planned maintenance system every 12 months.

They must be visually inspected and ascertained, so far as is possible, as being in good working order and fit for purpose.

What could be the reason for the magnetic compass to swing through large angles when the ship is rolling in a seaway?

The error due to deviation is large for that ships heading

The heeling error magnets are upside down and/or not in the correct position.

The Coefficient B determined by the Compass Corrector at the last dry-dock was not correctly calculated.

The induced magnetism from the earth's magnetic field is very strong in that area

On a RoRo vessel, what is important with regard to a loading ramp resting on a jetty?

The position of mats between the ramp flap and jetty must be maintained at all times

Visitors must not be allowed access to the vessel via the ramp

The ramp's position must be maintained

It must not foul the ship's mooring ropes

When setting the tappet clearance (rocker arm clearance) on cylinder cover valves it is important that the engine is turned to the correct position. Select, from the options given, the engine correct position for this procedure.

Each cylinder in turn should be at top dead centre position when setting the valve clearances for that cylinder.

Number one cylinder should be at top dead centre position for setting the clearance for all of the valves on the engine.

The engine should be positioned so that the cam follower for the valve for which the clearance is being set is on the cam base circle.

The engine should be positioned so that the cam follower for the valve for which the clearance is being set is on the cam peak.

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.

When describing Crude Oil Washing on an oil tanker, what name is given to areas within a cargo tank that are not directly impinged, or hit by the stream from tank washing machines?

Shadow areas

Protected areas

Deflected areas

Hidden areas

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

The panels should peak

The panels should fold

The hatch cover panels should rack backwards

The hatch cover panels should rack backwards releasing the cleat wedges

What is the 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.

Due to the very low carriage temperatures for LNG the thermal conductivity, k value, is an important property of the insulation material used in cargo containment systems. For a given rate of heat leakage across the insulation, which of the following statements is true?

The higher the k value the thicker the insulation needs to be.

The rate of heat leakage is unaffected by the thickness of the insulation.

The k value depends on the thickness of the insulation material.

The higher the k value the thinner the insulation needs to be.

What temperature do we calculate on when using the ASTM-IP tables?

We calculate the liquid weight at actual temperature.

We calculate the liquid weight at +25 C.

We calculate the liquid weigh at ambient temperature.

We calculate the liquid weight at +15 C.

What is the purpose of a cargo vaporiser as fitted to LNG carries?

To check the membranes of the cargo containment system for leakage at regular intervals.

To produce the vapour to displace the inert gas from cargo tanks prior to cooling down and loading and for maintaining the pressure in the cargo tank during discharge.

To produce the nitrogen for removing vapour from the cargo tanks ready for gas freeing.

To generate the boil-off gas for use as fuel in the vessels propulsion plant.

Is it required to have supplementary emergency lighting on board passenger ships?

Yes, all passenger public spaces and alleyways shall be provided with supplementary electric lighting

No, reflective marking indicates the escape routes

No, passengers should bring their own flashlights

No, portable battery operated lamps shall be provided in alleyways and public spaces

Under international regulations what is required during bulk cargo operations?

Ships’ personnel must continuously monitor cargo operations

The Supercargo must continuously monitor cargo operations

Ships’ personnel must monitor cargo operations as and when required to do so

The terminal representative must continuously monitor cargo operations

What is the difference between a "VLCC" and a "ULCC"?

Tankers between 125,000 tonnes and 250,000 tonnes deadweight are classified as "VLCC"s while those above 250,000 tonnes are classified as "ULCC"s.

Tankers between 200,000 and 300,000 tonnes deadweight are classified as "VLCC"s while those above 300,000 tonnes are classified as "ULCC"s.

Tankers with a loaded draught of between 17.8 and 23.1 metres are classified as "ULCC"s, while those with a draught in excess of 23 metres are classified as "ULCC"s.

Large tankers that are able to pass through the Suez Canal are classified as "VLCC"s. Those which are too deep to transit the Canal are classified as "ULCC"s.

What type of cargo shall always be secured?

The driver must ask the crew to secure the vehicle and its cargo

Freight vehicles carrying dangerous goods and adjacent vehicles should always be secured.

No cargo or vehicles have to be secured if the weather conditions are favourable.

Tank lorries should always be secured.

Why should a surveyor be in attendance when discharging steel rebars from a General Cargo Vessel?

In case cargo is found damaged during cargo discharge operations

Because individual rebars will be inter-twined with those below them and will therefore be discharged in damaged condition

Because of charterers? requirements

Because it is a P. & I. Club requirement

What is the name given to the special list of cargo loaded on board a ship that needs to be prepared for reporting and other administrative purposes?

Manifest.

Stowage Plan.

Tally list.

Load Summary.

Why should cargo holds be swept completely prior to washing on a bulk carrier?

Because it is a requirement under MARPOL 73/78

So that cargo residues will not be pumped overboard

Because it is part of a company's safety management system

So that cargo residues will not clog the bilge lines and associated suctions and valves

Refrigerated cargo spaces are fitted with temperature sensors and in some cases carbon dioxide sensors. From the options given select the one which best completes the following statement. "Monitoring the carbon dioxide content in a cargo space loaded with fruit can be useful because…

… low levels indicate that there are insufficient numbers of air changes."

… increasing levels indicate that the fruit may be starting to ripen."

… its presence indicates that the fruit is ripe."

… its presence indicates that the fruit is still not ripe."

What is the time limit for abandonment of passenger ships?

15 minutes from the time the abandon ship signal is given

There is no time limit

2 hours from the time the abandon ship signal is given

30 minutes from the time the abandon ship signal is given

How does the maximum oil film pressure in a white metal journal bearing operating under full fluid film conditions compare with the pressure of the lubricating oil supply system?

The pressure is greater than the pressure in the lubricating system and varies with the journal load.

The pressure is the same as the pressure in the lubricating system regardless of the journal load.

The pressure is less than the pressure in the lubricating system and varies with the journal load.

The pressure is greater than the pressure in the lubrication and is constant regardless of the journal load..

When a submerged centrifugal cargo pump is being run at too high a speed during discharge of a viscous cargo, the pump may start racing, causing a heat build-up around the suction, possible localised solidification of the cargo and consequent damage to the pump. What term is applied to this problem?

Synthesis.

Cavitation.

Aggregation.

Gravitation.

What do you understand by the term ‘Separated From’, with regard to the stowage of dangerous goods on deck?

Separation by a distance of at least 3m vertically

Separation by a distance of at least 3m horizontally

Separation by a distance of at least 6m horizontally

Separated from the accommodation by at least one cargo space

When may watertight doors in watertight bulkheads in tweendeck cargo spaces be open on board passenger ships?

Daytime only

At any time if watched by an authorized person

In ports only

During cargo handling only

How would you report containers with dangerous goods lost overboard?

"My vessel has lost containers overboard"

"My vessel has lost containers with dangerous goods of IMDG Class….in position…."

"My vessel has lost containers with dangerous goods of IMDG Class…."

"My vessel has lost containers in position…."

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

If properly secured what benefits do car carriers have over other ship types regarding seaworthiness?

They are not easily damaged in heavy weather

They can pitch to very large angles without taking in water viathe ramp doors

They can roll to very large angles without taking in water

Their large reserve buoyancy prevents capsizing

For what purpose do we have booster pumps on the cargo discharge line?

To increase discharge rate.

To reduce the flow and pressure to shore line.

To increase discharge pressure and reduce the cargo temperature.

To increase discharge discharge line pressure above shore back pressure.

What advantages do you see by conducting passenger muster’s. Drill’s are mandatory for international voyage’s.

The passengers get to know the way around the ship.

The Passengers get familiar with lifejacket and location of muster station

Giving the company a good image for the public, and the crew get training.

The passengers get familiar with emergency procedures, life jackets, musterstation. And the crew get training in growd handling.

Some liquefied gas carriers are fitted with nitrogen generating equipment, often of the membrane module design. What would be the expected purity of the nitrogen produced by such equipment?

87 to 89% pure nitrogen.

90 to 92% pure nitrogen.

100% pure nitrogen.

95 to 97% pure nitrogen.

What should be done if the surface of the loading ramp is oily?

Immediately clean the oil-affected area(s)

Allow cargo operations to continue in the usual manner

Stop cargo operations and inform the master

Wash the oil-affected area(s) using a fire hose

What would be the effect of a faulty steam trap on a fuel oil heater causing condensate to build up in the heater exchanger?

An increase in fuel oil temperature.

Low water level in the boiler.

Reduced heating capacity of the heater.

Excess pressure on the shell of the heat exchanger.

What is the best method for ensuring that the cylinder powers of a high speed diesel engine, fitted with a monoblock multi-cylinder fuel pump, are correctly balanced?

Measure the maximum pressure of each cylinder to check that they are equal.

Take a set of indicator cards using a mechanical indicator and calculate the cylinder powers.

Check the exhaust temperatures on each cylinder to see if they are equal.

Have the fuel pump phased and calibrated in a test workshop.

How many categories of Seed Cake are there in the Code of Safe Practice for Solid Bulk Cargoes (BC Code)?

With regard to raised deck sockets what must be ensured prior to commencing cargo operations?

They must be ready to secure the turnbuckles

They must be free of internal debris

They must be well painted

They must be clean

During inspection of the fan spaces an access hatch between the delivery and return side of the fan space is inadvertently left open. What would be the most likely consequence of this situaqtion?

Chilled air would short circuit from the return to the delivery air side.

The delivery air side would become overpressurised.

The fan speed would be affected.

Air would short circuit from the delivery to the return air side.

Most medium and high speed diesel engines operate with mean piston speeds greater than those for larger slow speed engines. What is the main design feature of these engines which allows the higher mean piston speeds to be achieved without causing unwanted failures?

Using composite pistons featuring steel crowns and alloy skirts

Fitting bronze rubbing bands to the piston skirts.

Using directly cooled piston crowns with long piston skirts.

Using cast iron single piece piston crowns with a short piston skirt.

Where is the "FORECASTLE", in the figure?

The Forecastle is D, in the figure

The Forecastle is B, in the figure

The Forecastle is C, in the figure

The Forecastle is A, in the figure

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

To counteract the effects of fuel leaking into the crankcase.

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

To increase the load carrying capacity of the oil.

To neutralise the acids formed during combustion.

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

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

Crack open the manual bypass valve for the control valve.

Increase the width of the proportional band for the controller.

Reduce the width of the proportional band for the controller.

Having a CO2 alarm during normal working hours, what immediate action should be taken?

Awaiting further order.

Get into the control room.

Get out of the engine room as soon as possible.

Ignore the alarm.

If you detect a fire on board the ship, dependent on the situation, which of the following actions is the first to be taken?

Call the officer on duty.

Try to kill the fire immediately by use of fire-extinguishers or other adequate appliances.

Raise the fire alarm.

Check all nearby compartments for survivors.

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