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

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

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Тест складається із випадкових питань з обраної теми.

Питання 1 з 90

Oily rags and metal turnings

are not a fire hazard at all

are not a fire hazard unless ignited

are a fire hazard because they generate their own oxygen when ignited and are therefore difficult to extinguish

are a fire hazard because they are liable to spontaneous combustion

A received DSC ‘distress alert’ contains the following information: “UNDESIGNATED DISTRESS” Of this distress case:

Don't know

time is unknown

the position is unknown

the nature of distress is unknown

The “squelch” adjustment on the front panel of a mariphone serves to:

adjust the transmitting power of the mariphone

Don't know

adjust the noise threshold of the mariphone receiver

limit the noise of the mariphone transmitter

The “clarifier” has only effect during:

Don't know

Receiving in mode J3E

Receiving in mode H3E

Transmitting in mode H3E

The following information must be given on the SART:

Date of replacement of the battries

The date of replacement of the hydrostatic release unit

The name of the operator

The MMSI number sent

The Urgency Message from a ship is used to notify other traffic of a situation where the ship is not in imminent danger, but where the development of the situation is uncertain and may need assistance in the near future. What is the telephony urgency message like?

RESCUE-RESCUE

SECURITE

PAN-PAN

MAYDAY

When sending an OBS (weather report) with Inmarsat one should use Service Code ‘41’. With this address the weather report will always be transmitted to:

KNMI in Holland

Don't know

The meteorological station connected with the CES used

MET office Washington, this office will take care of further dispatch of the weather reports

How many, minimum lines of positions are needed to decide a position using the decca system?

1line of position.

6 lines of position.

2 lines of position.

8 lines of position.

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

Radar ranges from two radar destinctive headlands

GPS set on WGS84 datum

Bearing and distance from a navigation buoy close to the vessel

Gyro compass bearings from two lighthouses

A bulk cargo is loaded and the cargo stow has been left with an excessive peak height; what could be the result of this situation?

Excessive stresses on transverse bulkheads

Excessive stresses on tank top

Excessive cargo sweat

Damage to hatch covers

What is the function of a sacrificial exchangeable wear plate?

It protects hull plating around the bulbous bow

It protects the hull plating around cell guides

It protects twistlocks against wear down beyond a certain limit

It protects hull plating around the stern frame

What action should be taken if the inert gas plant fails during discharge of a liquefied gas cargo?

Slow down the discharge rate until the IG plant is working again.

Open the atmospheric vents to prevent a vacuum in the cargo tanks.

Stop all cargo operations and inform the terminal.

Open the vapour return line from shore to prevent a vacuum in the cargo tanks.

Every passenger ship is required to carry:

A rescue boat capable of being launched by the assigned crew in 5 minutes

A fast rescue boat capable of being launched when ship is still making headway

A fast rescue boat capable of being lowered when the ship is at anchor

There is no requirement of any rescue boat

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.

A slow speed diesel engine is fitted with a slow turning facility. How would the slow turning normally be set to operate?

It should be manually operated before the normal start sequence following an engine stopped period of more than 10 minutes.

It should automatically operate before the normal start sequence following an engine stopped period of more than 20 to 30 minutes when manoeuvring.

It should automatically operate before every normal start sequence.

It should automatically operate every 20 minutes when the engine is stopped during manoeuvring.

What English name is given to all the plates, cups, saucers, serving dishes, etc?

Cuttlery.

Servery.

Crockery.

Stockery.

In the event of a severe scavenge fire, which of the following is most likely to be seriously damaged?

Piston rod and stuffing box.

Exhaust valve.

Crosshead bearing.

Piston crown.

What type of dynamic forces may cause indent in plating on forecastle deck and main deck in way of pillars inside forecastle?

Forces created by waves on the forecastle

Pressure forces caused by green water on deck

Slamming in way of flat bottom forward of light draught

Impact pressure forces in way of abrupt or flared bow

Generators work on the principle of electromagnetic induction. The internal e.m.f. generated in the phase windings of an a.c. generator is controlled by:

The internal volt drop and the residual magnetism.

The internal volt drop and the load current.

The diesel speed and excitation current.

The diesel speed, magnetising force and load current.

On a RoRo vessel, which of the ships trading certificates details the type and location that dangerous goods are allowed to be stowed onboard

The Cargo Ship Safety construction certificate

Safety Equipment certificate

Certificate of compliance for the carriage of Dangerous goods

International regulations require that a a minimum pressure of Inert Gas is maintained at all times in slop tanks if slops are retained onboard an oil tanker. Which of the following is that minimum requirement?

10 mm/water gauge.

1000 mm/water gauge.

100 mm/water gauge.

750 mm/water gauge.

What is essential with liquefied gas fires

To isolate the fuel source before extinguishing the flames on a gas fire

To cool down the surroundings and extinguish the fire

To immediately start extinguish the flames with water

To evacuate the area

What is the most important treatment concerning a foreign body in the eye?

Wring the eye-lid to prevent blinking

Local anaesthetic

Rinsing of the eye with water

Keep the eye closed

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.

Why is it necessary to control the rate at which iron ore is loaded on a Bulk Carrier?

So that any moisture within the cargo is removed

So that the vessels draughts are kept within the limits imposed by the stability booklet

So that the vessel can manage with de-ballasting operations

So that the athwartship hatch coaming structure is not stressed

What is the purpose of the air distributor in a diesel engine air start system?

To ensure the air consumption from each of the main air receivers is equally distributed.

To ensure that the automatic valve in the air start system opens and closes at the correct time.

To ensure that the start air is distributed equally to the each of the engine cylinders.

To ensure the cylinder air start valves operate in the correct sequence and for the correct period.

Most search patterns consists of:

Vertical tracks

Parallel track covering a rectangular area

Horizontal tracks

Vertical and horizontal tracks

What is the endless piece of rope used extensively for the slinging of cases or bales, called?

Bale sling strop

Rope snotter

Endless sling

Cargo net

When a large motor load suddenly is disconnected from the switchboard and the generator is AVR controlled, what will the ouutput voltage do ?

Remain approximately constant, due to governor action.

Initially rise, then reset to the set value.

Remain approximately constant, due to AVR action.

Initially fall, then reset to the set value.

What is the minimum number of relief valves to be fitted to any cargo tank of greater than 20 cubic metres capacity?

Minimum two pressure relief valves in addition to MARVS.

At least two pressure relief valves.

Minimum one pressure relief valves.

The required number of pressure relief valves is dependent on the pressure.

As well as having temperature sensors located in the cargo holds some reefer vessels are also fitted with ethylene sensors. Why is it useful to have information regarding the ethylene content in a reefer vessel cargo hold when carrying fruit cargoes?

The ethylene content must be maintained to help ripen the fruit during the sea voyage.

Some fruit cargoes are sensitive to ethylene and the quality of the cargo can deteriorate as they may over-ripen.

The ethylene content can be used as a guide as to when air change fans need to run.

The ethylene content is beneficial to perishable cargoes in transit so the content needs to be monitored in case the level falls.

In which of these circumstances can your ship request a DoS?

There is a heightened security risk for your ship and a port facility.

Your ship is conducting activities with a port or ship that is not required to implement an approved security plan.

Your ship is operating at a lower security level than the ship or port it is interfacing with.

Your ship has added a new port to its list of ports of call.

What special equipment can often provide assistance in locating a man overboard and in the water?

AIS

A RACON

A sectored search pattern

A SART

What has the cadet been ordered to do?

The Cadet has been ordered to to dismantle the evaporator

The Cadet has been ordered to test the steering gear

The Cadet has been ordered to help the Bo's'un sandblast the poop deck

The Cadet has been ordered to paint the evaporator using a paint brush

If an engine does not turn when the starting air is applied, what could be the most probable cause?

One or more starting air valve(s) have stuck.

Any of the alternatives.

The starting air distributor does not rotate, the coupling drive defective.

Starting air pressure is too low.

From the options given, choose the one most likely to result in a high exhaust gas temperature in one cylinder of a diesel engine.

The inlet and exhaust valve tappet clearance is incorrect.

Fuel injection valve opening pressure set too high.

Faulty turbo charger.

Clogged nozzle holes in the fuel injection valve.

A standard convention for a 4 deck reefer vessel is to designate the decks A to D from upper to lower deck. Decks A and B common as are C and D with a gas tight seal between B and C. Apples are to be carried in decks C and D with bananas in A and B. Which of the options is the best to avoid the risk of crossover of temperature and respiration between the two cargoes?

Create a pressure differential with a higher pressure in decks A and B.

Create a pressure differential with a higher pressure in decks C and D.

Run the cargo fans intermittently in one of the spaces.

Operate the two spaces at equal pressures as the cargoes are compatible.

When you are calibrating an instrument what is the most common second step in the procedure (consult the manual)

Adjustment of span

justment of Zero-point

Adjustment of range

Check linearity

What does the 1 Engineer want to have done?

He wants the feed water tank inspected

He wants the Fitter to Check the CO 2 equipment

He wants the feed water tank cleaned

He wants the heating coils inspected

In the context of oil tanker operations, what is "clingage"?

Oil residues remaining in the bottom of a cargo tank after tank-cleaning

The resistance to flow in a pipeline during the discharge of an oil cargo

Electrostatically charged bubbles of air and moisture suspended in an oil cargo after loading

Residues remaining on the inside of a pipeline, or on the internal structure of a cargo tank after an oil cargo has been discharged

Where is there a likelihood of inadequate initial design on a bulk carrier?

Around the hatch corners

On cross-deck plating

On the sheer strack

On shell plating

When is it safe for ship's personnel to enter the cargo tank of an LNG carrier to carry out routine maintenance and inspection?

Whenever the tank has been emptied of cargo as long as breathing apparatus is worn.

Only when the tank has been discharged and it is fully inerted.

Only after gas freeing and an atmosphere test shows 21% oxygen content.

Whenever a test of the atmosphere shows a methane content of less than 2% of the lower explosive limit (LEL).

When can semi-automatic twistlocks be used, under the U.S. Occupational Safety and Health Administration (OSHA) regulations?

When used to lock three empty intermodal containers that are to be lifted, one on top of the other

To secure on-deck containers in the first and last container bays

When used to lock two empty intermodal containers that are to be lifted, one on top of the other

To secure all on-deck containers

Some centrifugal cargo oil pumps are designed with an automatic stripping system, which allows the cargo oil tank to fully discharge its contents. By what principle does such a stripping system operate?

On the basis that, if cargo vapour can be stopped from entering the cargo pump suction inlet, the flow will continue without cavitation.

By automatically reducing the rate at which oil cargo enters the cargo pump, such that any vapour lifted along with the liquid does not cause a loss of suction.

By the optimum size and positioning of the suction inlet that feeds the automatic stripping system, which ensures that the cargo oil tank is discharged to the maximum possible extent.

On the principle that if the suction is fitted low enough in the cargo oil tank and a specified minimum trim is maintained, suction will be available until the tank is completely discharged.

Where shall you be able to activate the ship security alert system on board ro-ro passenger ships?

Navigation bridge

Captain's- and Chief Officer's office

Captain's office

From the navigation bridge and in at least one other location

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.

Why do the cargo holds of a self-unloading bulk carrier have a ‘W’ shaped cross section?

So that during discharge the cargo will automatically fall onto the underlying conveyor belts

To make it easier for cargo to be discharged by grabs

To reduce the extent of tank top damages when discharging cargo

So that cargoes are self-trimming during loading

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.

At what temperature do we take the Reid Vapour Pressure test?

We take the Reid Vapour Pressure (RVP) test at the temperature of 100 C.

We take the Reid Vapour Pressure (RVP) test at the temperature of 60.0 C.

We take the Reid Vapour Pressure (RVP) test at the temperature of 38.7 C.

We take the Reid Vapour Pressure (RVP) test at the temperature of 37.8 C.

How is the condenser cooling water flow regulating valve automatically controlled in a vapour compression refrigeration system?

By the compressor discharge pressure.

By the quantity of refrigerant in the system.

By the temperature of the refrigerant after the evaporator.

By the temperature in the refrigerated room.

On a General Cargo Vessel, what should a cargo lashing plan comply with?

The cargo securing manual

Master's instructions

Charterers? instructions

Shipper's instructions

Where should empty and unlceaned receptacles that previously contained toxic gas be stowed?

Under deck

On deck forward of the accommodation

Anywhere on deck

On deck abaft the accommodation

What should the duty crew member do if he observes stevedores smoking in ‘no smoking’ areas?

Immediately inform the stevedore foreman and duty officer

Wait to inform the relieving duty crew member

Inform the chief officer

Tell the stevedore to stop smoking

If a recipe requires that a dish be "poached", what does this mean?

Wrapped in foil and baked.

Cooked gently in a simmering liquid.

Lightly pan fried.

Turned frequently under a grill oven.

A General Cargo vessel has 50 tonne SWL heavy lift derrick; a load of 48 tonnes is to be loaded ;the lifting gear of slings and spreader bar weighs 4 tonnes ; which of the following statements is correct?

The load cannot be loaded because the combined weight of the load and the lifting gear must at least 10% less than the SWL of the derrick

The load cannot be loaded because the combined weight of the load and the lifting gear will exceed the SWL by two tonnes

The load can be loaded because the load itself is less than the SWL of the derrick

The load can be loaded because the SWL can sometimes be exceeded by small amounts in cargo operations

Why is an automatic slow turning feature included in the start air system of many large 2 stroke diesel engines?

To avoid damage during start of the engine in case water or other liquid has gathered in the cylinders during an extended stop.

To fill the cylinders with sufficient fresh air to ensure a safe start of the engine.

To check that all indicator cocks are closed before staring the engine..

To reduce the start air consumption during start up of the engine.

A medium speed diesel engine, operating on heavy oil has suffered repeated exhaust valve failure. Upon inspection damage is noted on the underside of the valve resulting in some cases in holes passing through the valve even though the seating face appears hardly damaged. Which of the given options is the most likely cause of this type of damage?

High temperature corrosion due to high vanadium content in the fuel oil.

Failure of the valve rotators causing distortion of the valve seat.

Incorrect tappet (rocker arm) clearance preventing the valves from closing properly.

Cold temperature corrosion due to high sulphur content in the fuel and incorrect grade of cylinder lubricating oil.

Why are many machinery components onboard ship now tightened using cylindrical jacks and hydraulic oil pressure rather than more traditional methods such as, for example, the use of torque wrenches?

Hydraulic tightening avoids the risk of unwanted bending stresses when compared to other methods.

Hydraulic tightening of fastenings is always more accurate than any other method.

It is easier to slacken off component fastenings that have been tightened hydraulically when maintenance is due.

It is possible to get the component fastenings tighter using hydraulic equipment than by using other methods.

Why should elevators not be used in an emergency?

Too few people can be moved in an elevator.

The elevator is reserved for people with special needs.

Power could fail and passengers could be trapped inside.

Engineering will shut down the ship's power and the elevator will be useless.

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.

What is the most common method of connecting the manifold of an LNG carrier to the shore terminal pipelines?

By special sections of portable steel pipe.

By permanently fixed metal hard arms.

By composite hoses suspended from a boom with a swinging arm.

By flexible rubber hoses.

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.

Which approved publication should be used by a seafarer to help overcome any misunderstanding in communications?

The Oxford Concise Dictionary

The (ICS) Bridge Procedures Guide

Standard Marine Navigational Vocabulary

The (IMO) Standard Marine Communication Phrases (SMCP) booklet

The water content of inert gas is important when the gas is used for cargo tank inerting and drying operations on a liquefied gas carrier. Which drier arrangement for the inert gas will result in the lowest water content and dew point of the inert gas?

An absorption drier followed by a refrigerated drier in series can reduce the dew point down to less than minus 40 degrees C.

A refrigerated drier on its own can usually reduce the dew point to less than minus 40 degrees C.

A refrigerated drier followed by an absorption drier in series can reduce the dew point to less than minus 40 degrees C.

A refrigerated drier and an absorption drier operated in parallel can reduce the dew point to less than minus 40 degrees C.

Carbon dioxide, CO2, can solidify and form dry ice at low temperatures. What is the solidifying temperature of CO2?

approximately minus 87.5 C

approximately minus 78.5 C

approximately minus 60.5 C

approximately minus 30.5 C

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.

Which of the following options is the most likely cause of high exhaust gas temperatures in all cylinders of a diesel engine?

Water in the fuel supply.

Partial blockage in the exhaust gas system.

Worn or broken piston rings.

Faulty high pressure fuel pump on one of the cylinders.

What is the meaning of the term “Span” of a transducer

The length between the connecting flanges

Type of standard output signal according to ISO

The maximum output signal when you have a minimum process value

The difference between maximum and minimum measurement that gives a standard output signal

How would you prevent hot liquids spilling from pans in heavy weather?

Place absorbant cloths around the pans to catch any spillage.

Dry cook all food, do not use any water or fat.

Use tight fitting lids on the pans, secured with string.

Fit guard rails around the range and fill the pans to a lower level than usual.

On a container vessel, select from the list the most effective method of dealing with a fire in an under deck cargo space.

Boundary cool the cargo hold from the deck.

Deploy the fixed fire fighting system.

Tackle the fire locally with fire hoses.

Turn the vessel off the wind to reduce the relative wind strength.

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

Stop the hold ventilation and close all ventilator covers

Stop the hold ventilation

Run the hold ventilation in ‘supply’ mode

Run the hold ventilation in ‘exhaust’ mode

The coil of a 12V, 120mA dc relay must be connected across a 24V supply. What action should be taken?

Install a 100 ohm resistor in series with the coil

Install a 100 k ohm resistor in parallel with the coil

Install a 100 k ohm resistor in series with the coil

Install a 100 ohm resistor in parallel with the coil

A water heating system with automatic temperature control uses steam as the heating medium and the temperature is controlled by a pneumatically operated valve? What would be an acceptable start up procedure of the system from cold state?

Start with the control valve in manual and use the hand jack to gradually increase the temperature by throttling the steam flow before changing to pneumatic control.

Start the system up in manual mode and gradually increase the controller output signal until the temperature reaches the required value before changing over to automatic control.

Start the system up in automatic mode with normal set point but with the steam supply to the control valve manually throttled in.

Start the system up in automatic mode with normal set point so that the required temperature is achieved as quickly as possible.

The most effective way to combat the threat of drug smuggling is to?

Organize crew into pairs and conduct weekly searches of the ship.

"Combining routine, but irregular searches of the ship with spontaneous targeted searches."

"Perform routine, but irregular searches using teams of two or more personnel from the same department."

Perform spontaneous targeted searches using teams of two or more personnel from the same department.

Why do we insulate cargo tanks and other components?

To protect the crewmembers.

To prevent heat flow in the cargo, and to protect the ship's bunker tanks.

To save fuel.

To prevent heat flow into the cargo, and to protect the ships structure.

If the oxygen content in an enclosed space is less than 20% and a non-essential routine inspection of the space is due which of the following is the correct course of action?

Postpone the inspection until the correct oxygen content can be achieved.

Carry out the inspection as quickly as possible.

Wear breathing apparatus while carrying out the inspection.

Release oxygen into the space from an oxygen cylinder.

How can a lead-acid type battery be checked to confirm if it is fully charged or not?

Measure the relative density (specific gravity) of the electrolyte

Measure the temperature of the electrolyte

Measure the level of the electrolyte

Measure the battery voltage

What is the optimum cargo lashing angle against sliding?

Around 20?

Around 25?

Around 30?

Around 35?

The reliquefaction plant for cargo cooling of liquefied gas cargoes can operate on either a direct or indirect cycle. On which liquefied gas cargoes must indirect cycle cargo cooling plant be used according to the IMO Gas Codes?

All liquefied cargoes in north European waters during winter time

Cargoes such as butadiene and vinyl chloride which need two stage cycle with intercooling.

Cargoes such as chlorine, ethylene oxide and propylene oxide for which the vapours cannot be compressed due to temperature restrictions.

LPG cargoes being carried in north European waters during winter time

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

What is the normal name of the special wire/rope on board the ship used to make a tug fast?

Mooring wire

Tugs rope

Towing spring

Tugs wire

In what circumstances can a ships loading computer be used with confidence on a container vessel.

When the computer has been manufactured by a reputable supplier.

When a new computer with a large RAM has been received.

When the loading computer has been approved by Class.

When the computer has been supplied by the company IT department.

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

As long as the driver looks ok, load the cargo

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

Load it, usually tank lorries are not clearly marked

Refuse to load the vehicle

Why is the tightening of the timing chain important?

To reduce vibration in the chain.

To avoid high wear down of chain and chain wheel tooth and a potential breakdown.

To get the right timing on the engine.

To reduce the noise level

Read the text in the diagram and answer this question: What should be given to prospective seafarers?

Approved training in survival techniques

Passport and visa

Recommendations

Survival and protective clothing

One of the Main Engine cooling pumps is down for maintenance. The rest of the cooling pumps are operating near full capacity with minimum margins on the maximum temperature limit. What should be the correct action to take with regard to UMS operation?

Operate the engine room on manual mode until the maintenance is completed and the cooling pump is operational and switched to stand-by mode.

Arrange frequent checks of the condition during the night otherwise operate in normal UMS-mode

Arrange with a rating "on watch" in the engine room for the UMS period.

Hope that the alarm function and automatic temperature regulation will function correctly and switch to UMS-mode as normal

The "dew point" of a liquid chemical is often quoted in the documentation relating to its loading and carriage. Which of the following is a definition of "dew point"?

The temperature at which a gas is saturated with respect to a condensable component, as in operational terms is seen at the point when air is saturated with moisture.

The temperature at which dry-ice melts in Acetone.

The temperature at which a condensable component is saturated with respect to a gas, as in operational terms is seen at the point when moisture no longer detectable in air.

The temperature at which a saturated gas exhibits condensation.

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

1% O2.

3% O2.

4% O2.

5% O2.

When it is midsummer in northern Europe, what time of the year is it in South Africa?

Midsummer

Autumn

Midwinter

Early spring

Which of the following answers most suitably cover the standard duties of the bridge Officer of the Watch when the ship is at anchorage?

Display the anchor signal, patrol the ship frequently and check the anchor chain for dragging

Display anchor signal, check the ships position and keep a good lookout

Display the anchor signal and ensure the ship swings the same way at each change of tide

Display anchor signals and keep a good lookout of other ships in the area

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