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Главная Онлайн-тесты CES Все типы судов MASTER / Ch-Officer Test Online and Answers for Marine Engineering and Navigation (CES v6.0)
Онлайн-тестирование: Test Online and Answers for Marine Engineering and Navigation (CES v6.0)
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Тест состоит из 80 случайных вопросов.
Всего вопросов по данной теме: 135
Всего вопросов по данной теме: 135
Вопрос 1 из 80
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How often shall each member of the crew participate in an abandon ship drill?
Once every 6 months.
Once every week.
Once every month.
Once a year.
Self-igniting lights on lifebuoys must either burn continuously or flash at a specified rate for a period of at least:
2 hours.
30 minutes.
1 hour.
90 minutes.
What is the main advantage of plate heat exchangers?
Cheaper to install.
Easier to clean.
More efficient and take up less space.
Requires less maintenance.
What is a “Rescue Unit” (RU)?
A unit ready for search and rescue operations at sea any time of the day.
A unit specializing in search and rescue operations at sea.
A unit composed of trained personnel suitability equipped for expeditious search and rescue.
A permanently manned rescue vessel.
What is the minimum allowable value for GZ?
0,15 m.
0,2 m.
0,35 m.
0,42 m.
If mouth-to-mouth (M-T-M) ventilation by itself is unsuccessful and the casualty’s heart stops or has stopped beating, you must perform external chest compression (ECC) in conjunction with M-T-M. What is the complete rate when performing ECC?
Complete 25 compressions at the rate of 75 compressions per minute.
Complete 10 compressions at the rate of 40 compressions per minute.
Complete 15 compressions at the rate of 80 compressions per minute.
Complete 20 compressions at the rate of 60 compressions per minute.
The watertight integrity of a vessel must be intact, when:
In open waters only.
Can be relaxed in inshore waters.
Can be relaxed during spells of fine weather.
When manoeuvring.
In which way make intake of poisonous material occur?
By inhalation.
All mentioned.
Swallowing.
Skin penetration and skin absorption.
What is the BM for a box-shaped vessel in terms of breadth and draught?
Breadth cubed / 12 × draught.
Breadth squared / 12 × draught.
Breadth × draught / 10.
Breadth squared / 6.
The two main types of refrigeration system evaporators are called?
Finned and tube.
Wet and dry.
Short and extended.
Dry and flooded.
A burn may occur when electricity of high current and voltage passes through the body. Most damage occurs at the points of entry and exit of electricity. What is the treatment for electrical burns?
Apply lotion and ointment to injured area and secure with a bandage.
Remove loose skin and apply oinment. Don’t secure with bandage.
Break blisters and secure with bandages.
Place sterile dressing over the burn and secure with a bandage.
What is the purpose of hunting hear when referring to a hydraulic steering system?
Limits the speed of the rudder movement.
Provides feedback to the pump control.
To control hydraulic motor swash plate movement.
To transmit hydraulic pressure.
What is initial stability?
It is the stability status of the ship, when first delivered to owners from the shipyard.
It is the vessel’s GM, after completion of loading.
It is the stability of the vessel in her initial position, and is expressed by metacentric height.
It is the vessel’s GM, before commencement of loading.
What is statical stability?
It is the ability of a vessel to return to her initial or upright position, after having been forcibly inclined.
It is the basic stability information a vessel is required to carry by law.
It is the relationship between the moment of a couple and the righting lever.
It is another name for metacentric height.
What is part No. 3?
Turbine coupling.
Turbine bearing.
Turbine drive gear train.
Turbine electromagnetic clutch.
You are to release the towing wire with forerunner. You have 3 men with you to do the work. How do you do it in a safe way?
With manpower. Two men picking up slack and one man lifts off the eye and let go simultaneously.
Use the winch. Forerunner and wire stopper to pick up the slack and stop the wire. One man operating each. Make the forerunner fast on the bit, releasing the eye of wire and the stopper, lower the wire easy by forerunner.
After heaving on the wire by a forerunner, cut the forerunner and so let the wire free.
What activity will have the greatest fire fighting effect in case of a fire?
All fire fighting teams are organized as soon as possible.
Extinguishing attempt is started immediately.
Call the Chief Officer.
All possible fire fighting equipment is brought to the scene.
Which of these requirements regarding the launching and recovery arrangements for rescue boats corresponds to the SOLAS regulations?
The release mechanism shall be of an automatic type approved by the flag state administration.
Launching shall be possible with a headway speed of up to 5 knots in heavy weather.
Rapid recovery shall be possible with the boat’s full complement of persons and equipment.
What measures regarding ship stability should be taken in order to make a passenger ship’s able to withstand critical damage?
Maintain sufficient intact stability.
Damaged stability to be increased by weight redistribution.
Avoid overloading the ship.
Damaged stability to be increased by use of water ballast.
Your vessel is to unmoor. Two tugs will assist at the unmooring. Which position and how do you want to use the tugs?
Make the tug fast aft for pulling.
Fast FWD and AFT in centre lead to pull the vessel out from the jetty and make it in position for voyage.
Make the tug fast in centre now fairlead for pulling.
Make fast on ship’s.
The muster list shall show the duties assigned to the different members of the crew. Which of the given duties do not necessarily have to be included in the muster list?
Clearing escape routes.
Preparation and launching of survival crafts.
Manning of fire parties assigned to deal with fires.
Muster of passengers.
The Disc type oil separator can usually separate water from oil when processing oils between which density ranges?
0,87 to 0,95.
0,845 to 0,965.
0,78 to 0,98.
0,84 to 0,945.
What liquid is present in the collecting point at the bottom of the evaporator?
Brine.
Freshwater.
Ejector water.
Sea water.
What kind of safety protection is to be weared during a mooring operation?
Safety shoes and boiler suit.
No particular protection necessary.
Gloves and helmet.
Helmet, safety shoes, gloves and protecting cloths.
On a steamship at sea, electricity is supplied by:
Gas turbines.
Diesel engines.
The main engine.
Turbo alternators.
Does liquid turbulence improve the efficiency of a plate heat exchanger?
Makes no difference.
Turbulence is not possible in a plate heat exchanger.
No.
Yes.
What is the required salinity of the fresh water produced as drinking water onboard?
Below 7 ppm.
Below 20 ppm.
Below 2 ppm.
Below 50 ppm.
Unconscious casualties who are breathing and whose hearts are beating should be placed in the recovery position. Why is this position so important?
The recovery position makes it easy to maintain any kind of bleeding.
The position ensures that an open airway is maintained.
Because it keeps the heart beating.
The position prevents the patient from falling asleep.
In a modern steam turbine steam is prevented from leaking along the shaft by:
The inlet nozzle.
A labyrinth seal.
The blading.
High temperature packing.
What is the “wave period”?
It is the time in minutes between successive wave crests, passing a fixed point.
It is the time in seconds between successive wave crests or troughs, passing a fixed point.
It is the time interval between the highest waves in a sequence of waves.
It is the comparison of the height of successive waves.
If the fresh water generator is producing water with salinity of 5 ppm and is changed to produce water of 2 ppm, this is mainly achieved by:
Throttling sea water feed supply to the evaporator.
Decreasing sea water cooling to the condenser.
Slowing down production by opening the vacuum breaker valve.
Decreasing production by lowering fresh water supply from main engine.
Which position is the best to stop bleeding from the nose?
Sitting with your head down, holding the nose tightly.
Sitting on a chair, leaning forward with two fingers pressing the nose together.
Laying on the back, holding a wet cold towel on top of the nose.
Laying on the back, leaning the head as much as possible.
Water hammer is a short lasting pressure peak traveling along the pipe. How can it be avoided in a cooling water system?
Operate valves quickly.
Operate valves gradually.
Start pump with closed valves.
Start the system with open valves and empty pipes.
Which of the following is a rotary compressor?
Diesel engine charge air compressor.
Emergency air compressor.
Starting air compressor.
Control air compressor.
In a distress situation, how many times or for how long should the emergency alarm signal be sounded?
Until all crew members and passengers have reported to their respect muster stations.
3 minutes.
Until the signal “risk is over” or the order abandon ship is given.
3 times.
How do you ensure reliable results from an inclining experiment?
No specific preparations are necessary and it can be done even in very windy conditions.
Perform test in calm conditions, with slack moorings, with minimum number of personnel and minimise free surface effects of liquids.
In case of a fire inside the acetylene-line in the AC/OX gas welding equipment, what action is deemed necessary?
Close valves on acetylene bottle(s).
Close acetylene valve in the workshop.
Close the valves on both acetylene and the oxygen bottles.
Close oxygen valve.
When you join a new ship, how are you informed about safety rules, alarm instructions and your own duties in case of an emergency?
By muster lists exhibited in conspicuous places.
By oral instructions by the captain.
By folder distributed to each crew member.
By alarm instructions in all crew cabins.
When cross-flooding arrangements to correct unsymmetrical flooding and excessive heel angles in damaged condition are installed in passenger ship’s, what is the maximum time allowed for equalization?
30 minutes.
15 minutes.
20 minutes.
10 minutes.
Which of these requirements regarding lifebuoys corresponds to the SOLAS regulations?
It must have a mass greater than 2,5 kgs.
If fitted with light or smoke signal, it must have a mass less than 4 kgs.
It must have sufficient air.
It must be constructed of inherently buoyant material.
Which one of the listed fire extinguishing medium is most effective against an open oil fire?
Powder.
Gas.
Water.
Foam.
High pressure steam turbines are:
Directly coupled to the propeller shaft.
Powered by feed water.
Larger than low pressure turbines.
Smaller than low pressure turbines.
How many rocket parachute flares are carried in each lifeboat?
6.
Nil.
12.
4.
What are “hydrostatic curves” used for in ship calculations?
For hydrostatic pressures on bulkheads.
Obtaining the shape of the body sections.
For pressure at various depths in oil fuel bunkers.
Mainly for trim calculations for predicting end draughts.
How can you minimize the squat effect?
Maintain your course and speed.
Increase speed if the ship is not already on full ahead.
Do a zig-zag manoeuvre to reduce speed.
Decrease the speed as much as practicable.
In the shown situation, the bow of your ship is pushed away from the bank. How can you handle this?
Give hard port rudder to get the ship back in the middle of the channel.
Give starboard rudder in order to balance the force of the bank effect and rudder effect.
Do nothing as the ship will handle itself.
Put your engine full astern to stop your ship.
The condenser in a steam plant is where:
Steam is turned back into water.
Water is turned into steam.
Electricity is supplied.
Low pressure steam is produced.
What are “cross curves” of stability used for onboard a ship?
Giving the capacity of various holds or tanks.
Similar to a set of Bonjean curves.
Obtaining statical stability curves at known displacements.
Showing tank calibration values.
What is a “Rescue Sub-Centre” (RSC)?
A national search and rescue centre subordinate to an international search and rescue co-ordinating centre.
A unit subordinate to a rescue co-ordinating centre.
A centre for underwater search and rescue operation.
A centre established to assist the main national rescue centre.
What is the formula to calculate the volume of displacement?
L by B by d by cb.
L by Gm by KG.
B by Km by d by cb.
L by 1/2B by draft by freeboard.
The diagram shows loadline marks. How is the distance between S and T calculated?
One sixtieth of the summer draft.
One forty eighth of the summer draft.
Nine tenths of the FWA.
Four fifths of the FWA.
Which alarm and shut-down device is fitted on the thrust bearing assembly?
The cooling water alarm.
The axial clearance alarm.
The steam pressure reducing alarm.
The low lub oil flow alarm.
If your vessel is tending to “synchronise”, what should you do to alter this condition?
You stop your ship and wait for the synchronizing to stop.
You should try to alter the wave period by altering course and by reducing speed.
You should put your ship’s beam on to the sea and increase speed.
You should increase your speed to full, whilst maintaining the same course.
The ship’s training manual must contain instructions and information on the life saving appliances carried onboard. Which of these duties must be included?
Correct use of oars and sails for survival craft.
Correct donning of protective clothing.
Correct method of revival of casualties.
Correct launching, boarding and clearing of survival craft and rescue craft.
Anyone of the crew who is assigned to watch duties in ports has a number of important tasks to carry out. Which one of the listed tasks has to be included in the watchman’s duties?
Checking the trim of the vessel.
Checking the number of persons entering/leaving the vessel.
Checking the moorings for tightness/slack.
Checking the safe and secure handling of cargo.
What is the source of energy used to convert salt water into fresh water in the fresh water generator?
The vacuum and ejector pump.
The ejector pump and sea water pump combined.
The sea water pump supplying the evaporating water.
The waste heat from the main engine.
How is bank effect felt in a vessel?
The vessel’s stern is pushed away from the nearest bank.
The vessel’s bow is pushed away from the nearest bank.
The whole vessel is drawn in parallel to the nearest bank.
The whole vessel is pushed away parallel to the nearest bank.
A receiver in a refrigeration system is used to:
Cool the hot gases.
Separate oil from the refrigerant.
Condense the refrigerant.
Store the refrigerant.
You are berthed with a steady offshore beam wind of 30 knots. This wind suddenly increases to 60 knots. When this happens, the force driving the vessel off-berth will be:
Quadrupled.
Quintupled.
Doubled.
Tripled.
Your vessel is to turn in a narrow canal by use of one tug (turn to port with the bow). In which position and how would you use the tug? Vessels engine will be used as well.
Make the tug fast aft for pulling.
Make the tug fast on starboard shoulder to push.
Make the tug fast in centre now fairlead for pulling.
Make the tug fast on port shoulder to pull.
Turbo alternators perform which of the following tasks?
Supplying electricity on a motorship.
Supplying electricity on steamships when the main boiler is shut down.
Supplying electricity on steamships when the main boiler is operating.
Supplying electricity from diesel engines.
What shall you do if you see a person falling into the sea?
Put on a lifejacket.
Launch a lifeboat.
Throw a lifebuoy overboard and report to the bridge immediately.
Run aft.
Your ship is operating with a right handed propeller. Before coming astern, how should you apply the rudder?
As with No. 2.
As with No. 1.
As with No. 3.
I think the speed is too slow.
What is the purpose of the sea water pump item No 13?
To cool the evaporator.
To drive the air ejector of the evaporator.
To supply sea water to the condenser.
To supply water to be evaporated.
You are about to pass another ship in a close situation. What can happen in this situation?
The two ships will be pushed toward the banks.
Your ship will not be affected in this situation.
The bow of your ship will be sucked towards the stern of the other ship.
Due to suction, the two ships will be sucked together.
Boiler feed water is water:
Used to cool steam back into water.
Taken from the condenser and fed back to the boiler.
Used to cool steam turbines.
Mixed with fuel oil and burnt as waste oil.
What part in this diagram is the low pressure turbine?
2.
3.
1.
4.
What is prismatic co-efficient?
cm / cb.
Volume of displacement / (midship area × LBP). Also = cb / cm.
A co-efficient for a box shaped vessel only.
The same as block co-efficient.
A water content greater than 2 % is detected in a lubricating oil system. What is the best action to do?
Segregate the oil in a separate tank for continuous purifying.
Boil out the water by increasing the temperature.
Continuous purifying the system with the oil pumps running.
It is no danger, until the water level reach 6-8 %.
Which part in this diagram is the high pressure turbine?
1.
6.
4.
2.
What is the purpose of performing an inclining experiment or stability test?
To determine the maximum angle of heel, before a ship will capsize.
It is done to find out the GM of a vessel, place the ship’s lightweight and VCG and LCG at this lightweight.
There is no need for such an experiment, because the information it gives may be obtained in various other easy ways.
To test the safe working load of a derrick or crane.
What is a pro-metacenter?
This expresses KM as moving away off the centreline at large angles of heel.
It is the ability of a vessel to return to an upright position.
It is the term used to indicate a vessel has a more than adequate GM.
It is just another name for metacentric height.
Which of the equipment listed is not included in the fireman’s personal equipment? (SOLAS II-2/17.1.1).
Protective clothing.
Leather safety boots and gloves.
An axe.
An electric safety lamp.
What kind of shaft seals are used on this high pressure turbine?
Counterbalancing seals.
Labyrinth seals.
Vacuum seals.
Mechanical seals.
Which of the following statements regarding steam turbines is NOT true?
From the HP turbine, the steam then goes to the condenser.
The HP turbine is a faster rotating machine than a diesel engine.
The HP turbine is smaller than the LP turbine.
The HP turbine receives the steam before the LP turbine.
To get the best possible efficiency from refrigerator evaporators, the superheat should be regulated to:
5-10 °C.
0-1 °C.
40-50 °C.
25-30 °C.
How is shallow water effect felt in a vessel?
The vessel has a tendency to turn to port (right turning propeller).
The vessel has a tendency to turn to starboard (left turning propeller).
The vessel becomes sluggish in responding to the rudder.
The vessel responds very quickly to the rudder.
What can be used to reduce the effect of the state of sea-waves?
Fuel oil.
Foam.
Crude oil.
Vegetable/fish oil.
What is hypothermia and how is it cured?
Body temperature below 23 °C/Heat the body.
Heavy coughing/medication.
Body temperature below 39 °C/Heat the body.
Body temperature below 35 °C/Heat the body.
In a refrigeration system, a fluid that serves only as a heat carrier is called the:
Vaporizing refrigerant.
Condensing refrigerant.
Primary refrigerant.
Secondary refrigerant.
The current test includes Seagull CES questions on the topic of «Engineering and Navigation». These questions are intended to assess the competence of specialists in preventing accidents related to transport safety and can also be used for self-assessment.
- Version: 6.0.
- Test type: Detailed Test.
- Function area: Engine.
- Detailed subject: Emergency Equipment and Procedures (Engineering and Navigation), Auxillary Machinery (Engineering), Trim, Stability and Stress ( Navigation), Survival Craft, Rescue Craft (Engineering and Navigation), Main Propulsion, Turbine, Boilers (Engineering), Ship Manoeuvring, Handling (Navigation).
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19.03.2025
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