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家 在线测试 CES 所有类型的船舶 MASTER / Ch-Officer Test Online and Answers for Marine Engineering and Navigation (CES v6.0)
在线测试： Test Online and Answers for Marine Engineering and Navigation (CES v6.0)
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该测试由 80 个随机问题组成。
有关此主题的总问题： 135
有关此主题的总问题： 135
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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.
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.
After obtaining permission from the duty deck officer, under what conditions would the process of soot blowing the boiler tubes be most beneficial?
When the boiler is firing on high rate.
When the boiler is standing idle.
When the boiler is firing on medium rate.
When the boiler is firing on low rate.
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 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.
Where can you find out if you belong to the forward mooring gang or the aft mooring gang?
Posted on the notice board onboard.
Alarm instruction onboard.
Being distributed for each port.
Deck crew forward and engine crew aft.
How is a “turning couple” formed?
A couple is formed when two unequal forces in a vertical position are acting in the same direction.
Couple is formed when two equal parallel forces in a vertical position are acting in opposite direction.
A couple is formed by joining two vertical posts together.
A couple is formed when two unequal parallel forces are acting in the same direction.
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.
Your ship is going astern right-handed propeller as sketched below. How is the ship most likely to react?
The stern will fall off to starboard.
The ship will go straight astern.
The stern will back into the wind.
The bow will go to port.
Superheated steam is steam:
That is mixed with water vapour.
That can be used for heating the accommodation.
That has been condensed.
That has been heated until it is “dry”.
What formula do you use to determine the GM from an inclining experiment?
GM = KM by d by 1/2 length of plumbline divided by W by length of plumbline.
There is no formula. You simply measure the deflection of the plumbline with a tape measure.
GM = w by distance by length of plumbline divided by W by deflection of the plumbline.
GM = w by length of plumbline divided by W by deflection of the plumbline.
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.
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.
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.
In a refrigeration system, a fluid that serves only as a heat carrier is called the:
Vaporizing refrigerant.
Condensing refrigerant.
Primary refrigerant.
Secondary refrigerant.
What is meant by “synchronism or resonance”?
This is a dangerous condition that occurs when the ship’s still water period and the apparent wave period are equal.
This is stern used to describe pitching and rolling.
This is a term used to describe violent rolling.
This is a situation used to describe gentle rolling.
How is a vacuum created in the fresh water generator?
By the differential temperature of fresh and sea water.
By pumping or educting out the brine.
By the condensing effect in the condenser.
By the vapour eductor driven by the ejector pump.
Modern high pressure boilers produce which of the following?
Fresh water for drinking.
Superheated steam.
Feed water.
Saturated steam.
What effects does freeboard have on a vessel’s dynamical stability?
As freeboard increases, the range of stability also increases, and this in turn leads to a greater dynamical stability.
If freeboard is greater, then dynamical stability is correspondingly reduced.
It does not have any effect on dynamical stability.
Freeboard and dynamical stability are not related in any way.
Which part in this diagram is the high pressure turbine?
1.
6.
4.
2.
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.
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.
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.
An alarm signal consisting of seven short blasts followed by one prolonged blast is sounded by the ship’s whistle and alarm bells. What are you to do?
Go to (or remain in) your cabin and await further orders.
Report on the bridge (Deck crew) or engine room (Engine crew) for further orders.
Go to the fire station.
Go to your lifeboat station.
The passage of electrical current through the body may result in severe and sometimes fatal injuries. You are witness to a man getting electric current through his body and is stuck to the dangerous area. It is impossible to switch off the current by any main switch. How can you break the current safely?
Apply oil on your hands and cut the cords by the uyse of any metallic pliers.
Call the electrician immediately.
Stand on dry insulating material and pull the person away with insulating material.
Just take the casualty in your arms and pull the person away.
Which one of the listed fire extinguishing medium is most effective against an open oil fire?
Powder.
Gas.
Water.
Foam.
What is item No. 9 shown in the diagram, fitted between evaporator and condenser of the fresh water generator?
A heating cap.
A water filter assembly.
A water deflector.
A desalinator unit.
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.
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 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 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.
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 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.
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.
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.
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.
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.
How many rocket parachute flares are carried in each lifeboat?
6.
Nil.
12.
4.
The two main types of refrigeration system evaporators are called?
Finned and tube.
Wet and dry.
Short and extended.
Dry and flooded.
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 kind of shaft seals are used on this high pressure turbine?
Counterbalancing seals.
Labyrinth seals.
Vacuum seals.
Mechanical seals.
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.
How is temperature controlled in a steam oil heater?
Steam inlet valve throttled.
Oil flow increased.
Steam outlet valve throttled.
Steam supply pressure reduced.
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.
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 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 is the general emergency alarm signal to be sounded by the ship’s whistle and alarm bells in case of an emergency situation?
Seven short blasts followed by one prolonged blast.
Series of long blasts.
Only one long blast.
Series of short blasts.
What liquid is present in the collecting point at the bottom of the evaporator?
Brine.
Freshwater.
Ejector water.
Sea water.
How do you consider the indicated speed for berthing?
To be sufficient.
It is up to the pilot to decide.
Too fast.
Too slow.
How would you increase the KG of a ship, loaded with a timber cargo, that has become unstable?
By completely emptying all partly filled double bottom tanks.
By filling all wing ballast tanks.
By filing the small divided double bottom tanks on the lower side, while jettisoning the deck cargo from the higher side.
By jettisoning the entire deck cargo of timber.
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.
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.
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.
The ship’s training manual must contain instructions and information on the life-saving appliances carried onboard. Which of these duties must also be included?
Correct method of release of survival craft from launching appliances.
Correct method for use of the on-board communication system.
Correct donning of fire protective clothing.
Correct use of oars in survival craft.
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.
What can be used to reduce the effect of the state of sea-waves?
Fuel oil.
Foam.
Crude oil.
Vegetable/fish oil.
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.
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.
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.
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.
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.
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.
How will the ship behave if you have a black out in the situation sketched below?
The wind will not affect your ship whatsoever.
She will continue on course and the speed will slowly drop.
She will turn to starboard and the speed will slowly drop.
She will turn to port and the speed will drop gradually.
How far from the coast is it permitted to use low-pressure evaporation to produce drinking water?
5 miles.
12 miles.
20 miles.
30 miles.
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.
Which of the following is true when comparing plate type with shell and tube type heat exchangers?
Physically smaller for the same capacity.
All of the above.
The capacity can easily be changed.
Better sealing between liquids in shell and tube.
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.
Name the two (2) different lubrication oil circuits of a steam turbine:
The thrust bearing and shaft circuit/the front and governor circuit.
The reduction gear oil/the turbine shaft bearing oil.
The bearing and gear oil circuit/the governor oil circuit.
The front bearing circuit/the rear bearing circuit.
What is part No. 3?
Turbine coupling.
Turbine bearing.
Turbine drive gear train.
Turbine electromagnetic clutch.
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.
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 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 most dangerous overtaking situation shown on the sketches?
A large vessel overtaking a small vessel with big difference in speed between the two vessels.
A small vessel overtaking a large vessel with a little difference in speed between the two vessels.
A large vessel overtaking a small vessel with a little difference in speed between the two vessels.
A small vessel overtaking a large vessel with big difference in speed between the two vessels.
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 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.
What kind of steam is feeding the astern turbine fitted on the same rotor as the LP turbine?
Reduced superheated steam via a pressure reducer.
Regenerated steam via resuperheater.
Steam from the main steam manifold via manoeuvring stand.
Exhaust steam from the high pressure turbine.
How many hand flares should each lifeboat normally carry?
10.
2.
6.
4.
On the air compressor crankcase, there is a small valve that let’s off pressure. What should be done if oil is present with air?
Block off the valve.
Check the clearance in the bearing.
Overhaul the compressor unit.
Lower the sump oil level.
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.
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.
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
I hope give me a lot of knowledge
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