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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
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Which way does the steam pass through in the system?
From the low pressure turbine to the high pressure turbine.
From the supply valve to the high pressure turbine.
From the high pressure turbine to the low pressure turbine.
From the condenser to the low pressure turbine.
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.
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.
The vessel will anchor with pilot onboard. You are the duty officer on the bridge. What is your main duty?
Check the position only.
No duty when pilot is onboard.
Follow the master’s order.
Follow pilots order.
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.
You want to turn your vessel in a narrow canal by use of two tugs with same power. The wind varies in the range moderate/strong. Where/how will the tugs be used?
Pulling, made fast in the vessel.
One tug pushing, one tug pulling.
Pushing, made fast in the vessel.
Which of the following statements regarding main boilers is NOT true?
At least two safety valves will be fitted.
The feed water need not be very pure.
The burners could be at the top firing down.
The superheated steam pressure could be as much as 60 bar.
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.
What is the effect on draft caused by a vessel heeling or listing?
There is no change in draft regardless of the extent of the list.
The draft is reduced by the amount the high side rises above the upright position.
The draft is increased by the difference between the high side draft and the low side draft.
The draft is increased by the difference in the heeled draft measured by a straight line in tangent with the keel, and the draft before heeling.
What is the centre of pressure?
It is the point where the total thrust of pressure could be considered to act.
It is the pressure at the centre of flotation.
It is the pressure in the centre of a specific tank.
It is the part that is least likely to give way to external pressure.
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.
Why is the maximum pressure in a plate heat exchanger usually limited to about 10 bar?
Pump capacity.
All the above alternatives.
Possibility of rupturing the plates.
Difficult to seal plates above this pressure.
What can be used to reduce the effect of the state of sea-waves?
Fuel oil.
Foam.
Crude oil.
Vegetable/fish oil.
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.
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.
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.
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 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.
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.
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.
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.
How many hand flares should each lifeboat normally carry?
10.
2.
6.
4.
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.
What is the reason for the effect we call squat?
The bow and stern wave make the ship sink lower in the water.
Increased effect of gravity due to closeness of the sea bed.
Increased velocity and decreased water pressure around the ship’s hull.
Decreased velocity and increased water pressure around the ship’s hull.
You are underway on a power driven vessel in open water, when you see another power driven vessel approximately five miles straight ahead on an opposite course. What action do you take?
Try and call him on the VHF to decide on what action to take.
Make a bold alternation to starboard and pass on his port side.
Make a bold alteration to port and pass on his starboard side.
Stand on with caution as he will alter course.
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 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.
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.
What is the purpose of the control position on an enclosed lifeboat?
It is for sending out distress messages giving the ship’s last known position.
It’s a place reserved for injured persons.
It’s the position from which the boat is steered and the safety systems are operated.
It facilitates entering the names of all persons on-board. This is essential record keeping requirements.
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.
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.
What kind of shaft seals are used on this high pressure turbine?
Counterbalancing seals.
Labyrinth seals.
Vacuum seals.
Mechanical seals.
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 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.
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.
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.
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.
What does permeability mean?
To make a compartment water tight.
The process of making a compartment non-porus.
The relationship between the volume of a compartment and the volume available for water if bilged.
The flooding of the engine room compartment.
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 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 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.
If you have to carry out hot work close to a smoke detector in the engine room, what precautions should be taken?
Notify Deck officer in charge that a fire alarm may occur.
Notify master, deck officer and engineers in charge. The loop for this special senseor to be switched off and take normal precautions for hot work.
No special precautions except for having a watchman and a fire extinguisher available.
Disconnect the smoke detector.
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.
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.
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.
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 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.
What do the intersecting horizontal lines signify in the diagram?
The change in the centre of floatation, after trimming.
They show the actual angle of trim.
They only serve as a base for the two vertical lines.
The change of draft after trimming.
Which part in this diagram is the high pressure turbine?
1.
6.
4.
2.
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.
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.
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 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.
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.
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.
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.
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 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.
What is the minimum allowable value for GM?
0,15 m.
0,25 m.
0,45 m.
0,35 m.
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.
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.
Serious tube leakage in the air ejector condenser assembly will cause:
Faulty steam pressure.
Fouled nozzles.
Clogged steam strainers.
Loss of vacuum.
Who is the leader of the lifeboat drill (abandon ship drill)?
The first member of the crew arriving at the survival craft.
The appointed lifeboat commander.
Senior engine officer.
Senior deck officer.
The indications of a faulty refrigeration compressor valve are:
Continuous running.
Gradual or sudden decrease in capacity.
Low head pressure, high suction pressure.
Any of the alternatives.
Regarding feed water, which of the following statements is NOT true?
Feed water in HP boilers is normally pumped with a single stage centrifugal pump.
It is fresh water.
It is turned into steam in the boiler.
Steam turns to feed water in the condenser.
What part in this diagram is the low pressure turbine?
2.
3.
1.
4.
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.
In a two stage compressor, you will find pistons with different diameters (one is bigger than the other). Which one of the following statement is correct?
A big piston will deliver dryer air into stage one.
The biggest diameter piston is the stage two piston.
The smallest diameter piston is the stage two piston.
A big piston will give less oil content in the air.
What is part number 1 called?
The drainage tank.
The service tank.
The setting tank.
The expansion tank.
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 %.
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.
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.
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 is the absolutely main purpose of fighting a fire onboard?
Try to put out the fire.
To put out the fire.
Rescuing of life.
To limit the fire.
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.
A receiver in a refrigeration system is used to:
Cool the hot gases.
Separate oil from the refrigerant.
Condense the refrigerant.
Store the refrigerant.
What is the critical time in a dry docking operation?
After the ship has taken to the blocks, and shores are being put in place.
When they start to empty the dry dock.
Just before the ship takes the blocks at the stern.
As the ship enters the dock gates, to ensure she is not moving too fast.
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 liquid is present in the collecting point at the bottom of the evaporator?
Brine.
Freshwater.
Ejector water.
Sea water.
Modern high pressure boilers produce which of the following?
Fresh water for drinking.
Superheated steam.
Feed water.
Saturated steam.
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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