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在线测试： Test online CES 5.1 for Engine department, Support level
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该测试由有关选定主题的随机问题组成。
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The display of a radiotelephone-installation shows the following selections: Transmitting mode: H3E Transmitting frequency: 2187,5 kHz The transmitting mode indicator is “flashing”. This can mean that:
You are ready to press the send buuton
The radiotelephone-alarm signal must be transmitted now
The transmitting mode is not compatible with the chosen frequency
The “H3E”mode is to be selected before transmitting on the 2187,5 kHz band
By “collect call” is meant:
a call for account of the receiver
an urgent call
Don't know
a group call
When stripping a tank, if excessive air is allowed to be drawn into the suction line, which of the following may occur?
Control of the operation will be lost and the tank will rapidly empty.
The pump will "race" and there will be a loss of suction.
The cargo pump impeller will stop rotating.
The back pressure will increase.
A ship is turning around a point called the "pivot point". What is the position of this invisible point when the ship is "dead" in the water?
Outside of the center line
Near the bow
About same position as the center of gravity
Near the stern of the ship
Is piracy an increasing or decreasing problem?
Piracy is not a probably
Piracy is decreasing
Piracy has remained constant for the last 50 years
Piracy is increasing
Which of the following information shall be specified by the muster list?
The abandon ship signal consisting of two long blasts
Action to be taken by crew and passengers
The muster list has been prepared and approved by the administration before the ship proceeds to sea
The specific duties assigned to passengers that are in charge of a group of others
You are the Officer in Charge during the loading of a tanker at a terminal in the Persian Gulf. The deck watchman reports "There is a lot of oil on the water to starboard". What should be your FIRST action?
Tell the jettyman to stop loading immediately.
Call the Master.
Check the Oil Discharge Monitoring Equipment (ODME).
Find out if the oil is coming from your vessel.
In the event of a diesel engine crankcase explosion which of the safety devices fitted to the engine is designed to minimise the risk of a secondary explosion?
Crankcase relief valves/doors
Main bearing temperature monitoring equipment.
Crankcase extraction fan.
Crankcase oil mist detector.
What should be logged when fumigating a bulk cargo?
The amount of fumigant used in each cargo hold
The time of fumigation treatment given in each cargo hold
The name of the fumigator and fumigation company
All
Why are handrails in ro-ro decks painted?
To prevent personal injury
To facilitate cargo operations during the hours of darkness
To highlight deck walkways
To prevent contact with vehicles
Why should wet cloths not be used for carrying hot cooking pans?
Because Health and Safety regulations prohibit the use of a wet cloth within 2.5 metres of a galley range.
Because they conduct heat quickly and may cause scalding.
Because a cloud of steam will be generated and the person carrying the pans may find it difficult to see where he is going.
Because the mositure will transfer to the pan and cool the contents.
Why do we use oil free compressors on the cargo side in a cargo cooling plant?
We use oil free compressors in the cargo side to avoid oil spill into the cargo.
We use oil free compressors in the cargo side because they have less RPM than the oil lubricated compressors.
We do not use oil free compressors in the cargo side because the compressors need to be lubricated.
We use oil free compressors in the cargo side because the cargo is cold and to cool down the compressor.
When loading LNG into prismatic type cargo tanks it is sometimes prohibited to leave any of the tanks between 10 to 80% full at completion of loading. What is the main reason that it is recommended to avoid this prohibited partly filled range?
The free surface effect might result in excessive sloshing loads.
It will increase the rate at which boil off gas will be produced.
It would be an uneconomical use of cargo capacity.
It will increase the vapour space and therefore increase the risk of flammable mixtures developing.
Which of the following is part of the spill response equipment inventory?
Hand cleaner
Sorbents
The pressure washer
Chipping goggles
The temperature of a refrigerated cargo is controlled by the temperature of the air being blown through the cargo hold which is often referred to as the DAT. What does the term DAT stand for?
Deviation Air Temperature.
Digital Air Temperature.
Delivered Atmosphere Temperature.
Delivery Air Temperature.
Is there any requirements regarding crew’s language skills?
All crew working directly with passengers must be able to communicate on the language spoken by the majority of the passenger.
Yes, all crew must be able to communicate on the language spoken by the majority of the passengers, or demands set by the company.
All crew working directly with passengers must be able to communicate on the language spoken by the majority of the passenger and english.
All crew must be able to speak english
What action should be taken by the Officer of the Watch when the GPS fails?
Stop ship until it is repaired and fully functional
Call the Master
Inform the technical officer responsible for the electronic navigational equipment and continue on passage using alternative navigational methods
No special action needs to be taken, just continue on the passage and wait for it to be fixed.
You are approaching a port in a snowstorm. You hear this signal. What kind of vessel is it and what is it doing?
It comes from a vessel restricted in her ability to manoeuvre.
It comes from a vessel engaged in pilotage duties and it is making way through the water.
It comes from a vessel at anchor, less than 100 metres in length.
It comes from a vessel engaged in pilotage duties at anchor, over 100 metres in length.
What should be done in preparation for loading cold rolled steel sheets in bulk carriers?
8mm wire cables should be laid athwartships over the tank top spaced 5m apart
Dunnage should be laid athwartships over the tank top
Dunnage should be laid fore and aft over the tank top
16mm wire cables should be laid fore and aft over the tank top spaced 3m apart
s it required that the PA-system (Public Address) is connected to a back-up power sypply?
No, the crew will inform the passengers in case of any black out or power failure
Yes, only if the voyage is more than 12 hours
No
Yes, the public address system shall be connected to the emergency source of power
Which part of the crankshaft of a modern large two stroke diesel engine is most likely to be the origin point for crack initiation during service and therefore needs the greatest attention during maintenance inspection?
The oil holes.
The keyways.
The fillet radii.
The dowel pins and dowel holes
Use of …… and …… is strictly prohibited onthe ro-ro deck, signs shall be displayed
Personal Protective Equipment and Mobile telephones
Naked lights and Smoking
Goggles and Smoking
Torches and Smoking
Is smoking permitted in the galley? (Select the most correct answer)
No.
Yes, but only once food service is completed.
If the vessel is in port, it is prohibited; if the vessel is at sea, then it is permitted.
Yes, because it is not considered a public area.
What is a "trailer horse" used for?
It is used to secure cargo in bad weather conditions
It is used as a fire-fighting vehicle
It is used to push lorries into their lanes
To secure and tow loose trailers
According to most industry standards, what percentage of oxygen by volume is required for entry into an enclosed space without a breathing apparatus?
11%
17%
21%
15%
The Inert Gas Plant shall be capable of delivering inert gas with an oxygen content of not more than?
Max. 5% oxygen
Max. 8% oxygen
Max. 10.8% oxygen
Max. 2% oxygen
During synchronising, the incoming generator should be running slightly "fast" compared to the busbar frequency.This is to ensure that the:
Incomer picks up as a generator
Incomers reverse power trip is tested
Incomer picks up as a motor
Most rapid synchronising action is achieved
On board a crude oil tanker, where would you look for guidance on the washing system and equipment, together with the applicable operating procedures?
MARPOL 73/78 - Annex I.
The Oil Record Book - ship particulars page.
The ODME Operating Manual - manufacturer's instruction section.
The Operating and Equipment (COW) Manual.
There are certain cargoes which are extremely sensitive to moisture in the atmosphere. How are they commonly protected when shipped on chemical tankers?
By heating the cargo above the temperature of the outside air.
By filling the tank with inert gas before loading.
By continuously ventilating the ullage space above the cargo in the tank.
By the application of a nitrogen blanket (pad) above the cargo in the tank.
Why do we use stabilisers on passenger ships?
To decrease the dynamic stability
To adjust the trim of the vessel
To increase the intact stability
To decrease the rolling angle of the vessel
Despite shipping lines having hulls coloured in the company livery colours e.g. black, blue, green, etc. refrigerated containers are now usually painted white. Which of the options given is the main reason for this?
White paint is cheaper than coloured paint.
White painted containers reduce the load on the refrigeration plant.
White coloured containers are more aesthetically pleasing.
White is synonymous with hygiene and cleanliness.
The position of the ship is found by taking a series of bearings using a magnetic compass. How should an error of 5 degrees WEST be applied to the compass bearings?
The same error applies to all bearings and therefore it can be ignored
Add the 5 degrees to the bearings
Subtract 5 degrees to the bearings
The error should be "High" or "Low" and therefore more information is required.
In the figure, which letter indicates what is known as "mooring bits"?
The mooring bits are indicated by B, in the figure
The mooring bits are indicated by C, in the figure
The mooring bits are indicated by D, in the figure
The mooring bits are indicated by A, in the figure
Which of the following type of crude oil requires special consideration in terms of carriage and cleaning?
Medium Crude.
Paraffinic Crude.
Reconstituted Crude.
Sweet Crude.
Which of the following detectors will you use for sensing if a watertight steel door is closed or open?
Proximity switch
Synchro
Strain gauge
Transducer
Once a vehicle has been stowed on board what should duty crew members ensure?
That the duty officer is notified of the vehicle’s position
That a photograph is taken of any damages
That the vehicle is lashed immediately
That there is no sign of tampering with internal accessories
What is the most utilised pump type for cargo discharge on a gas carrier?
Displacement pump.
Booster pump.
Hydraulic driven centrifugal pump.
An electrical operated submerged centrifugal pump.
In a circuit diagram of a simple hydraulic circuit, which of the alternatives does the following symbol indicate?
Directional control valve.
Throttle valve.
Pressure relief valve.
Double check valve.
Some process control systems may several inputs and controlled variables. In this context what is meant by split-range?
On-Off control
Several controllers are connected to the same control-valve
Several control-valves are connected to the same controller
Several control-loops for the same range
What is the minimum number of lifebuoys that shall be provided with self-igniting lights an self-activating smoke signals?
At least 1
4
2
50% of the total number of lifebuoys
In an inert gas system audible and visible alarms shall be provided to indicate faulty conditions in the installation. Which of the following conditions do not activate the alarms? (SOLAS II-2/62.19.1)
High air pressure in water seal
High water level in the flue gas scrubber
High gas pressure
High gas temperature
What is the situation of this vessel?
This vessel is not under command, but is making way through the water.
This vessel is aground.
This is a vessel constrained by her draft.
This vessel is not under command and stopped in the water.
Studies of shipboard emergencies show that many passengers do not read or remember safety information. As an officer, how can you best compensate for this fact?
In an emergency, repeatedly tell passengers what's happening, what's being done, and what they should do.
Post large, graphic safety signs conspicuously throughout the ship.
Prior to departure, provide passengers with a good safety video.
Ensure that printed safety information onboard is of the highest quality.
What are the duties of engine room ratings forming part of an engine room watch?
To note all machinery not functioning properly.
To clean and maintain dirty equipment.
To assist in the efficient and safe watchkeeping.
To verify the current operational parameters.
Which international convention deals with maritime safety and safety equipment onboard ro-ro passenger vessels?
SOLAS
STCW
ISM
MARPOL
Where is the normal position of the "Pivot Point" of the vessel when going ahead?
1/4 of vessel's length from the stern
1/3 of the vessel's length from the bow.
Amidships
Normally varies dependant on the speed ahead
What precaution should be taken when painting on car decks during cargo operations?
There must be an established means of communication between crew members and the duty officer
Spray paint guns must not be used
Cargo hold fan inlets must be closed near the paint area
Permission must be obtained from the harbour authority
The range of a transducer is 0-200 bar. The standard output signal is 4-20 mA. What is the output signal when the process value is 100 bar.
24 mA
4 mA
10 mA
12 mA
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.
What does ISPM stand for?
International Safety Procedures Manual
International Standards for Port Management
International Safety Policy Model
International Standards for Phytosanitary Measures (code)
When can a vessel load concentrates whose moisture content exceeds the Transportable Moisture Limit?
When proved to an Administration that there is adequate stability
When the distance to the next port is less than 200nm
When proved to an Administration that there is adequate structural integrity
When proved to an Administration that there is adequate stability as well as structural integrity
What is a hydraulic hand pump usually used for?
A hydraulic hand pump is usually used to slacken the windlass brake
A hydraulic hand pump is usually used in an emergency to open the hatch covers
A hydraulic hand pump is usually used to steer the ship from the Emergency position
A hydraulic hand pump is usually used to tighten G-nuts
One water fog applicator is required for each pair of breathing apparatus on board which type of ship?
Chemical tankers
Tankers
Passenger ships carrying more than 36 passengers
Passenger ships fitted with car decks
A U tube manometer is used to measure the pressure delivered by a ventilation fan. Following replacement of the fan by a larger unit with a higher delivery rate and pressure the liquid is blown out of the open end of the manometer. Which of the options given will allow the manometer to be used to measure the delivery pressure of the larger fan?
Connect the open end to the inlet trunking of the fan to measure the differential pressure rather than the delivery pressure.
Refill the manometer with a reduced the amount of liquid.
Refill the manometer with liquid with a higher density.
Refill the manometer with liquid with a higher viscosity
How to determine when the cool down is complete?
When from compressor to vapour manifold reach - 25 C.
When temperature monitor or liquid level gauges show a liquid presence in the bottom of the tank.
When vapour from HD compressor reach - 40 C.
When outlet from spray header reach - 10 C.
Many conventional reefer vessels are built with wooden gratings that support the cargo above the steel deck of the vessel. These gratings are typically carried on 50mm x 100mm wooden bearers. From the options given, select the most important consideration in relation to these wooden bearers.
The bearers must all be placed running in the same direction in the hatch.
Only wood of the quality of the existing bearers should be used.
The bearers should, as far as practicable, be placed clear of the vent holes in the gratings.
Only knot free, straight wood should be used.
Where is a "rose box" fitted on a General Cargo ship?
At the turn of the bilge
At the suction ends of cargo hold bilge pipes
In the engine room bilge system
At the engine room section of the hold bilge system
A large vessel develops a sudden sheer when it stops moving through the water, having been steaming through a shallow water channel for several miles. The sheer may be strong and unexpected and is due to what reason?
The shallow water reduces the effectiveness of the rudder and when the vessel stops any applied rudder will become suddenly more effective.
The vessel stopping shifts the pivot point forward and creates a turning moment and results in the ship swinging towards the bank.
The hydrodynamic interaction effects from the banks of the shallow water channel acts on the stern causing the vessel to sheer strongly
The large volume of water dragged behind the vessel continues to move forward and cause a strong turning moment on the stern of the vessel
A cargo pumproom must be mechanically ventilated. What is the minimum number of atmosphere changes per hour that such a system must achieve?
10 changes per hour.
There is no specified minimum number of changes, provided it is running continuously throughout any cargo operation.
30 changes per hour.
20 changes per hour.
Check the items that can be a possible threat
All alternatives
"Piracy, Hijacking and Smuggling"
Bombing and Sabotage
Cargo tampering and Stowaways
A consequence of operating a centrifugal pump with the discharge valve closed would be:
Relief valve will open
Pump will overheat
Motor will overheat
Motor overload will open
An inspection in the amidships area of the weather deck of a Panamax container vessel has revealed cracks in the hatch coamings. Which part of the vessel should now urgently be inspected.
Transverse bulkhead beneath the bridge front.
Longitudinals in the double bottom tanks in the amidships half length of the vessel.
Transverse bulkhead immediately aft of the engine room.
Stiffening in the forepeak tank at approximately water line level.
The electric motor on one of your centrifugal pumps has for a period of time gradually been running at lower and lower Amp-load. The pump is still supplying water, but the pressure is reduced. Which of the below alternatives is probably the reason?
The pump is running at lower speed due to short circuit in the electric motor.
Inner diameter of impeller is bigger due to cavitations, or outer diameter reduced by erosion.
The pump has been more effective because the suction strainer has been removed.
The pump has suction from many places at the same time.
It is the Masters responsibility to ensure that
All information reagrding the onboard training is given to the ship manager
safety equipment is not used during the training
All personnel participate in the training at the same time
concerned personnel carry out the on-board traing progamme effectively
In a diesel engine lubrication system the circulating pump pump normally takes suction from the oil sump tank. Where does the oil pass to directly after the pump?
Main thrust bearing.
Lube oil cooler.
The engine bearings.
The lub oil purifier.
Eavesdropping and phone taps are examples of which threat to information security?
Terrorism
Sabotage
Subversion
Espionage
A bulk cargo of steel coils is loaded and a number of the coils are noted by the Chief Officer to be rusted; what must the Master ensure?
Steel coils to be discharged
Clause the Bill of Lading with the reference numbers of the rusty coils and so make the Bill of Lading a "dirty" Bill.
No action needs to be taken.
Cargo temperatures measured on voyage
What is the correct understanding of the term "Isobar"?
An "Isobar" is the line showing the direction of the predicted path of a hurricane.
An "Isobar" is a line joining places of equal pressure.
An "Isobar" is a line joining places of equal temperature
An "Isobar" is the line of the cold front in a frontal depression
The circuit diagrams illustrate four different methods of wiring between a Pt 100 temperature sensor and its signal processing electronics. Which of the wiring methods gives the best measuring accuracy?
Figure 2
Figure 1
Figure 4
Figure 3
Where are the maximum Shearing Forces likely to occur on an oil tanker?
At the mid-length of the ship
At the bulkhead between empty and full tanks
At the forward collision bulkhead
At the tank lids
Records relating to breaches of security and changes in security level must be secured against unauthorized access and available for review by contracting governments.
TRUE
FALSE
.
Which is the "AFT BREAST LINE", in the figure?
The aft breast line is indicated by C, in the figure
The aft breast line is indicated by B, in the figure
The aft breast line is indicated by D, in the figure
The aft breast line is indicated by A, in the figure
A temperature control system is exhibiting hysteresis. Checks on all of the system components show that they are functioning correctly. Which of the changes/modifications given in the options is most likely to correct this problem?
Fit a valve positioner to the system.
Fit a new temperature sensor with a narrower temperature range.
Increase the pressure of the air supply to the controller.
Slacken off the control valve gland.
What would affect the proper functioning of a bridge fitting?
Pitting
A fully extended spindle
Lack of grease
Buckling
Which of the following statements best applies to the use of ordinary, commercial mobile telephones on board an oil tanker?
They can not be used in the hazardous areas on board at any time
They can be used anywhere on deck between sunset and sunrise
They can be used anywhere on deck with the Chief Officer's permission
They can not be used on deck if rain is falling or can be seen to be falling in the vicinity of the ship
Which controller must be tuned first in a cascade control system?
The secondary controller
Both at the same time
Any one of them
The primary controller
On a RoRo vessel, what must you ensure where the cap of a sounding pipe is flush with a ro-ro deck?
Sufficient vertical clearances between the sounding pipe cap and cargo lashings
Prohibit all cargo stowage around this area
Prohibit the stowage of general cargo around the area
Prohibit the stowage of wheeled cargo around the area
Which of the listed sensors is suitable for physial displacement?
Pt 500
Thermocouple
Thermistor
Strain gauge
Large slow speed diesel engines are usually of the crosshead type and have various arrangements to deliver lubricating oil directly to the crosshead bearings and guides to ensure adequate lubrication. Why are the crosshead bearings considered differently to the other bearing in this type of engine in respect of lubrication requirements?
The lubricating oil has further to travel to the crosshead bearing and so a separate arrangement is necessary
The crosshead bearing is more heavily loaded than other bearings in the engine so requires more oil to keep it cool.
The crosshead bearing is closer to the engine cylinder and therefore runs hotter.
The running surfaces oscillate relative to each other during operation rather than rotate and therefore full film hydrodynamic lubrication is not possible.
A ship experiences an interaction effect known as "Squat" when moving in shallow water. The amount of Squat is affected by the speed of the vessel through the water. If the speed through the water is HALVED what will be the change in the affect of "Squat"
The squat effect will also be halved.
There will be a significant change in the reduction of underkeel clearance, but the amount varies from ship to ship
There will be very little change to the effects of Squat.
The squat effect will be reduced to a quarter of its original value
Which component does this graphical symbol illustrate?
Level switch for centre-tank
Local level controller with indicator
Low carbon incinerator
Remote level controller with indicator
What is the required number of temperature indicating devices in cargo tanks?
One device in each tank.
At least two devices in each tank.
There is no requirement to number of devices.
At least three devices in each tank. One placed at the bottom of the tank, one in the middle of the tank and one near the top of the tank.
What will you do if you are helmsman and the OOW (officer on watch) gives you the order: “Port 20” and after a while the order: "Ease to 10"?
Turn the wheel until the rate of swing of the ship is 20 degrees per minute and then after the second order, reduce the wheel to make it swing at only 10 degrees per minute
Change the compass course to a new heading which is 20 degrees to port of original heading and then after the second command reduce it to only 10 degrees to port of original heading
Apply the wheel to alter the course 20 degrees to port and then after the second command change the heading a further 10 degrees
Apply 20 degrees of rudder towards port and then after the second command reduce the wheel to 10 degrees.
On a conventional reefer vessel fitted with wooden hatch boards (gratings) which of the operations given in the options is the most likely to cause the greatest damage to the hatch gratings?
Loading or discharging break bulk fruit in cartons.
Loading or discharging palletised fruit using pallet jacks.
Loading or discharging break bulk (loose) frozen lamb carcasses.
Loading or discharging motor cars.
What is the term used to refer to the valve that prevents backflow of water from the boiler to the feed water system?
Bottom-blow valve
Feed-check valve
Safety valve
Feed-stop valve
Which of the following cargoes can normally be loaded next to each other in the same space of a General Cargo vessel?
Drums of cement and bagged milk powder
Drums of cement and steel pipes
Pallets of pesticides and bagged grain
Rolls new carpets and drums lubricating oils
What would be considered as an acceptable range for the p-alkalinity in a low pressure auxiliary boiler?
0- 100 ppm CaCO3.
300 - 600 ppm CaCO3.
600 - 1000 ppm CaCO3.
100 - 300 ppm CaCO3.
What is the meaning of this symbol ?
Lifejacket
Lifebuoy with line
Lifebuoy with light and smoke
Lifebuoy with light
A pan on the galley stove containing oil catches fire, which of the following should NOT be used on this type of fire?
Cover pan with lid and switch of heat source.
Raise the alarm, close galley door and wait for the fire teams to arrive.
Cover pan with fire blanket and switch of heat source.
Use water extinguisher to put out the fire.
An excessive pressure drop across a lube oil strainer could indicate:
Any of the above.
That the relief valve is stuck open.
That the strainer is ok.
That the strainer needs cleaning.
该在线测试包含来自 CES 5.1 测试的 90 道随机问题，涉及您选择的主题。