轮机英语天津八套海事局八套试题库.docx
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轮机英语天津八套海事局八套试题库.docx
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轮机英语天津八套海事局八套试题库
天津八套与海事局八套题库
(一)
1.The officer in charge of the engineering watch shall ensure that at all times bridge orders relating to changes in_____of operation are immediately implemented.
A. fore and aft
B. ahead or astern
C. speed or direction
D. up or down
2.Small oil spills on deck can be prevented from contaminating any waters by_____.
A.plugging all scuppers and drains
B.thoroughly draining all bunkering hoses
C.regularly emptying all drip pans
D.placing floating booms around the ship
3.The main purpose of warming up the main engine is_____.
A. to reduce heat stress
B. to reduce low temperature corrosion
C. to improve firing and starting performance
D. for fuel saving
4.In order to reduce the chance of detentions ships should routinely verify the following except for_____.
A.fan damper operation is smooth and operates through the full range of open to close.
B.fan damper locking pins are free to be removed without significant effort.
C.fan damper operating handles are free to move without significant effort.
D.fan damper are properly coated with white paint.
5.The purpose of the_____in a vapour compression cycle is to accept the hot, high-pressure gas from the compressor and cool it to remove first the superheat and then the latent heat.
A.expansion valve
B.condenser
C.compressor
D.evaporator
6.The energy consumed by an AC motor, as strictly reactive power, is_____.
A.used to do mechanical work
B.lost in doing work to turn the motor itself
C.used to establish the magnetic field of the motor
D.lost as heat generated by the windings.
7.A diesel engine will lose power if fuel injection occurs too early because the_____.
A.fuel will not be properly atomized in the cylinder
B.maximum fuel expansion will occur on the compression stroke
C.ignition will be delayed due to low ignition temperature
D.fuel will ignite before top dead center
8.The designed_____is 20 tons per day, but the fresh water generator can only distill 15 tons at present.
A.power
B.capacity
C.displacement
D.weight
9.The depth of the ship below the waterline measured vertically to the lowest part of the hull is called_____.
A.tonnage
B.trim
C.draft
D.lean
10.The hydraulic system of a deck winch has been drained, flushed, and refilled with hydraulic fluid. An erratic knocking noise from the hydraulic motor when the winch is started would indicate_____.
A.clogged suction line fluid filters
B.air trapped in the system
C.the fluid level in the reservoir is too high
D.abrasive matter circulating in the oil
11.As a duty engineer, as soon as you hear the fire emergency signal, you should ensure that the_____.
A.ring buoys are thrown overboard
B.fire pumps are started
C.engines are stopped
D.life preservers have been issued to everyone
12.Which of the following problems could develop due to the accumulation of oil vapors in the crankcase of a diesel engine?
A.Reduced lubrication
B.Poor fuel economy
C.Combustion knock
D.Crankcase explosion
13.All details of fuel bunkering, ballast handling, tank cleaning or slop disposal must be entered in the_____.
A.ballast log
B.muster log
C.engine room log
D.oil record book
14.The cetane rating of diesel fuel is an indication of the_____.
A.rate of fuel consumption
B.ignition quality of the fuel
C.calorific value of the fuel
D.lash point of the fuel
15.In the voyage, when carrying out abandon ship drill,_____should be tested every time.
A.M.E.emergency operation
B.main/auxiliary steering gear changing
C.air/oil emergency shut-down
D.the emergency lighting system for muster and abandon ship
16.The Master should call_____for permission to use chemical agents in response to oil pollution into the sea.
A. the port state
B. the coastal state 沿岸国
C. the flag state
D. the shipping company
17._____assists to emulsify oil and water into an even emulsion mixture for a fine atomizing of an incinerator
A.An intermittent vibration
B.An intermittent agitation
C.A continuous agitation 连续的搅拌
D.A continuous vibration
18.Combustion knock will most likely occur as a result of using a fuel with_____.
A. a high cetane number
B. low ignition quality
C. low ignition delay
D. a high volatility
19.Which of the following is operated from the main engine room console on an automated vessel?
A.Shaft alley door and fixed CO2 release
B.Lube oil pump and distilling plant
C.Distilling plant and shaft alley door
D.Fire pump and lube oil pump
20._____means the level for which minimum appropriate protective security measures shall be maintained at all times,
threats and exchanging such information with appropriate Contracting Governments.
A.Security level 4
B.Security level 3
C.Security level 2
D.Security level 1
21.Each cylinder has one starting valve which is usually opened by air pressure and closed by_____.
A.spring force
B.new joints
C.nuts and bolts
D.sealing rings
22._____is provided to alternators, in the event of prime mover failure to ensure that the alternator does not act as a motor.
A.Frequency meter
B.Reverse current protection
C.Reverse power protection
D.Synchronizing device
23.To avoid water "carry-over" in a boiler, you should_____.
A.increase the feed water alkalinity
B.raise the boiler water level
C.increase the steam output
D.remove the scum
24.The successful operation of any engine or machine and its trouble free life depends on_____which involves the formation and maintenance of a lubricating oil film between the moving parts.
A.effective cooling
B.effective lubrication
C.maintenance
D.the support
25.Fuses placed in series with a thermal trip-type circuit breaker are used for_____.
A.short duration surge protection
B.short-circuit protection
C.sustained overload protection
D.time-delay protection
26.The master may suspend the schedule of hours of rest in the following circumstances EXCEPT_____.
A.Cargo on board is in danger
B.The seafarer wants to have extra pay额外的报酬 by working overtime
C.Help another ship in distress.危难
D.The safety of the ship is threatened. 威胁
27.In a radial piston pump, reversal and control of fluid flow are accomplished by moving the_____.
A. radial plunger
B. cylinder body
C. central valve
D. floating ring
28.The main generators are connected to_____.
A. main switch boards
B. distribution boards
C. emergency switch boards
D. section boards
29.A class 'B' fire would most likely occur in the_____.
A.electric fresh water transfer pump
B.engine room bilge
C.breathing compartment
D.main switchboard
30.The most common diesel engine fuel system problems are caused by_____.
A.excessive vibration
B.broken fuel lines
C.incorrect adjustments
D.dirty fuel
31._____of the controllable pitch propeller enables the blades to be moved to change the pitch angle.
A.A hunting gear system
B.An internal mechanism
C.An interlock device
D.An external mechanism
32.In a refrigeration system, foaming of the crankcase oil may cause the_____.
A. expansion valve to overfeed.
B. crankcase drains to plug
C. water regulating valve to fail
D. compressor to knock
33.Enhanced procedures concerning the exercise of_____have been developed to allow intervention in the case of deficiencies deemed to pose a danger to persons, property or the environment.
A.flag state control
B.safety inspection
C.fire and boat drill
D.port state control
34.Which of the following problems will occur if a disk-type centrifugal lube oil purifier is not properly primed prior to admitting oil flow to the bowl?
A.Contamination of the lube oil by emulsification will result.
B.Oil will discharge from the heavy phase discharge port and be wasted.
C.The lube oil will not be subjected to the proper centrifugal force.
D.The lube oil will overheat and flash.
35.According to STCW CODE, an engineer officer must possess which of the following functions?
A.Radio communications
B.Cargo handling and stowage
C.Navigation
D.Controlling the operation of the ship and care for persons on board.
36.In a ordinary cargo crane,_____is fitted to rotate the crane.
A.the hoisting motor
B.the fan motor
C.the luffing motor
D.the slewing motor
37.Which of the following components are used to convert alternating current produced in the generator windings to direct current?
A.Commutator and crushes
B.Armature and equalizer
C.Field and exciter
D.Rotor and interpoles
38.Oil mist detectors are usually used on board to detect oil mist density within_____.
A.the engine crankcase
B.fuel tanks
C.drain tanks
D.the engine scavenge boxes.
39.A diesel engine could fail to start because of_____.
A.excessive cranking speed
B.low exhaust back pressure
C.floating exhaust valves
D.incorrect injection timing
40.To prevent excessive_____in the transverse girders, the tie bolts are positioned as close to the center of the crankshaft as possible.
A.bending moments
B.surface tensions
C.thermal loads
D.thermal stresses
41.Before reassembling any machinery, you should_____.
A.apply a heavy coat of oil to all mating surfaces.
B.replace all bearings regardless of length of service
C.coat all parts with ale mite grease
D.clean any corroded surfaces and file all burrs smooth
42.The diesel engine is similar to the gasoline engine in that_____
A.both of them are ignited by compressed air
B.both of them are the forms of external combustion engines
C.the power is developed by the piston in the cylinder
D.both of them have spark plugs
43.Which of the following statements represents the main difference between an relay and a contactor?
A.A relay is series connected and a contactor is parallel connected.
B.Contactors are made from silver and relays are made from copper.
C.C
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