轮机英语
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[单项选择]“Before disconnecting the oil pipe, would you flush the oil retained in the pipe?” asked the oil barge owner ()
A. by using of fresh water
B. with compressed air
C. by using of sea water
D. with chemical compound
[单项选择]“Stand by an engine” means ()
A. “prepare to stop the engine”
B. “assemble an engine on its bedplate”
C. “make an engine ready for starting”
D. “dismantle an engine”
[单项选择]() are commonly used in mechanical-hydraulic governor(调速器) to sense engine speeds.
A. Bulbs
B. Bulks
C. Flyweights
D. Flywheels
[单项选择]() is not properly set thus causing either advanced or retarded firing.
A. A piston
B. A fuel injection pump
C. A feed water pump
D. A lube oil pump
[单项选择]() fuel oils () lubricating oils require treatment before passing to the engine.
A. Both;and
B. Neither;nor
C. Either;or
D. Both;or
[单项选择]() may be the first possible cause which makes the engine to lose power or slow down when it is running.
A. Hot bearing
B. Starting valves
C. Unequal distribution of load
D. Excessive crankshaft clearance
[单项选择]() pistons have low inertia and high coefficient of thermal expansion.
A. Cast iron
B. Cast steel
C. Forged steel
D. Aluminum
[单项选择]A ()is the foundation of the engine, without the support of which the shaft alignment in particular, and engine structure as a whole, would inevitably be lost.
A. Frame
B. Bedplate
C. Cylinder
D. Liner
[单项选择]() allows for expansion and water make up in the water cooling system.
A. A top tank
B. A head tank
C. A head valve
D. A drain tank
[单项选择]() is used for cylinder and cylinder head, the salt water is used for cooling the lubricating oil, the fresh water in the coolers and the charging air in the air cooler.
A. The fuel oil
B. The lube oil
C. The sea water
D. The fresh water
[单项选择]() rods are not in proper condition so that too much fuel is supplied to the corresponding cylinder.
A. Piston
B. Sounding
C. Regulating
D. Connecting
[单项选择]() is sometimes used for piston cooling since leaks into the crankcase would not cause problems.
A. Diesel oil
B. Hydraulic oil
C. Lube oil
D. Mineral oil
[单项选择]() of an engine crankshaft can be detected by measuring deflections of crank webs for each unit of the engine.
A. Misalignment
B. Length
C. Strength
D. Stresses
[单项选择]() of the A-frames there is a strong cast iron frame called the scavenging air box.
A. At the top
B. At the bottom
C. In the top
D. In the bottom
[单项选择]() are generally formed in the frame of the both in-line and Vee engines to give maintenance access to the crankshaft main and connecting rod large end bearing.
A. Doors
B. Aspirate gauzer
C. Coupling
D. Blind
[单项选择]() is the removal of exhaust gases by blowing in fresh air.
A. Gas exchange
B. Charging
C. Scavenging
D. Supercharging
[单项选择]() the cylinder will contain a great weight of air and will be capable of burning a great quantity of fuel.
A. At the beginning of the compression stroke
B. At the beginning of the suction stroke
C. At the end of the working stroke
D. At the end of the exhaust stroke
[单项选择]() device is provided to prevent starting air from being admitted to the cylinder before the reversing is completed.
A. An automatic
B. A transmission
C. A self-regulating
D. An interlocking
[单项选择]() the supercharge pressure is, () power an engine develops.
A. The higher;the more
B. Higher;more
C. Higher;little
D. The higher;the less
[单项选择]() should not undertake any task which will interfere with the supervision duties relating to the main machinery and associated equipment.
A. The watch keeping personnel
B. The chief engineer
C. The person on a bunker barge
D. Any of the above
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