轮机英语
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[单项选择]() provide the water to the pistons.
A. Pneumatic pipes
B. Hydraulic pipes
C. Telescopic pipes
D. Operating gas pipes
[单项选择]() is a source of power by which the diesel engine may operate.
A. Water energy
B. Electrical energy
C. Chemical energy
D. Heat energy
[单项选择]() is made of a boss with separated blades mounted into it.
A. A variable pitch propeller
B. A variable pitch nut
C. A fixed pitch parallel
D. A fixed pitch screw
[单项选择]() for the camshaft gear train is taken from a spur gear which for a six cylinder engine is at the coupling end.
A. The driven gear
B. The drive
C. The grease
D. The lubricating oil
[单项选择]() providing lubricating films, oil used in marine diesel engines have to remove heat from oil cooled piston.
A. Except for
B. Beside
C. Except
D. In addition to
[单项选择]() is fully floating in both connecting rod small end and the piston skirt.
A. The piston rod
B. The cross head pin
C. The gudgeon pin
D. The crank-pin
[单项选择]() is arranged for cleaning the lubricating oil in the system and clean oil can be provided from a storage tank.
A. A filter
B. A centrifuge
C. A distiller
D. A generator
[单项选择]() or air venting arrangement is fitted to the fuel supply passage.
A. An air pump
B. A compressor
C. A fuel pump
D. A priming
[单项选择]() neutralizes the acid conditions and() cleanses the rings and grooves.
A. The detergency;the alkalinity
B. The alkalinity;the detergency
C. The inhabitant;the water
D. The additives;the distilled water
[单项选择]() at the end of the distribution pipe ensures that adequate pressure is maintained by the pump.
A. A relief valve
B. An alarm
C. A pressure gauge
D. A non-maim valve
[单项选择]() are fitted in the exhaust system and facilitate charge removal and scavenging in each cylinder.
A. Diffusers
B. Compressors
C. Steam boilers
D. Soot blowers
[单项选择]() is a precaution which contributes to avoiding trouble under normal operating conditions.
A. Constant inspection
B. Keeping constant load
C. Remaining constant temperature
D. varying speed
[单项选择]() is used for washing and drinking.
A. The ballast system
B. The salt water system
C. The bilge system
D. The domestic system
[单项选择]() are mounted on and bolted to the bed-plate cross girders.
A. The crankshaft
B. The crankcase
C. The guide-ways
D. The frames
[单项选择]() water is more expensive than fresh water It has high specific heat and low viscosity.
A. Distilled
B. Distilling
C. Boiling
D. Boiled
[单项选择]() is secured by means of side-chock bolts and end-chock bolts.
A. The bedplate
B. The column
C. The main bearing
D. The double bottom
[单项选择]() the engines, the diesel engine is() used engine on board.
A. Between;more commonly
B. Among;the most commonly
C. Between;not more commonly
D. Among;not the most commonly
[单项选择]() are formed by abrasive particles entering the bearing and scoring the shaft.
A. Grooves
B. Recesses
C. Ridges
D. Nips
[单项选择]() is usually driven by the engine camshaft and supplies pilot air to the cylinder air start valve.
A. An air receiver
B. An operating valve
C. An automatic valve
D. An air distributor
[单项选择]() in what position the engine stops there will always be at least one of the cylinders with its starting air valve open to admit compressed air to start the engine.
A. Because
B. Owing to
C. For
D. No matter
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