A.the power stroke
B.the compression stroke
C.low load operation only
D.periods of standby
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A.475 RPM
B.950 RPM
C.1900 RPM
D.2400 RPM
A.suction pressure regulator
B.thermostatic bypass valve
C.sea water temperature
D.water level in the expansion tank
A.operated manually once an hour
B.operated until the engine has started
C.placed into operation only at maximum load
D.adjustable to meet lubrication requirements
A.remove suspended and precipitated solids from the boiler water
B.completely drain the boiler in an emergency situation
C.prevent hardened scale deposits in the water drum
D.remove floating impurities from the oily water surface
A.around the engine
B.around the cooler
C.to the expansion tank
D.overboard
最新試題
In diesel engines, the four basic events (intake, compression, power and exhaust) are performed once in （）.
A diesel engine is operating with excessively high exhaust temperatures at all cylindersTo correct this condition, you should FIRST （）.
Electrically operated safety devices on auxiliary diesel engines function to stop the engine by （）.
If the main engine of an unattended engine room shuts down automatically, it will be indicated by an alarm （）.
In a simple mechanical governor, the （）.
The ability of the governor to prevent fluctuations in engine speed is termed （）.
Engine protection by means of an alarm or shutdown control can be obtained with devices that are sensitive to （）.
Diesel engine control can be obtained by the bridge （）.
The main purpose of the piston oil scraper rings is to （）.
Lube oil filters remove contaminants more efficiently if the oil being filtered is （）.