A.hour
B.day
C.week
D.month
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A.Engine is hard to start
B.Engine misses
C.Surges at governed RPM
D.Coolant temperature is too low
A.regulating the level of corrosion inhibitor in the primary cooling system
B.the level of the freshwater expansion tank
C.varying the engine load to meet temperature requirements
D.the operation of the thermostatic valve
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最新試題
In using reduction gears to obtain efficient propeller speeds, ().
Electrically operated safety devices on auxiliary diesel engines function to stop the engine by ().
Proper filtering and straining of fuel oil is important because the ().
If the water level dropped rapidly in the expansion tank of a closed diesel engine cooling water system, you should suspect a ().
Engine protection by means of an alarm or shutdown control can be obtained with devices that are sensitive to ().