A.Maintains a constant head on the system
B.Reduces the likelihood of air or steam pockets formation
C.Provides a low pressure point for the addition of makeup cooling water
D.All of the above
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A.brass
B.copper
C.iron
D.monel metal or stainless steel
A.reduce water temperature
B.reduce water turbulence
C.provide an air cushion
D.allow for an increase in water volume as the engine warms up
A.changing filter elements would not interrupt engine operation
B.filtering occurs twice in each pass of oil through the system
C.clogging will not occur
D.dropping pressure is half of that through a single filter unit
A.decrease in maximum cylinder pressure
B.increase in ignition lag
C.decrease in fuel consumption per horsepower-hour
D.decrease in exhaust manifold pressure
A.low voltage trip to trip
B.reverse power trip to trip
C.damage to windings
D.excessive exhaust temperatures
最新試題
The function of diesel engine piston compression rings is to （）.
Maximum horsepower of a diesel engine is attained （）.
What causes diesel fuel to be ignited in the cylinder of an operating diesel engine?（）
Lube oil filters remove contaminants more efficiently if the oil being filtered is （）.
Proper filtering and straining of fuel oil is important because the （）.
Lube oil cannot be efficiently filtered if its （）.
If the main engine of an unattended engine room shuts down automatically, it will be indicated by an alarm （）.
When fuel oil has seriously contaminated a diesel engine lubricating oil, you should （）.
If the water level dropped rapidly in the expansion tank of a closed diesel engine cooling water system, you should suspect a （）.
A diesel engine is operating with excessively high exhaust temperatures at all cylindersTo correct this condition, you should FIRST （）.