单项选择题
Which of the listed governor characteristics will greatly affect the load sharing relationship between paralleled diesel generators?()
A.Sensitivity
B.Power
C.Speed droop
D.Compensation
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A faulty thermostatic bypass valve, in a diesel engine cooling system, can result in ()
A.excessive time required for warming-up
B.excessive freshwater corrosion
C.scale formation on the saltwater side
D.saltwater mixing with the freshwater -
单项选择题
Movement of the pump control rack in a fuel injection system using individual plunger-type pumps ()
A.changes the position of the fuel inlet ports
B.changes the length of the pump stroke
C.varies the quantity of fuel delivered
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单项选择题
During extremely cold weather, while starting an engine, it turns too slowly and fails to startThis problem is most likely the result of ()
A.high fuel oil viscosity
B.low fuel oil temperature
C.high lube oil viscosity
D.energized glow plugs
