單項(xiàng)選擇題On a diesel engine equipped with a hydraulic speed control governor, hunting in many cases can be corrected by adjusting the ()

A.accumulator spring compressor
B.balance piston
C.compensating needle valve
D.proportional piston


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1.單項(xiàng)選擇題Which of the following adjustments is always required whenever the diesel engine governor oil has been drained and renewed?()

A.speed droop
B.compensation
C.idle speed setting
D.load limit control

2.單項(xiàng)選擇題Which of the following statements represents an advantage of an electromagnetic clutch?()

A.Large misalignments can be tolerated between the shaft and engine coupling
B.Slip is held to a minimum when reversing shaft rotation
C.Engine torsion vibrations to the driven shaft are eliminated
D.It aids in maintaining power factor

4.單項(xiàng)選擇題An individual injection pump is designed for variable beginning and constant ending of injectionFor diesel engines operating at constant speeds, the start of injection will()

A.advance as the load increases
B.retard as the load increase
C.remain unchanged regardless
D.always occur at top dead center

5.單項(xiàng)選擇題The purpose of the compensating adjustment used in a diesel engine hydraulic governor is to ()

A.compensate for low oil level
B.increase governor promptness
C.prevent governor hunting
D.limit engine load