Hydraulics Flashcards
When energised, a de-pressurising solenoid….
Stops hydraulic pressure
When is a hydraulic de-pressurising valve energised?
When selected off
A hydraulic pump is a constant-displacement type if?
It delivers a uniform rate of fluid flow
An automatic cut-out valve will
Prevent hydraulic lock forming
In an open-centre hydraulic system, system pressure is provided?
Only when the selector valve is set to ON
One reason for fittings an accumulator in a hydraulic system is to?
Absorb pressure surges
The purpose of an NRV is to?
Direct fluid to the hydraulic actuator
What is the unit which transforms hydraulic pressure into rotary motion?
A hydraulic motor
When the regulator diverts fluid from the system to the reservoir, the output of a constant displacement pump is changed so that?
Pressure and the volume remain the same
When bleeding a system,in general you bleed from the?
Nearest position at the lowest part of the system
