A variable displacement system of hydraulic drives consists of ().
Which of the following can be used in hydraulic transmission system?()
Dual electro-hydraulic steering units usually operate ().
After installing a new hydraulic pump in a system, what special attention should be given to the hydraulic system?()
One function provided by a hydraulic accumulator is to()
Air bubbles in a hydraulic governor can cause ()
The most common contaminate of governor hydraulic fluid is ().
The function of the hydraulic telemotor transmitter used in an electro-hydraulic steering gear system is to ().
Overheating of a hydraulic system may be a result of ().
Hydraulic control check value is generally used to () in the marine hydraulic mechanism.
The item()is not the advantage of the hydraulic winch.
The major cause of trouble in a mechanical-hydraulic governor is contamination of the hydraulic fluid by ()
A hydraulic accumulator is designed to().
If one hydraulic pump of an electro-hydraulic steering unit falls, the vessels steering can be initially and best maintained by using the ().
The major source of chemical contaminants in hydraulic fluid is ().
A hydraulic machine is one that uses () to do work.
水压力(hydraulic pressure)
Hydraulic machinery failures are commonly caused by contamination of the hydraulic fluid and ().
水力混合(hydraulic mixing)
The hydraulic () is used to control engine speed.
In the design of hydraulic piping and equipment consideration is given to minimize turbulence in the hydraulic fluid, as this will cause ().
If a hydraulic pump is overheating, the cause may be ().
Most hydraulic steering gears are fitted with relief valves which()
Hydraulically, servo-operated, automatic, change over valves, utilized in a two ram hydraulic steering gear, serve to .