單項(xiàng)選擇題

Sluggish response or action of the hydraulic actuators may be a result of （）.

A.insufficient load
B.excessively high oil viscosity
C.relief-valve pressure setting too high
D.reservoir level being maintained two inches above normal

你可能感興趣的試題

單項(xiàng)選擇題

A knocking sound from one cylinder of an operating air compressor indicates （）.

A.a defective or broken high pressure un-loader
B.a loose valve plate
C.excessive overload
D.no compression

單項(xiàng)選擇題

Rotation of the steering wheel on the navigation bridge initiates oil pressure being applied to the steering gear rams by （）.

A.regulating the oil flow with the six-way valve
B.moving the automatic differential valve
C.moving the receiving tele-motor which regulates the two-way valve
D.varying the angle of a tilting box or eccentricity of a floating ring

99色精品-9色在线-99色在线-99色视频 国产欧美日产一区二区三区_亚洲精品亚洲人成在线观看_四虎在线精品永久观看_免费一级a一片久久精

Sluggish response or action of the hydraulic actuators may be a result of （）.

你可能感興趣的試題

A knocking sound from one cylinder of an operating air compressor indicates （）.

Rotation of the steering wheel on the navigation bridge initiates oil pressure being applied to the steering gear rams by （）.

99色精品-9色在线-99色在线-99色视频国产欧美日产一区二区三区_亚洲精品亚洲人成在线观看_四虎在线精品永久观看_免费一级a一片久久精