單項選擇題

Leakage of hydraulic fluid from around the shaft of a hydraulic motor may be caused by（）

A.permanent loss of pump suction
B.worn shaft seals
C.high level in the oil sump
D.low motor RPM

你可能感興趣的試題

Air trapped in the hydraulic fluid of a steering system would be indicated by（）

A.an improper rudder response
B.hammering noises in the equipment or transmission lines
C.popping or sputtering noises
D.all the above

單項選擇題

How can the chance of contaminating hydraulic fluid be decreased when working on hydraulic system?（）

A.clean the fittings before they are disconnected
B.Place drip pans under leaky fittings
C.Seal any cracks in lines with Permatex
D.Coat all threads with graphite oil

无码高清视频|成人自拍视频|欧美成人午夜无码A片秀色直播|草美女视频网站|美女被操网站在线观看

Leakage of hydraulic fluid from around the shaft of a hydraulic motor may be caused by（）

你可能感興趣的試題

Air trapped in the hydraulic fluid of a steering system would be indicated by（）

How can the chance of contaminating hydraulic fluid be decreased when working on hydraulic system?（）