单项选择题
If a radial piston hydraulic pump fails to deliver rated fluid volume, the cause can be （）.
A.contaminated fluid
B.pitted thrust rings
C.worn pintle bearings
D.obstructed suctions passage
点击查看答案&解析
相关考题
-
单项选择题
To maintain design discharge pressure from a centrifugal pump, the design clearance must be maintained between the （）.
A.shaft and impeller
B.motor and pump shaft
C.casing and impeller wearing rings
D.lantern ring and impeller -
单项选择题
In a radial piston pump, reversal and control of fluid flow are accomplished by moving the （）.
A.central valve
B.radial plunger
C.floating ring
D.cylinder body -
单项选择题
Increasing the moisture content of conditioned air is known as （）.
A.moisturizing
B.dehumidification
C.dampening
D.humidification
