The absolute pressure of a hydraulic pump inlet is 0.07MPa, so the vacuum degree of the inlet is ______ MPa, and the gauge pressure is ______ MPa. (The Atmospheric pressure is 0.1MPa)
查看答案
In hydraulic transmission, use ___________to transfer force and motion. ()
A. solid
B. oil
C. gas
D. insulator
What are the most important two parameters in hydraulic transmission? ()
A. pressure and flow rate
B. pressure and load
C. pressure and speed
D. flow rate and speed
Hydraulic transmission relies on the hydrostatic pressure in the sealed volume to transfer force, such as ().
A. ten thousand ton hydraulic press
B. centrifugal pump
C. hydraulic turbine
D. hydraulic torque converter
Compared with mechanical transmission, advantages of hydraulic transmission includes ().
A. high efficiency
B. low machining accuracy required
C. accurate transmission ratio can be obtained
D. smooth movement