In hydraulic transmission, use ___________to transfer force and motion. ()
A. solid
B. oil
C. gas
D. insulator
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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
In the composition of the hydraulic system, the hydraulic cylinder belongs to ().
A. power elements
B. actuators
C. control elements
D. transmission elements