A cylinder displaces a 13 kN load at 0.85 m/s. If hydraulic fluid enters the cylinder at a rate of 45 L/min and at a pressure of 40 MPa, what is the total efficiency of the system?()
A. 25%
B. 42%
C. 63%
D. 37%
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The total efficiency of a hydraulic motor is usually equal to ().
A. volumetric efficiency × mechanical efficiency
B. volumetric efficiency × hydraulic efficiency
C. hydraulic efficiency × mechanical efficiency
D. volumetric efficiency × mechanical efficiency × hydraulic efficiency
What is the function of hydraulic motor?1. hydraulic motor converts hydraulic oil under pressure into torque and angular displacement2. hydraulic motor converts hydraulic oil under pressure into force and linear displacement3. hydraulic motor converts hydraulic energy into mechanical energy4. hydraulic motor converts mechanical energy into hydraulic energy
A. 1 and 4
B. 1 and 3
C. 2 and 3
D. 2 and 4
Low-torque high-speed motors are used in
A. cranes
B. winches
C. fans
D. all the above
Which motor causes heavy loads due to its usage in order to move at constant lower speeds?
A. Low-torque high-speed motors
B. High-torque low-speed motors
C. both a and b
D. none of the above