Question

Which of the following is NOT true about hydraulic motors?

a) A motor uses more flow than it theoretically should
b) A hydraulic motor delivers less torque than it theoretically should
c) Hydraulic motors extract energy from a fluid and convert it to mechanical energy
d) In vane motors, vanes are held in contact with the cam ring by springs or by being pressure-loaded
e) None of the above

Answer 1

Hydraulic motors deliver less torque than their theoretical maximum due to factors such as friction and inefficiencies in the system.

Step-by-step explanation:

The correct answer is b) A hydraulic motor delivers less torque than it theoretically should. In a hydraulic motor, energy is extracted from a fluid and converted into mechanical energy to generate torque and rotational motion.

However, due to factors such as friction and inefficiencies in the system, hydraulic motors typically deliver less torque than their theoretical maximum. For example, in vane motors, the vanes are held in contact with the cam ring by springs or by being pressure-loaded, allowing them to smoothly transmit torque. None of the other options are true about hydraulic motors.