For a hydrulic motor , define volumetric, mechanical, and overall effiency.

Describe the basic difference between a DC motor and a DC generator.

What does the term bifilar mean?

True or False: Three-phase motors have low starting torque.

State the physical differences between a run and a start capacitor.

A rotating magnetic field inside a set of conductingwires is a simple description of a __ .a. DC generatorb. AC generatorc. voltage regulatord. none of the above

The alternating current produced by the AC generatoris rectified into DC, or direct current, through theuse of __ .a. transistorsb. electromagnetic relaysc. diodesd. capacitors

A. Incident sound waves in a dynamic pickup or microphone lead to the passage of AF current in the coil because- 1) The coil's motion within a magnetic field. 2) The motion within an electrostatic field.3) A DC voltage is applied to the coil. 4) Changes in the capacitive reactance across the coil.     B. An intermittent (as opposed to continuous) motor is one in which the shaft revolves in- 1) An incremental motor. 2) A stepper motor. 3) A selsyn. 4) A fractional motor.

In a brushless DC motor, the (rotor, stator) is a permanent magnet.