DC injection braking is used on _____.

a. the stationary windings of AC motors
b. compound DC motors where a slower stopping method is acceptable
c. the rotors of shunt motors
d. the rotors of series motors


a. the stationary windings of AC motors

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The four main components of an alternator rotor are the pole pieces, the shaft, the field coil, and the ____.

A. stator B. slip rings C. rectifier D. frame

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What aspect of a critical lift plan always distinguishes it from a standard lift plan?

a. The load radius b. The maximum weight of the load c. The fact that it is always a written document d. The type of process for developing the plan

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Valves that open and close rapidly under the control of electronic circuits are:

A) Pulse-modulated valves. B) Cross-charged expansion valves. C) Electronic expansion valves. D) Step motor valves.

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The typical RWD drive shaft rotates how many times faster than the wheels?

A) Two B) Three C) One D) It rotates at the same speed.

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