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
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
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.
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.