AC MACHINES
1.Which one of the following types of motors is most suitable for a computer printer drive?
a) Reluctance motor
b) Hysteresis motor
c) Shaded pole motor
d) Stepper motor
ans. d
2. A 3-phase, 3 stack, variable reluctance step motor has 20 poles on each rotor and stator stack. The step angle of this step motor is
a) 3 degrees
b) 6 degrees
c) 9 degrees
d) 18 degrees
ans. b
a) Reluctance motor
b) Hysteresis motor
c) Shaded pole motor
d) Stepper motor
ans. d
2. A 3-phase, 3 stack, variable reluctance step motor has 20 poles on each rotor and stator stack. The step angle of this step motor is
a) 3 degrees
b) 6 degrees
c) 9 degrees
d) 18 degrees
ans. b
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