Computer Programming MCQs

5739 MCQs  (Page 72 of 574)

The motor used on small lathes is usually_________?
A. Universal motor
B. D.c. shunt motor
C. Single-phase capacitor run motor
D. 3-phase synchronous motor
For which of the applications a reluctance motor is preferred ?
A. Electric shavers
B. Refrigerators
C. Signalling and timing devices
D. Lifts and hosits
A single-phase induction motor is__________?
A. Inherently self-starting with high torque
B. Inherently self-starting with low torque
C. Inherently non-self-starting with low torque
D. Inherently non-self-starting with high torque
Which of the following motors is preferred for tape-recorders ?
A. Shaded pole motor
B. Hysteresis motor
C. Two value capacitor motor
D. Universal motor
A universal motor can run on___________?
A. c. only
B. D.c. only
C. Either a.c. or d.c.
D. None of the above
A schrage motor can run on___________?
A. Zero slip
B. Negative slip
C. Positive slip
D. All of the above
Which of the following motors will operate at high power factor ?
A. Shaped pole motor
B. Split phase motor
C. Capacitor start motor
D. Capacitor run motor
Single phase induction motor usually operates on__________?
A. 0.6 power factor lagging
B. 0.8 power factor lagging
C. 0.8 power factor leading
D. Unity power factor
In split-phase motor auxiliary winding is of___________?
A. Thick wire placed at the bottom of the slots
B. Thick wire placed at the top of the slots
C. Thin wire placed at the top of the slots
D. Thin wire placed at the bottom of the slots