Computer Programming MCQs

5739 MCQs  (Page 73 of 574)

In a two value capacitor motor, the capacitor used for running purposes is_______________?
A. Air capacitor
B. Paper spaced oil filled type
C. Ceramic type
D. A.c. electrolytic type
In A.C. series motor compensating winding is employed to_____________?
A. Reduce the effects of armature reaction
B. Increase the torque
C. Reduce sparking at the brushes
D. None of the above
Which of the following motors can be run on AC. as well as D.C. supply ?
A. Universal motor
B. Repulsion motor
C. Synchronous motor
D. Reluctance motor
Which of the following motors has highest starting torque ?
A. Repulsion motor
B. Shaped pole motor
C. Capacitor-start motor
D. Split-phase motor
Which of the following single-phase induction motors is generally used in time phonographs ?
A. Resistance start
B. Capacitor start capacitor run
C. Shaded pole
D. Universal
In case of a shaded pole motor the direction of rotation of the motor is__________?
A. From main pole to shaded pole
B. From shaded pole to main pole
C. Either of the above depending on voltage
D. Either of the above depending on power factor
The repulsion-start induction-run motor is used because of___________?
A. Good power factor
B. High efficiency
C. Minimum cost
D. High starting torque