Single Phase Induction Motors - Interview Questions | Exam2Win

Take a timed mock test specifically for Single Phase Induction Motors.

91. Which of the following statements regarding two value capacitor motor is incorrect ?

A. It is a reversing motor

B. It is preferred to permanent-split single-value capacitor motor where frequent reversals are required

C. It has low starting as well as rush�ing currents

D. It has high starting torque

Explanation:

92. Which of the following statements regarding repulsion-start induction motor is incorrect ?

A. It requires more maintenance of commutator and other mechanical devices

B. It makes quite a bit of noise on starting

C. In fractional horse power motors, it has replaced the capacitor motors

D. It is not easily reversed

Explanation:

93. The range of efficiency for shaded pole motors is

A. 95% to 99%

B. 80% to 90%

C. 50% to 75%

D. 5% to 35%

Explanation:

94. A.C. series motor as compared to D.C. series motor has

A. smaller brush width

B. less number of field turns

C. more number of armature turns

D. less air gap

Explanation:

95. Which of the following statements regarding a reluctance motor is incorrect ?

A. It cannot be reversed, ordinarily

B. It requires no D.C. field excitation for its operation

C. It is nothing else but a single-phase, salient pole synchronous-induction motor

D. Its squirrel cage-rotor is of unsym-metrical magnetic construction in order to vary reluctance path bet�ween stator and rotor

Explanation: