Single phase induction motors

title="The rotor slots, in an induction motor, are usually not quite parallel to the shaft because it" class="read-more button" href="https://exam.pscnotes.com/mcq/the-rotor-slots-in-an-induction-motor-are-usually-not-quite-parallel-to-the-shaft-because-it/#more-46062">Detailed SolutionThe rotor slots, in an induction motor, are usually not quite parallel to the shaft because it

82. Which of the following single-phase motors is suitable for timing and control purposes ?

Reluctance motor
Series motor
Repulsion motor
Universal motor

Detailed SolutionWhich of

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the following single-phase motors is suitable for timing and control purposes ?

83. The motor used on small lathes is usually

universal motor
D.
shunt motor C. single-phase capacitor run motor
3-phase synchronous motor

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small lathes is usually" class="read-more button" href="https://exam.pscnotes.com/mcq/the-motor-used-on-small-lathes-is-usually/#more-45795">Detailed SolutionThe motor used on small lathes is usually

84. Which of the following motors has two separate windings on the motor ?

Repulsion motor
Repulsion induction motor
Repulsion start induction run motor
None of the above

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?" class="read-more button" href="https://exam.pscnotes.com/mcq/which-of-the-following-motors-has-two-separate-windings-on-the-motor/#more-45649">Detailed SolutionWhich of the following motors has two separate windings on the motor ?

85. As hysteresis motors are free from mechanical and magnetic vibrations therefore these are considered as suitable for

fans
blowers
sound equipment
mixer grinders

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are considered as suitable
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for" class="read-more button" href="https://exam.pscnotes.com/mcq/as-hysteresis-motors-are-free-from-mechanical-and-magnetic-vibrations-therefore-these-are-considered-as-suitable-for/#more-45479">Detailed SolutionAs hysteresis motors are free from mechanical and magnetic vibrations therefore these are considered as suitable for

86. Which of the following motors is used for unity power factor ?

Hysteresis motor
Schrage motor
Universal motor
Reluctance motor

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class="read-more button" href="https://exam.pscnotes.com/mcq/which-of-the-following-motors-is-used-for-unity-power-factor/#more-44713">Detailed SolutionWhich of the following motors is used for unity power factor ?

87. In a shaded pole motor, the shading coil usually consist of

a single turn of heavy wire which is in parallel with running winding
a multilayer fine gauge copper wire in parallel with running winding
none of the above

Detailed SolutionIn a shaded pole motor, the shading coil usually consist of

88. In repulsion motor, zero torque is developed when

brush axis is 45° electrical to field axis
brush axis coincides with the field axis
brush axis is 90° electrical to field axis
both (B) and (C)

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button" href="https://exam.pscnotes.com/mcq/in-repulsion-motor-zero-torque-is-developed-when/#more-44469">Detailed SolutionIn repulsion motor, zero torque is developed when

89. Which of the following statements regarding single-phase induction motoris correct ?

It requires only one winding
It can rotate in one direction only
It is self-starting
It is not self-starting

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of the following statements regarding single-phase induction motoris correct ?" class="read-more button" href="https://exam.pscnotes.com/mcq/which-of-the-following-statements-regarding-single-phase-induction-motoris-correct/#more-44368">Detailed SolutionWhich of the following statements regarding single-phase induction motoris correct ?

90. Torque developed by a single phase induction motor at starting is

pulsating
uniform
none of the above
nil

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is" class="read-more button" href="https://exam.pscnotes.com/mcq/torque-developed-by-a-single-phase-induction-motor-at-starting-is/#more-44213">Detailed SolutionTorque developed by a single phase induction motor at starting is
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