Universal Motor Multiple Choice Questions and Answers
1. The speed of universal motor is generally reduced by using
A.Gear trains
B.V-belts
C.Brakes
D.Chains
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A.Gear trains
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2. The direction of rotation of universal motor can be reversed the by reversing the flow of current through
A.Armature winding
B.Field winding
C.Either armature winding or field winding
D.None of the above
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3. The speed control of universal motor used for sewing machines is by
A.Friction
B.Varying the resistance
C.Tapping the field
D.Centrifugal mechanism
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4. In case of high speed universal motor which of the following needs more attention
A.End play
B.Air gap
C.Insulationin rotor
D.Balancing motor
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5. A universal motor can run on
A.A.C. only
B.D.C. only
C.Either A.C. or D.C.
D.None of the above
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