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Single Phase Motors

Single Phase Motors
The electric motor used in portable drills is

Capacitor run motor
Hysteresis motor
Universal motor
Repulsion motor

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Single Phase Motors
If starting winding of a single-phase induction motor is left in the circuit, it will

run slower
draw excessive current and overheat
run faster
spark at light loads

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Single Phase Motors
The direction of rotation of an hysteresis motor is determined by

position of shaded pole with respect to main pole
none of these
interchanging the supply leads
retentivity of the rotor material

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Single Phase Motors
A resistance split phase induction motor is used for ______

High inertia loads
Low inertia loads
Very high inertia loads
None of the listed here

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Single Phase Motors
Which motor is normally free from mechanical and magnetic vibrations?

Universal motor
Split phase motor
Hysteresis motor
Shaded pole motor

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Single Phase Motors
The capacitor start, capacitor run motor is used in thode applications where _____

None of the listed here
Silence is important
High starting torque is required
Noisy operation is not important

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