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AC 3 PHASE INDUCTION MOTOR
Set 2
Set 2
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Q13441
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Which speed of 3-phase induction motor runs?
A
Above synchronous speed
B
Below synchronous speed
C
Equal to synchronous speed
D
At slip speed
Q13442
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What is the value of slip at the time of starting of 3 phase induction motor?
A
Two
B
Three
C
One
D
Zero
Q13443
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Which is directly proportional to torque in 3 phase induction motor?
A
Rotor power factor
B
Stator frequency
C
Number of poles
D
Supply voltage
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What is phase angle difference between three windings in three phase squirrel cage induction motor?
A
360 Degree
B
90 Degree
C
120 Degree
D
30 Degree
Q13445
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Which material is used to wound outer cage rotor bars of a double squirrelcage induction motor?
A
Brass
B
Aluminium
C
Copper
D
Silicon steel
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