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Electrical Machines
In a 12 pole triplex lap wound DC armature, each conductor can carry current of 100 A. The rated current of this armature is
2400 A.
600 A.
1200 A.
3600 A.
2400 A.
600 A.
1200 A.
3600 A.
Answer
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Related Question
Electrical Machines
If the temperature of armature resistance is increased, the speed of a series motor would
not change.
decrease.
None of above.
increase.
not change.
decrease.
None of above.
increase.
Answer
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Electrical Machines
What is the speed of stator rotating magnetic field with respect to rotor rotating magnetic field?
Slip speed
Zero
None of these
Synchronous speed
Slip speed
Zero
None of these
Synchronous speed
Answer
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Electrical Machines
Which of the following motor is not suitable for frequent starting and stopping?
All of these
Resistance split phase motor
Capacitor split phase motor
Capacitor run motor
All of these
Resistance split phase motor
Capacitor split phase motor
Capacitor run motor
Answer
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Electrical Machines
Mechanical energy is supplied to DC generator at the rate of 4200 J / s. The generator delivers 32.2 Amp at 120 V. What is the percentage efficiency of the generator?
212 V.
210 V.
201.02 V.
205 V.
212 V.
210 V.
201.02 V.
205 V.
Answer
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Electrical Machines
A 10 kW, 230 V, dc shunt machine has four terminals brought out through four leads. For this machine
armature winding has thick leads whereas field winding has thin leads
both the windings have thin leads
both the windings have thick leads
armature winding has thin leads whereas field winding has thick leads
armature winding has thick leads whereas field winding has thin leads
both the windings have thin leads
both the windings have thick leads
armature winding has thin leads whereas field winding has thick leads
Answer
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