Two of supply terminals to a 3 - ÃŽÂ¦ induction motor get interchanged during re-connection after normal maintenance. When switched on the supply, the motor will

Electrical Machines
Two of supply terminals to a 3 - ÃŽÂ¦ induction motor get interchanged during re-connection after normal maintenance. When switched on the supply, the motor will

get heated and damaged.

rotate in the same direction as before maintenance.

rotate in direction opposite to that before maintenance.

not start at all.

get heated and damaged.

rotate in the same direction as before maintenance.

rotate in direction opposite to that before maintenance.

not start at all.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
The armature of a DC motor is laminated to reduce

friction and windage loss.

eddy current loss.

copper loss.

hysteresis loss.

friction and windage loss.

eddy current loss.

copper loss.

hysteresis loss.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
Flashing of DC generator means

None of these

increasing flux density by providing extra ampere-turns in field.

neutralization of residual magnetism.

creation of residual magnetism by a DC source.

None of these

increasing flux density by providing extra ampere-turns in field.

neutralization of residual magnetism.

creation of residual magnetism by a DC source.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
Short circuiting is caused in the armature winding due to

grounding of two or more turns of the same coil.

any of above.

failure of insulation between two commutator bars.

failure of insulation between two turns of coil.

grounding of two or more turns of the same coil.

any of above.

failure of insulation between two commutator bars.

failure of insulation between two turns of coil.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
A DC Motor is driving a constant load torque having armature resistance of 0.25 Ω and armature current of 60 A having connected to a voltage of 230 V. Now a resistance of 1 ohm is added into the armature circuit. The ratio of their speed will be

1.24.

0.62.

0.72.

0.25.

1.24.

0.62.

0.72.

0.25.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
Two windings provided on the stator of 1-phase induction motor, one main winding and the other auxiliary winding are connected

in series

through inductive coupling

either of these depending on the design of the motor

in parallel

in series

through inductive coupling

either of these depending on the design of the motor

in parallel

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines

Electrical Machines Two of supply terminals to a 3 - ÃŽÂ¦ induction motor get interchanged during re-connection after normal maintenance. When switched on the supply, the motor will

Electrical Machines The armature of a DC motor is laminated to reduce

Electrical Machines Flashing of DC generator means

Electrical Machines Short circuiting is caused in the armature winding due to

Electrical Machines A DC Motor is driving a constant load torque having armature resistance of 0.25 Ω and armature current of 60 A having connected to a voltage of 230 V. Now a resistance of 1 ohm is added into the armature circuit. The ratio of their speed will be

Electrical Machines Two windings provided on the stator of 1-phase induction motor, one main winding and the other auxiliary winding are connected

Electrical Machines
Two of supply terminals to a 3 - ÃŽÂ¦ induction motor get interchanged during re-connection after normal maintenance. When switched on the supply, the motor will

Electrical Machines
The armature of a DC motor is laminated to reduce

Electrical Machines
Flashing of DC generator means

Electrical Machines
Short circuiting is caused in the armature winding due to

Electrical Machines
A DC Motor is driving a constant load torque having armature resistance of 0.25 Ω and armature current of 60 A having connected to a voltage of 230 V. Now a resistance of 1 ohm is added into the armature circuit. The ratio of their speed will be

Electrical Machines
Two windings provided on the stator of 1-phase induction motor, one main winding and the other auxiliary winding are connected