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Electrical Machines
In a 1-phase induction motor, if the forward torque slip is S, what is the backward torque slip?
1/S
2-S
S
1-S
1/S
2-S
S
1-S
Answer
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Related Question
Electrical Machines
Value of specific electric loading of Induction motor is in the range of
40 - 400 ampere conductor / metre.
5000 - 45000 ampere conductor / metre.
30000 - 100000 ampere conductor / metre.
400 - 4000 ampere conductor / metre.
40 - 400 ampere conductor / metre.
5000 - 45000 ampere conductor / metre.
30000 - 100000 ampere conductor / metre.
400 - 4000 ampere conductor / metre.
Answer
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Electrical Machines
No load saturation characteristics are plotted between
no load voltage and field current
short circuit current and field current
short circuit current and armature current
no load voltage and armature current
no load voltage and field current
short circuit current and field current
short circuit current and armature current
no load voltage and armature current
Answer
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Electrical Machines
Which of the following is/are not a self starting motor?
both 1 and 2
1-phase induction motor
3-phase induction motor
None of these
both 1 and 2
1-phase induction motor
3-phase induction motor
None of these
Answer
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Electrical Machines
Type of single phase motor having highest power factor at full load is
capacitor start.
split phase.
capacitor run.
shaded pole type.
capacitor start.
split phase.
capacitor run.
shaded pole type.
Answer
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Electrical Machines
Induction motor operation depends on
stationary magnetic field.
None of these
either of these.
rotating magnetic field.
stationary magnetic field.
None of these
either of these.
rotating magnetic field.
Answer
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