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Electrical Machines
The output power of any electrical motor is taken from the
Field.
Armature.
Motor frame.
Coupling mounted on the shaft.
Field.
Armature.
Motor frame.
Coupling mounted on the shaft.
Answer
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Related Question
Electrical Machines
A 3 - Φ, 4 pole IM is supplied from a 50 Hz source. Calculate rotor frequency when rotor runs 600 rpm?
35 Hz.
Can be determined.
20 Hz.
30 Hz.
35 Hz.
Can be determined.
20 Hz.
30 Hz.
Answer
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Electrical Machines
The rotor winding for a 3-phase slip-ring induction motor having delta-connected stator must be connected in
delta or star according to need.
None of these
star.
delta.
delta or star according to need.
None of these
star.
delta.
Answer
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Electrical Machines
An ideal DC generated is one that has _____________ voltage regulation.
negative.
low.
positive.
zero.
negative.
low.
positive.
zero.
Answer
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Electrical Machines
The field system of an alternator is usually excited
230 V AC.
250 / 250 V DC.
3 - Φ, 50 Hz and 400 V.
110 / 220 V AC.
230 V AC.
250 / 250 V DC.
3 - Φ, 50 Hz and 400 V.
110 / 220 V AC.
Answer
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Electrical Machines
Open circuit test on transformer gives
eddy current loss
both 1and 2
hysteresis loss
copper loss
eddy current loss
both 1and 2
hysteresis loss
copper loss
Answer
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