An isolation transformer has primary to secondary turns ratio of
An isolation transformer has primary to secondary turns ratio of: 1:1 1:2 2:1 Any of above Correct answer: 1. 1:1
Read moreElectrical Machines
In Electrical Machines the hysteresis effect results in
In Electrical Machines the hysteresis effect results in: Power loss Reduction of efficiency Raising temperature of machine All of above
Read moreThe capacitor start, capacitor run induction motor acts as a true 2-phase motor at which of the following condition
The capacitor start, capacitor run induction motor acts as a true 2-phase motor at which of the following condition: No
Read moreA DC series motor will over speed for which of the following condition
A DC series motor will over speed for which of the following condition: When field is opened When load is
Read moreThe flux in the core of single-phase transformer is
The flux in core of single phase transformer is: Purely rotating one Purely alternating one Partly alternating and partly rotating
Read moreCertain transformer has full-load copper losses of 500 W. What is the value of the copper loss at half load
Certain transformer has full-load copper losses of 500 W. What is value of copper loss at half load: 62.5 W
Read moreWhat is the full load primary current of a 3000/150 V, 30 kVA transformer
What is the full load primary current of a 3000/150 V, 30 kVA transformer: 2 A 5 A 10 A
Read moreThe overall efficiency of a DC generator is maximum when its variable loss equals
The overall efficiency of a DC generator is maximum when its variable loss equals: Stray losses Iron losses Constant losses
Read moreTransformer MCQ Part 9
Transformer MCQ Questions The iron core in transformer provides _____________ path to main flux The iron core in transformer provides
Read moreTransformer MCQ Part 8
Transformer MCQ Questions The efficiency of two identical transformers under load conditions can be determined by which of the following
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