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GENERATION AND TRANSMISSION
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1) Which is denoted by the letter qm in the formula 4.44 FNqm ?
Maximum flux
No of turns in primary
No of turns in secondary
Frequency
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Correct Answer: Maximum flux
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1) Which is denoted by the letter qm in the formula 4.44 FNqm ?
Maximum flux
No of turns in primary
No of turns in secondary
Frequency
2) What is the name of transformer if the transformation ratio (K) is more than 1?
Step down transformer
Unity ratio transformer
Step up transformer
Auto transformer
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Correct Answer: Step up transformer
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2) What is the name of transformer if the transformation ratio (K) is more than 1?
Step down transformer
Unity ratio transformer
Step up transformer
Auto transformer
3) Which factor the copper loss of a transformer depends?
Current
Voltage
Square of current
Square of voltage
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Correct Answer: Square of current
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3) Which factor the copper loss of a transformer depends?
Current
Voltage
Square of current
Square of voltage
4) Which is having high efficiency?
Transformer
Alternator
AC motor
DC motor
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Correct Answer: Transformer
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4) Which is having high efficiency?
Transformer
Alternator
AC motor
DC motor
5) Which material is used for transformer bushings?
PVC
Porcelain
Plastic
Baklite
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Correct Answer: Porcelain
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5) Which material is used for transformer bushings?
PVC
Porcelain
Plastic
Baklite
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