GENERATION AND TRANSMISSION - Quiz

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

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

5) Which material is used for transformer bushings?

PVC Porcelain Plastic Baklite