Important Multiple choice Questions Of Transformer for B.Tech First Year Students | Practice Objective Type Questions for B.tech students

Objective Type Question Of TRANSFORMER | Important Multiple choice Question Of Transformer for B.Tech First Year Students | Practice Objective Type Questions for B.tech students. If you feel its beneficial for you then don't forget to like,share & subscribe

1. In case of Power Transformer ,a Power transformers are designed to have maximum efficiency at

50% load
Full load
At No load
80% load

2. If the supply frequency of a transformer increases, the secondary output voltage of the transformer

Remain the same
Decrease
Increase
Any of the above

3. The secondary winding of which of the following transformers is always kept closed?

Step down transformer
Voltage transformer
Power transformer
Current transformer

4. The leakage flux in a transformer depends upon the value of

Frequency
Load current
Applied Voltage
Mutual Flux

5. The open-circuit test in a transformer is used to measure

Core loss
Total loss
Winding loss
Copper loss

6. Which of the following losses varies with the load in the transformer?

Both core & copper loss
Core loss
Copper loss
None of the above

7. A Transformer core are laminated in order to

Reduce hysteresis & eddy current loss
Reduce hysteresis loss
Copper loss
Minimize eddy current loss

8. A transformer transform

Voltage
Voltage & current
Frequency
Current

9. The essential condition for parallel operation of two single-phase transformer is that they should have the same

Polarity
Turn Ratio
KVA Rating
All of the above

10. The main purpose of performing short circuit test in a transformer is to measure its

Insulation Resistance
Core loss
Total loss
Copper loss