Transformers MCQ - Electrician (Set-1) with Answers

Transformers MCQ - Electrician (Set-1) with Answers

51) Single turn primary of a current transformer has a turns ratio 10:1. Which one of the following is the primary current if the current measured in secondary is 2 amperes ?

Answer is:

20 ampere

52) As compared to the secondary of a step up transformer, the primary will have :

Answer is:

lower voltage and higher current

53) In a transformer, if the number of turns in the secondary winding is twice that in the primary winding, the secondary voltage will be :

Answer is:

twice the primary voltage

54) Which one of the following can be increased by using a step-up transformer ?

Answer is:

Voltage

55) In 1 kVA transformer the number of turns per volt is 8. What is the number of turns in high voltage side, If the voltage is 110 V ?

Answer is:

880

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