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Transformers

Transformers
When a 6 V battery is connected across the primary of a transformer with a turns ratio of 8, the secondary voltage is

0 V
6 V
0.75 V
48 V

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Transformers
Distribution transformers are generally designed for maximum efficiency around

Zero load
50% load
90% load
25% load

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Transformers
A transformer transfers electrical energy from primary to secondary usually with a change in ______

Power
Voltage
Frequency
Time period

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Transformers
Short circuit test of a transformer helps us to find its

Iron loss
Cu loss at no load
None of the listed here
Full load cu loss

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Transformers
Transformer breaths in when

load on it increases
None of these
load on it decreases
load remains constant

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Transformers
A common method of colling a power transformer is

Air blast cooling
Natural air cooling
Oil cooling
Any of the listed here

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MORE MCQ ON Transformers

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