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Transformers
Distribution transformers are generally designed for maximum efficiency around
Zero load
25% load
90% load
50% load
Zero load
25% load
90% load
50% load
Answer
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Related Question
Transformers
In a certain transformer, the input power to the primary is 120 W. If 8.5 W are lost to the winding resistance, what is the output power to the load, neglecting any other issues?
0 W
14.1 W
1,020 W
111.5 W
0 W
14.1 W
1,020 W
111.5 W
Answer
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Transformers
Sumpner's test is conducted on transformer to determine
None of the listed here
Temperature
All day efficiency
Stray losses
None of the listed here
Temperature
All day efficiency
Stray losses
Answer
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Transformers
The primary winding of a power transformer should always be
fused
open
shorted
switched
fused
open
shorted
switched
Answer
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Transformers
The noise produced by a transformer is termed as
hum
ringing
zoom
buzz
hum
ringing
zoom
buzz
Answer
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Transformers
Natural oil cooling is used for transformers upto a rating of
1000 kVA
3000 kVA
250 kVA
500 kVA
1000 kVA
3000 kVA
250 kVA
500 kVA
Answer
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