An open-circuit test on a transformer is conducted primarily to measure________?
Acopper loss
Btotal loss
Cnone of the above
Defficiency
Einsulation resistance
Fcore loss
Correct answer
F. core loss
Explanation
The correct answer is core loss.
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Study 132 Electrical Engineering MCQs with correct answers and explanations.
Correct answer
F. core loss
Explanation
The correct answer is core loss.
Correct answer
C. copper loss becomes high in proportion to the output
Explanation
The correct answer is copper loss becomes high in proportion to the output.
Correct answer
A. Low voltage winding
Explanation
The correct answer is Low voltage winding.
Correct answer
A. magnetising current and loss
Explanation
The correct answer is magnetising current and loss.
Correct answer
B. 150°C
Explanation
The correct answer is 150°C.
Correct answer
A. low reactance
Explanation
The correct answer is low reactance.
Correct answer
C. Frequency
Explanation
The correct answer is Frequency.
Correct answer
A. to take care of the expansion and contraction of transformer oil due to variation of temperature of sur-roundings
Explanation
The correct answer is to take care of the expansion and contraction of transformer oil due to variation of temperature of sur-roundings.
Correct answer
B. decrease the reluctance of the magnetic path
Explanation
The correct answer is decrease the reluctance of the magnetic path.
Correct answer
C. Sandwich type
Explanation
The correct answer is Sandwich type.