Question 13107 of 749 · Maryland Journeyperson Electrician Exam
A transformer delivers 48.5 kW to its load while its input is 50 kW. What is its efficiency?
Exactly one answer is correct.
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Correct answer to question 13107
- C: 97 %
Explanation
Efficiency = output / input = 48.5 / 50 = 0.97, or 97 %. The losses of 1.5 kW are 3 % of the input, not the efficiency.
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