Hopkinson’s test of D.C. machines is conducted at _______________(a) No-load(b) Part load(c) Full-load(d) OverloadThis question was posed to me during an internship interview.Origin of the question is Hopkinson’s Test topic in chapter Efficiency and Testing of DC Machines

Hopkinson’s test of D.C. machines is conducted at _______________(a)

1.	Hopkinson’s test of D.C. machines is conducted at _______________(a) No-load(b) Part load(c) Full-load(d) OverloadThis question was posed to me during an internship interview.Origin of the question is Hopkinson’s Test topic in chapter Efficiency and Testing of DC Machines
Answer» Right ANSWER is (c) Full-LOAD The best I can explain: Unlike Swinburne’s test Hopkinson’s test is carried out at loaded condition. Thus, we get STRAY load loss also, while finding out the efficiency. Hence, efficiency is not over-estimated LIKE Swinburne’s test.

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Hopkinson’s test of D.C. machines is conducted at _______________(a) No-load(b) Part load(c) Full-load(d) OverloadThis question was posed to me during an internship interview.Origin of the question is Hopkinson’s Test topic in chapter Efficiency and Testing of DC Machines

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