DC Motors The speed of a series motor at no load is 1000 rpm Infinity 4000 rpm 2000 rpm 1000 rpm Infinity 4000 rpm 2000 rpm ANSWER DOWNLOAD EXAMIANS APP
DC Motors In which of the following tests only one motor is required? Brake test Swinburne's test Hopkinson's test Field's test Brake test Swinburne's test Hopkinson's test Field's test ANSWER DOWNLOAD EXAMIANS APP
DC Motors The speed of a dc motor is inversely proportional to flux per pole inversely proportional to applied voltage Directly proportional to flux per pole None of the listed here inversely proportional to flux per pole inversely proportional to applied voltage Directly proportional to flux per pole None of the listed here ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which of the following tests will be suitable for testing two similar D.C. series motors of large capacity? Swinburne's test Field test Hopkinson's test Brake test Swinburne's test Field test Hopkinson's test Brake test ANSWER DOWNLOAD EXAMIANS APP
DC Motors In a dc machines the residual magnetism is of the order of 10 to 15 percent 50 to 75 percent 2 to 3 percent 20 to 25 percent 10 to 15 percent 50 to 75 percent 2 to 3 percent 20 to 25 percent ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which of the following loss in a D.C. generator varies significantly with the load current? Field copper loss Windage loss Armature copper loss None of these Field copper loss Windage loss Armature copper loss None of these ANSWER DOWNLOAD EXAMIANS APP
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