DC Motors One D.C. motor drives another D.C. motor. The second D.C. motor when excited and driven Also runs as a motor comes to stop after sometime Runs as a generator Does not run as a generator None of these Also runs as a motor comes to stop after sometime Runs as a generator Does not run as a generator None of these ANSWER DOWNLOAD EXAMIANS APP
DC Motors The iron loss in dc motor depends on Both flux and speed Flux only Speed only None of the listed here Both flux and speed Flux only Speed only None of the listed here ANSWER DOWNLOAD EXAMIANS APP
DC Motors The power mentioned on the name plate of an electric motor indicates The power drawn in kVA The power drawn in kW The output power available at the shaft The gross power The power drawn in kVA The power drawn in kW The output power available at the shaft The gross power 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 Hopkinson's test Field test Brake test Swinburne's test Hopkinson's test Field test Brake test ANSWER DOWNLOAD EXAMIANS APP
DC Motors A series motor will over speed when The armature circuit is opened. The field is opened Load is removed The load is increase The armature circuit is opened. The field is opened Load is removed The load is increase 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
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