DC Motors The speed of a series motor at no load is Infinity 2000 rpm 4000 rpm 1000 rpm Infinity 2000 rpm 4000 rpm 1000 rpm ANSWER DOWNLOAD EXAMIANS APP
DC Motors One D.C. motor drives another D.C. motor. The second D.C. motor when excited and driven None of these Does not run as a generator Runs as a generator Also runs as a motor comes to stop after sometime None of these Does not run as a generator Runs as a generator Also runs as a motor comes to stop after sometime ANSWER DOWNLOAD EXAMIANS APP
DC Motors In a dc motor, the brushes are shifted from the mechanical neutral plane in a direction opposite to the rotation to _____ Decrease speed Increase speed Produce flat characteristics Reduce sparking Decrease speed Increase speed Produce flat characteristics Reduce sparking ANSWER DOWNLOAD EXAMIANS APP
DC Motors In which of the following tests only one motor is required? Field's test Brake test Hopkinson's test Swinburne's test Field's test Brake test Hopkinson's test Swinburne's test ANSWER DOWNLOAD EXAMIANS APP
DC Motors The power mentioned on the name plate of an electric motor indicates The power drawn in kW The gross power The power drawn in kVA The output power available at the shaft The power drawn in kW The gross power The power drawn in kVA The output power available at the shaft ANSWER DOWNLOAD EXAMIANS APP
DC Motors If a dc motor is comnected across the AC supply it will Run at normal speed Run at lower speed Not run Burn due to heat produced in the field winding by eddy currents Run at normal speed Run at lower speed Not run Burn due to heat produced in the field winding by eddy currents ANSWER DOWNLOAD EXAMIANS APP
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