DC Motors In the dc motor the iron losses occur in Armature Brushes Field Commutator Armature Brushes Field Commutator ANSWER DOWNLOAD EXAMIANS APP
DC Motors The power mentioned on the name plate of an electric motor indicates The power drawn in kW The power drawn in kVA The gross power The output power available at the shaft The power drawn in kW The power drawn in kVA The gross power The output power available at the shaft ANSWER DOWNLOAD EXAMIANS APP
DC Motors In D.C. machines the residual magnetism is of the order of 10 to 15 percent 50 to 75 percent 20 to 25 percent 2 to 3 percent 10 to 15 percent 50 to 75 percent 20 to 25 percent 2 to 3 percent ANSWER DOWNLOAD EXAMIANS APP
DC Motors Which one of the following is not the function of pole shoes in a D.C. machine? To spread out flux for better uniformity To support the field coils To reduce the reluctance of the magnetic path To reduce eddy current loss To spread out flux for better uniformity To support the field coils To reduce the reluctance of the magnetic path To reduce eddy current loss ANSWER DOWNLOAD EXAMIANS APP
DC Motors By flux control method of speed control of a dc shunt motor, we can obtain speeds. Below the normal speed only None of the listed here Above the normal speed only Above as well as below the normal speed Below the normal speed only None of the listed here Above the normal speed only Above as well as below the normal speed ANSWER DOWNLOAD EXAMIANS APP
DC Motors D.C. series motors are used Where constant operating speed is needed Where load is constant Where load changes frequently None of these Where constant operating speed is needed Where load is constant Where load changes frequently None of these ANSWER DOWNLOAD EXAMIANS APP
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