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 output power available at the shaft The gross power The power drawn in kW The power drawn in kVA The output power available at the shaft The gross power ANSWER DOWNLOAD EXAMIANS APP
DC Motors The commutating winding is basically used in a dc machine None of the listed here To reduce armature reaction To control the speed of machine To improve commutation None of the listed here To reduce armature reaction To control the speed of machine To improve commutation ANSWER DOWNLOAD EXAMIANS APP
DC Motors The speed of a series motor at no load is Infinity 4000 rpm 2000 rpm 1000 rpm Infinity 4000 rpm 2000 rpm 1000 rpm ANSWER DOWNLOAD EXAMIANS APP
DC Motors By putting controller resistance in series with the armature of a dc motor, we can obtain speeds None of the listed here Below the normal speed only Above the normal speed only Above as well as below the normal speed None of the listed here Below the normal speed only Above the normal speed only Above as well as below the normal speed ANSWER DOWNLOAD EXAMIANS APP
DC Motors If a D.C. motor is to be selected for conveyors, which rriotor would be preferred ? Series motor Shunt motor Differentially compound motor Cumulative compound motor Series motor Shunt motor Differentially compound motor Cumulative compound motor ANSWER DOWNLOAD EXAMIANS APP
DC Motors Carbon brushes are preferable to copper brushes because _____ They have lower resistance They reduce sparking They have longer life They reduce armature reaction They have lower resistance They reduce sparking They have longer life They reduce armature reaction ANSWER DOWNLOAD EXAMIANS APP
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