DC Motors In dc machines fractional pitch winding is used To reduce the generated emf To reduce the sparking To improve cooling To increase the generated emf To reduce the generated emf To reduce the sparking To improve cooling To increase the generated emf ANSWER DOWNLOAD EXAMIANS APP
DC Motors A dc series motor is that which Can be started easily without load Has almost constant speed Has its field winding consisting of thick wire and less turns Has a poor torque Can be started easily without load Has almost constant speed Has its field winding consisting of thick wire and less turns Has a poor torque ANSWER DOWNLOAD EXAMIANS APP
DC Motors In case the conditions for maximum power for a D.C. motor are established, the efficiency of the motor will be 1 Anywhere between 75% and 90% Less than 50% Around 90% 1 Anywhere between 75% and 90% Less than 50% Around 90% ANSWER DOWNLOAD EXAMIANS APP
DC Motors At the instant of starting when a D.C. motor is put on supply, it behaves like A highly resistive circuit None of these A capacitive circuit A low resistance circuit A highly resistive circuit None of these A capacitive circuit A low resistance circuit ANSWER DOWNLOAD EXAMIANS APP
DC Motors The power mentioned on the name plate of an electric motor indicates 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 The power drawn in kW ANSWER DOWNLOAD EXAMIANS APP
DC Motors The speed of a _____ motor is practically constant. Differentially compounded Cumulatively compounded Series Shunt Differentially compounded Cumulatively compounded Series Shunt ANSWER DOWNLOAD EXAMIANS APP
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