Electrical Machines For a dc machine shunt resistance and armature resistance values are high and high high and low low and high low and low high and high high and low low and high low and low ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Star - delta method of starting of motor is not possible in case of low horse power motor. single phase induction motor. high speed motor. high torque motor. low horse power motor. single phase induction motor. high speed motor. high torque motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When a synchronous motor is running at synchronous speed, the damper winding produces both 1 and 2. eddy current torque. damping torqe. no torque. both 1 and 2. eddy current torque. damping torqe. no torque. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A dc shunt generator, when commissioned after a major repair of the field system, failed to build Up voltage. It was because field winding was wrongly connected field system lost residual magnetism there was a break in the armature circuit field resistance was higher than critical resistance field winding was wrongly connected field system lost residual magnetism there was a break in the armature circuit field resistance was higher than critical resistance ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In induction motors, there is large decrease in maximum power factor when the dispersion coefficient is ________________. remains same. kept constant to certain value. decreased. increased. remains same. kept constant to certain value. decreased. increased. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a synchronous motor, damper windings are provided on None of these stator frame. pole faces. rotor shaft. None of these stator frame. pole faces. rotor shaft. ANSWER DOWNLOAD EXAMIANS APP
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