Electrical Machines Armature resistance control method is used for the _______ ? both 1 and 2 None of these above rated speed below rated speed both 1 and 2 None of these above rated speed below rated speed ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following pairs is/are correct? closed slot----- leakage flux is high open slot----- leakage flux is less semi closed slot-----leakage flux is moderate All of these closed slot----- leakage flux is high open slot----- leakage flux is less semi closed slot-----leakage flux is moderate All of these 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. increased. decreased. remains same. kept constant to certain value. increased. decreased. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The self induced emf in the coil undergoing commutation is called the statically induced voltage. None of these dynamically induced voltage. reactance voltage. statically induced voltage. None of these dynamically induced voltage. reactance voltage. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The application that need frequent starting and stopping is jaw crushers. blowers. lifts and hoists. paper mills. jaw crushers. blowers. lifts and hoists. paper mills. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Neglecting all losses, the developed torque (T) of DC separately excited motor, operating under constant terminal voltage is reduced to its output power (P) as T2 ∝ P3. T ∝ √P. T ∝ P. T is independent of P. T2 ∝ P3. T ∝ √P. T ∝ P. T is independent of P. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS