Electrical Machines Synchronous reactance of an alternator represents armature reactance and leakage reactance a reactance operating at synchronous speed All of these field winding reactance armature reactance and leakage reactance a reactance operating at synchronous speed All of these field winding reactance ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The frame of an induction motor is made of silicon steel. stainless steel. aluminium. closed grained cast iron. silicon steel. stainless steel. aluminium. closed grained cast iron. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The supply voltage to an induction motor is reduced by 10%. By what percentage, approximately, will the maximum torque decrease? 10% 19% 5% 40% 10% 19% 5% 40% ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For larger units high torque it is preferred to use Universal motor. DC shunt motor. Partial motor. Slip induction motor. Universal motor. DC shunt motor. Partial motor. Slip induction motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When the armature current of 5 Amp is flowing through the dc motor the torque produced is 47 Nm. Keeping the speed constant if the armature current is increased to 7 amp, calculate the new torque. Assume losses to be constant. 65.8 Nm. 27.73 Nm . 74 Nm. 38.5 Nm. 65.8 Nm. 27.73 Nm . 74 Nm. 38.5 Nm. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For same HP rating and full load speed which of following motor has poor starting torque? Differently compounded. Series. Shunt. Cummulative compound. Differently compounded. Series. Shunt. Cummulative compound. ANSWER DOWNLOAD EXAMIANS APP
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