Electrical Machines Eb/V ratio of a DC motor is an indication of Running Torque. Effiency. Starting torque. Speed regulation. Running Torque. Effiency. Starting torque. Speed regulation. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In synchronous motor, the damper winding is generally used to provide starting torque only. reduce noise level only. reduce the eddy currents. prevent hunting and provide the starting torque. provide starting torque only. reduce noise level only. reduce the eddy currents. prevent hunting and provide the starting torque. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A dc shunt generator has full-load voltage regulation of 10% at rated speed of 1000 rpm. If it is now driven at 1250 rpm, then its voltage regulation at full load would remain unchanged be 12.5% be more than 10% be less than 10% remain unchanged be 12.5% be more than 10% be less than 10% ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC machine yoke offers mechanical protection to the machine flux path completion produce working flux both A and B mechanical protection to the machine flux path completion produce working flux both A and B ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a DC generator, the ripples in the direct emf generated are reduced by employing carbon brushes. graphite brushes. equalizer rings. commutator with large number of segments. carbon brushes. graphite brushes. equalizer rings. commutator with large number of segments. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Slip test is performed to determine All of these positive sequence reactance and negative sequence reactance slip direct axis reactance and quadrature axis reactance All of these positive sequence reactance and negative sequence reactance slip direct axis reactance and quadrature axis reactance ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS