Electrical Machines Which of the following induction motor has the highest starting torque? None of these Squirrel cage induction motor. Same in both induction motors. Slip ring induction motor. None of these Squirrel cage induction motor. Same in both induction motors. Slip ring induction motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The demagnetising component of armature reaction in a DC generator reduces inter poles flux density. results in sparking trouble. reduces generator emf. increases armature speed. reduces inter poles flux density. results in sparking trouble. reduces generator emf. increases armature speed. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A single phase transformer has specifications as 250 KVA, 11000 V/415 V, 50 Hz. What are the values of primary and secondary currents? primary = 301 A, secondary = 22.7 A primary = 602 A, secondary = 22.7 A primary = 11.4 A, secondary = 301 A primary = 22.7 A, secondary = 602.4 A primary = 301 A, secondary = 22.7 A primary = 602 A, secondary = 22.7 A primary = 11.4 A, secondary = 301 A primary = 22.7 A, secondary = 602.4 A ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Ratio of starting torque to full load torque is minimum in Differential compound motor. Cumulative compound motor. Shunt motor. Series motor. Differential compound motor. Cumulative compound motor. Shunt motor. Series motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a synchronous motor when the rotor speed exceeds the synchronous speed during hunting the damper bars develop induction motor torque. the damper bars develop induction generator torque. negative sequence currents are generated. the damper bars develop synchronous motor torque. the damper bars develop induction motor torque. the damper bars develop induction generator torque. negative sequence currents are generated. the damper bars develop synchronous motor torque. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A load of 900 lbs is to be raised with a lift car weighting 855 lbs at a speed of 110 feet per minute, the over balance being 40 % and percentage efficiency 45 %. Find the horse power of the motor without counterweight 180. 150. 170. 160. 180. 150. 170. 160. ANSWER DOWNLOAD EXAMIANS APP
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