Electrical Machines If s is the slip and f is the supply frequency of an induction motor, the frequency of rotor current is given by f / s. sf / 2. sf. s2. f / s. sf / 2. sf. s2. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Voltage regulation can be determined by which of the following? All of these ZPF method. Synchronous impedance method. MMf method. All of these ZPF method. Synchronous impedance method. MMf method. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which type motors are preferred for lathes? Squirrel Cage induction motor. Synchronous motor. DC shunt motors. Either A or B. Squirrel Cage induction motor. Synchronous motor. DC shunt motors. Either A or B. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What is/are the necessary conditions for voltage build up in self excited generator? All of these Poles should contain residual flux. Field winding should be properly connected to armature winding. Field winding resistance should be less than critical resistance. All of these Poles should contain residual flux. Field winding should be properly connected to armature winding. Field winding resistance should be less than critical resistance. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Field divertor method of speed control of a DC series motor gives speed above rated one due to reduction of None of above. Armature current. Line current. Field current. None of above. Armature current. Line current. Field current. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Rotor resistance speed control is used in slip ring induction motor. squirrel cage induction motor. synchronous motor. dc shunt motor. slip ring induction motor. squirrel cage induction motor. synchronous motor. dc shunt motor. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS