Electrical Machines Alternator operates on the principle of electromagnetic induction. mutual induction. self induction. self or mutual induction. electromagnetic induction. mutual induction. self induction. self or mutual induction. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The synchronous speed of an induction motor will be increased by speed can not be increased. increasing of frequency. increasing number of poles. decreasing of frequency. speed can not be increased. increasing of frequency. increasing number of poles. decreasing of frequency. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Dummy coils are used for All of these mechanical balancing. increasing efficiency. reducing armature reaction. All of these mechanical balancing. increasing efficiency. reducing armature reaction. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In Ward-Leonard system, the lower limit of the speed imposed by Armature resistance. Field resistance. None of above. Residual magnetism of the generator. Armature resistance. Field resistance. None of above. Residual magnetism of the generator. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which motor used in Lathe machine? D.C. cumulative compound motor. D.C . series motor. D.C. shunt motor. None of these D.C. cumulative compound motor. D.C . series motor. D.C. shunt motor. None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The torque angle, in a synchronous motor, is the angle between the rotating stator flux and rotor flux. None of these magnetizing electric current and back emf. the supply voltage and the back emf. the rotating stator flux and rotor flux. None of these magnetizing electric current and back emf. the supply voltage and the back emf. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS