Electrical Machines Capacitor in split phase induction motor is used to improve the power factor. improve the starting torque. reduce the harmonics. start the motor. improve the power factor. improve the starting torque. reduce the harmonics. start the motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC machine torque is proportional to which of the following? both A and B armature current(Ia) None of these flux(φ) both A and B armature current(Ia) None of these flux(φ) ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines An electric motor with constant output power will have a torque speed characteristics in the form of a Circle about the origin. Straight line through the origin. Straight line parallel to the speed axis. Rectangular hyperbola Circle about the origin. Straight line through the origin. Straight line parallel to the speed axis. Rectangular hyperbola ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The low voltage winding of a 400/230 V single phase 50 Hz transformer is to be connected to keep the magnetization current at the same level in both the cases the voltage at 25 Hz should be 115 V 230 V 65 V 460 V 115 V 230 V 65 V 460 V ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC generator, armature reaction refers to what? Effect of armature flux on the load. Effect of field flux on the armature flux. None of these Effect of armature flux on the main field flux. Effect of armature flux on the load. Effect of field flux on the armature flux. None of these Effect of armature flux on the main field flux. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A large series motor is never started without some mechanical on it because otherwise it will Produce sparking at brushes. Open fuse or circuit breaker. Draw too much current. Develop excessive speed and damage itself. Produce sparking at brushes. Open fuse or circuit breaker. Draw too much current. Develop excessive speed and damage itself. ANSWER DOWNLOAD EXAMIANS APP
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