Electrical Machines Dynamic braking is employed to brake None of these both 1 and 2 non reversing drive reversing drive None of these both 1 and 2 non reversing drive reversing drive ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Equalizer rings are used in which of the followings? both 1 and 2 lap winding None of these wave winding both 1 and 2 lap winding None of these wave winding ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 4-pole DC generator runs at 1500 rpm. The frequency of current in the armature winding is: Zero Hz. 50 Hz. 100 Hz. 25 Hz. Zero Hz. 50 Hz. 100 Hz. 25 Hz. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In Ward-Leonard method of speed control, the direction of rotation of motor is reversed usually reversing the connection of the generator field terminal. generator armature terminal. motor field terminal. motor armature terminal. generator field terminal. generator armature terminal. motor field terminal. motor armature terminal. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Skewing of the rotor in a 3 - Φ squirrel cage induction motor reduces noise, parasitic torque, starting torque and pull out torque. noise and parasitic torque, but increase starting and pull-out torque. noise and pullout torque, but increase parasitic and starting torque. noise, parasitic and starting torque, but increase pull out torque. noise, parasitic torque, starting torque and pull out torque. noise and parasitic torque, but increase starting and pull-out torque. noise and pullout torque, but increase parasitic and starting torque. noise, parasitic and starting torque, but increase pull out torque. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the load current and flux of a DC motor are held constant and voltage applied across it armature is increased by 5%, the speed of the motor will Reduce by 5%. Remain unchanged. Increase by 5%. Depends on other factor. Reduce by 5%. Remain unchanged. Increase by 5%. Depends on other factor. ANSWER DOWNLOAD EXAMIANS APP
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