Electrical Machines Consider a separately excited DC motor. If the field current is increased while the armature terminal voltage is held constant, then speed of the motor None of these. Remains same. Decrease. Increase. None of these. Remains same. Decrease. Increase. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Lap winding is prefered for which type of machines? high current and low voltage high current and high voltage low current and low voltage low current and high voltage high current and low voltage high current and high voltage low current and low voltage low current and high voltage ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Two mechanically coupled alternators deliver power at 50 Hz and 60 Hz respectively. Highest speed of alternator is 3600 rpm. 600 rpm. 3000 rpm. 500 rpm. 3600 rpm. 600 rpm. 3000 rpm. 500 rpm. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Dynamic braking is very effective for separately excited motors. shunt motors. series motors. differential compound motors. separately excited motors. shunt motors. series motors. differential compound motors. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The size of inter poles is small as compared to main poles. What is the reason? All of these In order to get saturated. In order to not to get saturated. In order to get more flux. All of these In order to get saturated. In order to not to get saturated. In order to get more flux. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines An induction motor having 8 poles runs at 727.5 rpm. If the supply frequency is 50Hz, the emf in the rotor will have a frequency of 48.5Hz 1.5Hz 51.5Hz 2.5Hz 48.5Hz 1.5Hz 51.5Hz 2.5Hz ANSWER DOWNLOAD EXAMIANS APP
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