Electrical Machines In an induction motor, the no-load slip is generally equal to less than 1 %. 4 %. 1.5 %. zero. less than 1 %. 4 %. 1.5 %. zero. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 4-pole dc generator runs at 1500 rpm. The frequencyof current in the armature winding is 100 Hz 0 Hz 50 Hz 25 Hz 100 Hz 0 Hz 50 Hz 25 Hz ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 4 pole wave wound dc motor having flux per pole of 9.56 X 10-3 Wb contains 460 armature conductors. Calculate the back emf produced when it is running at a speed of 1500 rpm. 220 volt. 440 volt. 240 volt. 230 volt. 220 volt. 440 volt. 240 volt. 230 volt. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 4 pole, 3-phase induction motor is running at 4% slip at full load. If the speed of the motor is 720 rpm, the supply frequency is 25 Hz 60 Hz 50 Hz 40 HZ 25 Hz 60 Hz 50 Hz 40 HZ ANSWER DOWNLOAD EXAMIANS APP
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 Decrease. None of these. Remains same. Increase. Decrease. None of these. Remains same. Increase. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which motors are preferred for refrigeration and air conditioning in smaller units? Stepper motors. Induction motors. Reluctance motors. Universal motors. Stepper motors. Induction motors. Reluctance motors. Universal motors. ANSWER DOWNLOAD EXAMIANS APP
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