Electrical Machines The DC compound motors are generally Cummulative compound. Differentical compound. Level Compound. None of these. Cummulative compound. Differentical compound. Level Compound. None of these. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the applied voltage of a DC motor is 230 V, then back emf, for maximum power developed is 460 V. 115 V. 230 V. 200 V. 460 V. 115 V. 230 V. 200 V. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When Flemings right hand rule to find the direction of induced emf, the thumb points towards direction of induced emf. direction of flux. opposite to the direction of motion of the conductor. direction of motion of the conductor. direction of induced emf. direction of flux. opposite to the direction of motion of the conductor. direction of motion of the conductor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The material used for commutator brushes is mostly mica. copper. carbon. cast iron. mica. copper. carbon. cast iron. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 4 pole DC generator rotates at 1500 rpm. How many times in a second, will the emf induced in each armature conductor changes its direction? 500. 750. 200. 100. 500. 750. 200. 100. 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 40 HZ 50 Hz 25 Hz 60 Hz 40 HZ 50 Hz 25 Hz 60 Hz ANSWER DOWNLOAD EXAMIANS APP
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