Electrical Machines If the temperature of armature resistance is increased, the speed of a series motor would decrease. increase. not change. None of above. decrease. increase. not change. None of above. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of following motor is preferred for belt conveyor? Slip ring induction motor. Universal motor. Reluctance motor. Synchronous motors. Slip ring induction motor. Universal motor. Reluctance motor. Synchronous motors. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines which of the following losses are negligible in blocked rotor test? both A and B mechanical loss copper loss iron loss both A and B mechanical loss copper loss iron loss 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. 240 volt. 230 volt. 220 volt. 440 volt. 240 volt. 230 volt. 220 volt. 440 volt. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Dynamic braking is very effective for shunt motors. separately excited motors. series motors. differential compound motors. shunt motors. separately excited motors. series motors. differential compound motors. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Armature reaction in dc motor results short circuit. increase in speed. open circuit. decrease in speed. short circuit. increase in speed. open circuit. decrease in speed. ANSWER DOWNLOAD EXAMIANS APP
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