Electrical Machines The slip of an induction motor during DC rheostatic braking is 2 + s. 1 - s. s. 2 - s. 2 + s. 1 - s. s. 2 - s. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The use of higher flux density in the transformer design has no relation with the weight of transformer increases the weigh per KVA reduces the weigh per KVA None of these has no relation with the weight of transformer increases the weigh per KVA reduces the weigh per KVA None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The interpoles in dc machines have a tapering shape in order to increase the acceleration of commutation reduce the overall weight reduce the saturation in the interpole economise on the material required for interpoles and their windings increase the acceleration of commutation reduce the overall weight reduce the saturation in the interpole economise on the material required for interpoles and their windings ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What is the highest possible speed of turbo alternators? 1500 rpm 1000 rpm 3000 rpm 4000 rpm 1500 rpm 1000 rpm 3000 rpm 4000 rpm ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If peak value of phase mmf is F max , then peak value of the rotating field caused by three phase is (1/2)Fmax. Fmax. 3Fmax. (3/2)Fmax. (1/2)Fmax. Fmax. 3Fmax. (3/2)Fmax. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If a DC Series motor is connected across an AC supply it will not run. run at lower speed. burn. run at normal speed. not run. run at lower speed. burn. run at normal speed. ANSWER DOWNLOAD EXAMIANS APP
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