Electrical Machines A 8 pole, 50 Hz single phase induction motor is running at 690 rpm. Its slip with respect to forward field is -0.08 1.92 0.08 -1.92 -0.08 1.92 0.08 -1.92 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In star-delta starting of squirrel cage induction motor compared to DOL starting the starting current and torque are 1/√3, 1/3 1/3, 1/√3 1/3, 1/3 1/√3, 1/√3 1/√3, 1/3 1/3, 1/√3 1/3, 1/3 1/√3, 1/√3 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Where the shunt generators are widely used? Where the load is very high. Where a constant voltage is required over a narrow load range. Where often load fluctuation is occurred. Where voltage variation is needed over a wide load range. Where the load is very high. Where a constant voltage is required over a narrow load range. Where often load fluctuation is occurred. Where voltage variation is needed over a wide load range. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Two transformers with identical rating, are designed with flux densities of 1.2 and 1.4 Wb / m2 respectively. The weight of first transformer per kVA is equal to that of second transformer. more than that of second transformer. none of these. less than that of second transformer. equal to that of second transformer. more than that of second transformer. none of these. less than that of second transformer. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines DC series motor is best suited for electric traction as It develops high starting torque. It is cheaper in cost. It runs at very high speed at light load. It consume less power. It develops high starting torque. It is cheaper in cost. It runs at very high speed at light load. It consume less power. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A commutator in dc machine provide ----------------- rectification? half wave controlled half wave full wave controlled full wave half wave controlled half wave full wave controlled full wave ANSWER DOWNLOAD EXAMIANS APP
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