Electrical Machines A lap wound DC machine has 400 conductors and 8 poles. The voltage induced per conductor is 2 volts. The machine generates a voltage of 400 V. 100 V. 200 V. 800 V. 400 V. 100 V. 200 V. 800 V. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC series motor the speed is ______________ proportional to the armature current. directly. none of these. has no relation. inversely. directly. none of these. has no relation. inversely. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When a short circuit test on a transformer is performed at 25 V, 50 Hz, the drawn current is I1. If the test is performed by 25 V and 25 Hz and power drawn current is I2, then I1 > I2 None of these I1 = I2 I1 < I2 I1 > I2 None of these I1 = I2 I1 < I2 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The principal of starting of 3 - Φ IM is similar to capacitor run IM. transformer with short-circuited secondary. synchronous motor. repulsion motor type starting. capacitor run IM. transformer with short-circuited secondary. synchronous motor. repulsion motor type starting. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The armature of a DC motor is laminated to reduce copper loss. eddy current loss. hysteresis loss. friction and windage loss. copper loss. eddy current loss. hysteresis loss. friction and windage loss. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The DC generator runs at a speed of 1000 rpm and flux per pole is 0.2 Wb, number of poles are 2 the winding is wave wound and having 480 conductors. The critical speed is 1200 rpm. Then the generated emf ( Eg ) 1600 Volt. 2000 Volt. 0 Volt. 1500 Volt. 1600 Volt. 2000 Volt. 0 Volt. 1500 Volt. ANSWER DOWNLOAD EXAMIANS APP
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