Electrical Machines In DC generators, the residual magnetism is of the order of 2.5 %. 15 %. 20 %. 10 %. 2.5 %. 15 %. 20 %. 10 %. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For the purpose of starting an induction motor, star/delta switch is an equivalent to auto transformer of ratio 57.7% 66.3% 50% 33.3% 57.7% 66.3% 50% 33.3% ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The flux involved in the emf equation of a transformer has total value. maximum value. rms value. average value. total value. maximum value. rms value. average value. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a transformer, hysteresis and eddy current losses depend upon supply frequency maximum flux density load current both 2 and 3 supply frequency maximum flux density load current both 2 and 3 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines At the instant of starting, the per unit slip of 3 - Φ induction motor is 1.0. 0.05. 0.1. 0.5. 1.0. 0.05. 0.1. 0.5. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For satisfactory performance of 3-phase 480V, 60 Hz induction motor, the supply voltage at 50 Hz should be equal to 350 V. 480 V. 420 V. 400 V. 350 V. 480 V. 420 V. 400 V. ANSWER DOWNLOAD EXAMIANS APP
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