Electrical Machines Motors for fans and pumps are selected in the rpm range 1440 to 2880. 720 to 920. 500 to 720. 375 to 500. 1440 to 2880. 720 to 920. 500 to 720. 375 to 500. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a 3 - Φ wound rotor induction motor the short circuit gear is used to short circuit the stator phases of the motor. rotor at slip rings. None of these starting resistance in the starter. stator phases of the motor. rotor at slip rings. None of these starting resistance in the starter. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Quadrature axis synchronous reactance is the ratio of Vmin to Imin. Vmax to Imin. Vmax to Imax. Vmin to Imax. Vmin to Imin. Vmax to Imin. Vmax to Imax. Vmin to Imax. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Maximum allowable acidity level of power transformer insulating oil is generally taken as 0.5 mg of KOH / gm. 2 mg of KOH / gm. 0.3 mg of KOH / gm. 1 mg of KOH / gm. 0.5 mg of KOH / gm. 2 mg of KOH / gm. 0.3 mg of KOH / gm. 1 mg of KOH / gm. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The condition for maximum running torque is zero unity 0.5 lagging R = S.X 0.707 lagging zero unity 0.5 lagging R = S.X 0.707 lagging ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In induction motor the 7th harmonic torque may make the motor rotate at (1 / 7)th synchronous speed. This is called harmonics. cogging. resonance. crawling. harmonics. cogging. resonance. crawling. ANSWER DOWNLOAD EXAMIANS APP
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