Electrical Machines Exciting current of an induction motor is none of these. higher than power transformer. lesser than power transformer. equal as power transformer. none of these. higher than power transformer. lesser than power transformer. equal as power transformer. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Brushes are always placed on--------------- , in order to achieve sparkles commutation? either GNA or MNA GNA None of these MNA either GNA or MNA GNA None of these MNA ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the excitation is reduced, the power factor is None of these lagging power factor leading power factor unity power factor None of these lagging power factor leading power factor unity power factor ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In synchronous generator a synchronous dead load (lamp, furnaces etc) has no ____________ hence it has no natural frequency of oscillation. restoring torque. damping torque. synchronizing power co efficient. mechanical rotatory system. restoring torque. damping torque. synchronizing power co efficient. mechanical rotatory system. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines We can apply source transformation to voltage source when a resistance is connected to it in 14 HP. 15 HP. 13 HP. 10 HP. 14 HP. 15 HP. 13 HP. 10 HP. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Considering a galvanometer is connected to the rotor of a 3 - Φ, 4 pole, 50 Hz IM and is making 130 oscillations in a minute, then calculate the rotor speed? 1440. 1500. 1435. 1450. 1440. 1500. 1435. 1450. ANSWER DOWNLOAD EXAMIANS APP
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