Electrical Machines Wave winding is prefered for which of the following rating? low current and high voltage high current and high voltage low current and low voltage high current and low voltage low current and high voltage high current and high voltage low current and low voltage high current and low voltage ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Demagnetization effects which of the following? commutation both B and C reduces the terminal voltage reduction in main field flux commutation both B and C reduces the terminal voltage reduction in main field flux ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A dc shunt generator has full-load voltage regulation of 10% at rated speed of 1000 rpm. If it is now driven at 1250 rpm, then its voltage regulation at full load would be more than 10% be less than 10% remain unchanged be 12.5% be more than 10% be less than 10% remain unchanged be 12.5% ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following relation is correct? Xd = Xq. None of these Xd < Xq. Xd > Xq. Xd = Xq. None of these Xd < Xq. Xd > Xq. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A DC Motor is driving a constant load torque having armature resistance of 0.25 Ω and armature current of 60 A having connected to a voltage of 230 V. Now a resistance of 1 ohm is added into the armature circuit. The ratio of their speed will be 0.62. 0.25. 0.72. 1.24. 0.62. 0.25. 0.72. 1.24. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 3 - Φ, 4 pole IM is supplied from a 50 Hz source. Calculate rotor frequency when rotor runs 600 rpm? Can be determined. 35 Hz. 20 Hz. 30 Hz. Can be determined. 35 Hz. 20 Hz. 30 Hz. ANSWER DOWNLOAD EXAMIANS APP
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