Electrical Machines Transformer cooling and insulating oil must be of low resistivity. low viscosity. high viscosity. low BDV. low resistivity. low viscosity. high viscosity. low BDV. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The torque developed in IM is nearly proportional to V2. 1 / V2. V. 1 / V. V2. 1 / V2. V. 1 / V. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The rotor electromotive force of the IM is observed to make 100 complete alterations per minute, calculated slip 0 .001 %. None of these 3 %. 3.33 %. 0 .001 %. None of these 3 %. 3.33 %. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A shunt generator has a critical field resistance of 300 Ω at a speed of 800 rpm if the speed is raised to 1000 rpm the critical field resistance is 150 Ω. 225 Ω. 145 Ω. 375 Ω. 150 Ω. 225 Ω. 145 Ω. 375 Ω. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Eb/Vt ratio of a DC motor is an indication of efficiency. starting torque. running torque. speed regulation. efficiency. starting torque. running torque. speed regulation. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a transformer operating at constant voltage if the input frequency increases, the core loss increase. None of these remains constant. decrease. increase. None of these remains constant. decrease. ANSWER DOWNLOAD EXAMIANS APP
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