Electrical Machines Maximum allowable moisture content of power transformer insulating oil is generally taken as 20 ppm. 25 ppm. 35 ppm. 45 ppm. 20 ppm. 25 ppm. 35 ppm. 45 ppm. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines No load test of 3-phase induction motor gives which of the following? both A and B variable loss None of these constant loss both A and B variable loss None of these constant loss ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Stability of a synchronous motor ---------- with the increase in excitation. any of the above remains unaffected increases decreases any of the above remains unaffected increases decreases ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines It is an advisable to use auto transformer if the transformation ratio is 0.25. Greater than 1. 0.5. near to 1. 0.25. Greater than 1. 0.5. near to 1. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Armature reaction in DC generators will result in short circuit. increase in slip. open circuit. reduction in generated emf. short circuit. increase in slip. open circuit. reduction in generated emf. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In case of DC Shunt Motor, the speed will____ if the voltage increases, neglecting armature saturation. decrease. increase remain the same. be unpredictable. decrease. increase remain the same. be unpredictable. ANSWER DOWNLOAD EXAMIANS APP
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