Electrical Machines Oil is provided in an oil filled transformer for both cooling and insulation. cooling. lubrication. insulating. both cooling and insulation. cooling. lubrication. insulating. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Drop in speed from no load to full load is very high in Series motor with interpoles. Shunt motor with interpoles. Cummulative compound motor with interpoles. Series motor without interpoles. Series motor with interpoles. Shunt motor with interpoles. Cummulative compound motor with interpoles. Series motor without interpoles. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a DC generator if field winding attains the critical resistance field winding will burn. the voltage generated will be zero. machine will generate maximum voltage. machine will generate maximum power. field winding will burn. the voltage generated will be zero. machine will generate maximum voltage. machine will generate maximum power. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The heat transfer by convection in a transformer least depends on air velocity. temperature difference. surface area. color of the paint. air velocity. temperature difference. surface area. color of the paint. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The output power of a dc motor is given by none of these. EIa. EbIa2. EbIa. none of these. EIa. EbIa2. EbIa. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The no load and full load speed of DC mototr are 1400 rpm and 1200 rpm respectively. What is the percentage speed regulation of the motor? 14.28%. 16.67%. 15.30%. 18.25%. 14.28%. 16.67%. 15.30%. 18.25%. ANSWER DOWNLOAD EXAMIANS APP
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