Electrical Machines Hopkinss test in DC motor is conducted at ? No load. None of these. Low load. Full load. No load. None of these. Low load. Full load. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Two single-phase alternators operating in parallel have induced EMFs on open circuit of 230∠0° and 230∠10° volts and respective reactance of j2 Ω j3 Ω calculate the terminal voltage 150 V. 200 V. 223.V. 300 V. 150 V. 200 V. 223.V. 300 V. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines An unexcited single phase synchronous motor is AC series motor. reluctance motor. universal motor. repulsion motor. AC series motor. reluctance motor. universal motor. repulsion motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The rotor power output of 3-phase induction motor is 15 KW. The rotor copper losses at a slip of 4% will be 650 W 600 W 700 W 625 W 650 W 600 W 700 W 625 W ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a DC machine, which of these parameters remain the same whether it runs as a DC motor or a DC generator? Induced emf. Can not be determined. Mechanical power. Armature current. Induced emf. Can not be determined. Mechanical power. Armature current. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the air gap of IM is increased, ____________ will increase. air gap flux. power factor. magnetizing current. speed. air gap flux. power factor. magnetizing current. speed. ANSWER DOWNLOAD EXAMIANS APP
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