Electrical Machines A transformer has maximum efficiency at 3/4 load. The ratio of iron loss and full load copper loss is 9/16. 16/9. 3/4. 4/3. 9/16. 16/9. 3/4. 4/3. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In induction motor the 7th harmonic torque may make the motor rotate at (1 / 7)th synchronous speed. This is called cogging. resonance. harmonics. crawling. cogging. resonance. harmonics. crawling. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Synchronous condensers are used to improve the power factor reduce hunting All of these improve starting torque improve the power factor reduce hunting All of these improve starting torque ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For a dc machine shunt resistance and armature resistance values are high and high low and low low and high high and low high and high low and low low and high high and low ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What type of connection is made in between the inter-pole and the field winding? Parallel. None of the options. Compound. Series. Parallel. None of the options. Compound. Series. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Armature resistance control method is also called as-----------? constant voltage control constant current control constant torque control constant power control constant voltage control constant current control constant torque control constant power control ANSWER DOWNLOAD EXAMIANS APP
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