Electrical Machines Eb/V ratio of a DC motor is an indication of Speed regulation. Effiency. Running Torque. Starting torque. Speed regulation. Effiency. Running Torque. Starting torque. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Direct-on-line (DOL) starters are not suitable for starting large DC motors, because the motor may run away. the motor may not start. the starting torque becomes low. the starting current will be enormously high. the motor may run away. the motor may not start. the starting torque becomes low. the starting current will be enormously high. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a 6 pole DC machine, 90 mechanical degrees correspond to which of the following electrical degree? 30. 270. 180. 45. 30. 270. 180. 45. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 230 V dc series generator is driven at its rated speed. The no-load voltage across its armature terminals would be somewhat more than 230 V 230 V somewhat less than 230 V 6 V somewhat more than 230 V 230 V somewhat less than 230 V 6 V ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a transformer, the frequency of a voltage at the secondary is any of the above. equal to primary. greater than the primary. less than primary. any of the above. equal to primary. greater than the primary. less than primary. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 8 pole, 50 Hz single phase induction motor is running at 690 rpm. Its slip with respect to forward field is -1.92 0.08 1.92 -0.08 -1.92 0.08 1.92 -0.08 ANSWER DOWNLOAD EXAMIANS APP
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