Electrical Machines If any two leads from slip rings are interchanged in a 3 - Φ induction motor, the motor will continue running in the same direction as before. run in a direction opposite to previous one. get damaged. not run. continue running in the same direction as before. run in a direction opposite to previous one. get damaged. not run. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The functions of inter poles are both 1 and 2 nullify reactance voltage and improve the commutation. reduce cross magnetization effect and improve commutation None of these both 1 and 2 nullify reactance voltage and improve the commutation. reduce cross magnetization effect and improve commutation None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Capacitor start capacitor run provides high power factor only. high staring torque only. none. high staring torque and high power factor. high power factor only. high staring torque only. none. high staring torque and high power factor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC generator, the electricity produced in armature is DC. None of these armature is not present in DC generator. AC. DC. None of these armature is not present in DC generator. AC. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For higher values of armature, the speed of a DC series motor is Proportional to armature current. Proportional to the square of armature current. Inversely proportional to armature current. Constant. Proportional to armature current. Proportional to the square of armature current. Inversely proportional to armature current. Constant. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 3 - Φ, 4 pole IM is supplied from a 50 Hz source. Calculate rotor frequency when rotor runs 600 rpm? Can be determined. 20 Hz. 35 Hz. 30 Hz. Can be determined. 20 Hz. 35 Hz. 30 Hz. ANSWER DOWNLOAD EXAMIANS APP
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