Electrical Machines If the applied voltage of a DC motor is 230 V, then back emf, for maximum power developed is 230 V. 460 V. 200 V. 115 V. 230 V. 460 V. 200 V. 115 V. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The wattage rating of a ceiling fan motor will be 10 - 20 W. 200 - 250 W. 250 - 500 W. 50 - 150 W. 10 - 20 W. 200 - 250 W. 250 - 500 W. 50 - 150 W. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following alternators contain large number of poles? None of these Turbo alternators. Aame in both alternators. Hydro alternators. None of these Turbo alternators. Aame in both alternators. Hydro alternators. 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. 30 Hz. 35 Hz. Can be determined. 20 Hz. 30 Hz. 35 Hz. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In dc machine armature windings are placed on rotor because of the necessity for generation of voltage. development of torque. electromechanical energy conversion. commutation. generation of voltage. development of torque. electromechanical energy conversion. commutation. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Torque angle of a synchorous machine operating from a constant voltage bus is usually defined as the space angle between Stator mmf wave and resultant mmf wave. Stator mmf wave and resultant flux density. Rotor mmf wave and stator mmf wave. Rotor mmf wave and resultant flux density wave. Stator mmf wave and resultant mmf wave. Stator mmf wave and resultant flux density. Rotor mmf wave and stator mmf wave. Rotor mmf wave and resultant flux density wave. ANSWER DOWNLOAD EXAMIANS APP
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