Electrical Machines Which of the following methods of speed control is not affected through stator side? Change of rotor resistance. Change of supply frequency. Change of supply voltage. Change of number of pole. Change of rotor resistance. Change of supply frequency. Change of supply voltage. Change of number of pole. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What is the reason for stationary armature essential in alternators above 5 KVA? All of these Insulation requirement is less. Collecting of large current is simple. Operating cost is less. All of these Insulation requirement is less. Collecting of large current is simple. Operating cost is less. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Stray losses in transformer occurs in winding conductors and steel structures of transformer. transformer insulating oil. paper insulation in transformers. steel core. winding conductors and steel structures of transformer. transformer insulating oil. paper insulation in transformers. steel core. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following DC Motor requires 3 point starter? Shunt, compound and series motor. Series motor. Shunt motor. Shunt motor as well as compound motors. Shunt, compound and series motor. Series motor. Shunt motor. Shunt motor as well as compound motors. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 3-phase, 2 pole, 12 slot synchronous machine is operating at synchronous speed. Find the slot angle? 20° 60° 18° 30° 20° 60° 18° 30° ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Armature resistance control method is also called as-----------? constant torque control constant voltage control constant power control constant current control constant torque control constant voltage control constant power control constant current control ANSWER DOWNLOAD EXAMIANS APP
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