Electrical Machines In salient pole synchronous machine, the reluctance power varies as sinδ cos2δ cosδ sin2δ sinδ cos2δ cosδ sin2δ ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What is/are the necessary conditions for voltage build up in self excited generator? Field winding resistance should be less than critical resistance. Field winding should be properly connected to armature winding. Poles should contain residual flux. All of these Field winding resistance should be less than critical resistance. Field winding should be properly connected to armature winding. Poles should contain residual flux. All of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Stability of a synchronous motor ---------- with the increase in excitation. remains unaffected decreases increases any of the above remains unaffected decreases increases any of the above ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In escalator which motor is used? 3 - φ IM. DC shunt motor. 1 - φ IM. Universal motor. 3 - φ IM. DC shunt motor. 1 - φ IM. Universal motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Conservator tank is used to take up the expansion of oil due to temperature rise. for better cooling of transformer. None of these to act as an oil storage. to take up the expansion of oil due to temperature rise. for better cooling of transformer. None of these to act as an oil storage. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines On which of the following factor/factors the speed of a DC motor depends upon? All of these. Armature current. Field flux. Applied voltage. All of these. Armature current. Field flux. Applied voltage. ANSWER DOWNLOAD EXAMIANS APP
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