Electrical Machines Compensating windings is placed in which part of a D.C motor? On yoke in the pole faces. None of these On armature. On yoke in the inter pole gap. On yoke in the pole faces. None of these On armature. On yoke in the inter pole gap. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines We can apply source transformation to voltage source when a resistance is connected to it in 10 HP. 15 HP. 14 HP. 13 HP. 10 HP. 15 HP. 14 HP. 13 HP. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a DC generator sparking between brushes and commutator surface may be due to over commutation. under commutation. any of the above. too rapid reversal of current. over commutation. under commutation. any of the above. too rapid reversal of current. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Unbalanced supply voltage given to a 3 - φ, delta connected induction motor will cause less heating of the rotor. less heating of the rotor. negative sequence current. all of these. less heating of the rotor. less heating of the rotor. negative sequence current. all of these. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following is not a necessary condition to be satisfied for synchronising an incoming alternator to an already operating alternator? same frequency same phase sequence same voltage magnitude same prime mover speed same frequency same phase sequence same voltage magnitude same prime mover speed ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a DC machine emf in armature conductors and at the terminals is alternating. current and emf in armature are alternating. current and emf in armature are unidirectional current and emf at the terminals are alternating. emf in armature conductors and at the terminals is alternating. current and emf in armature are alternating. current and emf in armature are unidirectional current and emf at the terminals are alternating. ANSWER DOWNLOAD EXAMIANS APP
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