Electrical Machines In dc machines, the field-flux axis and armature-mmf axis are respectively along quadrature axis and direct axis quadrature axis and interpolar axis direct axis and indirect axis direct axis and interpolar axis quadrature axis and direct axis quadrature axis and interpolar axis direct axis and indirect axis direct axis and interpolar axis ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The heat transfer by convection in a transformer least depends on surface area. temperature difference. color of the paint. air velocity. surface area. temperature difference. color of the paint. air velocity. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following is not a part of transformer? Tap changer. Conservator tank. Commutator. Radiator. Tap changer. Conservator tank. Commutator. Radiator. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The effect of ------------------ on main field flux is armature reaction? armature mmf armature flux All of these armature current armature mmf armature flux All of these armature current ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The DC compound motors are generally Cummulative compound. Differentical compound. Level Compound. None of these. Cummulative compound. Differentical compound. Level Compound. None of these. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which one of the following statement is correct ? In an induction motor if the air gap is increased then its efficiency will improve its speed will reduce its speed will increase its power factor will reduce its efficiency will improve its speed will reduce its speed will increase its power factor will reduce ANSWER DOWNLOAD EXAMIANS APP
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