Electrical Machines The speed of a DC series motor is Proportional to field current. Proportional to the armature current. Inversely proportional to the armature current. Proportional to the square of the armature current. Proportional to field current. Proportional to the armature current. Inversely proportional to the armature current. Proportional to the square of the armature current. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Stray losses in transformer occurs in paper insulation in transformers. winding conductors and steel structures of transformer. steel core. transformer insulating oil. paper insulation in transformers. winding conductors and steel structures of transformer. steel core. transformer insulating oil. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Damper winding is used to decrease the load current. suppress the hunting. increase the load current. both 1 and 2. decrease the load current. suppress the hunting. increase the load current. both 1 and 2. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In dc machine armature windings are placed on rotor because of the necessity for commutation. development of torque. generation of voltage. electromechanical energy conversion. commutation. development of torque. generation of voltage. electromechanical energy conversion. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines High inrush of current during a starting of DC motor can efficiently be restricted to a safer value by increasing the _________________ resistance. none of above armature circuit shunt field both A and B none of above armature circuit shunt field both A and B ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following alternators contain large number of poles? Turbo alternators. Hydro alternators. Aame in both alternators. None of these Turbo alternators. Hydro alternators. Aame in both alternators. None of these ANSWER DOWNLOAD EXAMIANS APP
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