Electrical Machines Mechanical energy is supplied to DC generator at the rate of 4200 J / s. The generator delivers 32.2 Amp at 120 V. What is the percentage efficiency of the generator? 201.02 V. 205 V. 212 V. 210 V. 201.02 V. 205 V. 212 V. 210 V. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When two DC series motors are connected in parallel, the resultant speed is zero. less than normal speed. more than normal speed. normal speed. zero. less than normal speed. more than normal speed. normal speed. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a dc machine, the demagnetizing effect of armature reaction is due to component of armature mmf along field axis magnetic saturation in half of the field pole uneven air-gap length non-sinusoidal nature of armature mmf component of armature mmf along field axis magnetic saturation in half of the field pole uneven air-gap length non-sinusoidal nature of armature mmf ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A DC series motor has which of the following characteristics? Can be started easily without load. Has a almost constant speed. Has its field winding consinting of thick wire and less no of turns. Has a poor torque. Can be started easily without load. Has a almost constant speed. Has its field winding consinting of thick wire and less no of turns. Has a poor torque. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC shunt motor if load is increased, the speed reduce slightly. increase proportional. increased slightly. remains constant. reduce slightly. increase proportional. increased slightly. remains constant. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following is not a part of transformer? Commutator. Tap changer. Conservator tank. Radiator. Commutator. Tap changer. Conservator tank. Radiator. ANSWER DOWNLOAD EXAMIANS APP
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