Electrical Machines Total core loss is also called as -------------? Hysteresis loss Eddy current loss Copper loss Magnetic loss Hysteresis loss Eddy current loss Copper loss Magnetic loss ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Induction motors have the advantage of less cost. all of below. less maintenance. simple in construction. less cost. all of below. less maintenance. simple in construction. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The direction of generated emf in the armature coil of a DC machine is 1. the same as that of the current in a generator 2. the same as that of the current in a motor 3. opposite to that of the current in a generator 4. opposite to that of the current in a motor From these, the correct answer is 1, 3 2, 4 2, 3 1, 4 1, 3 2, 4 2, 3 1, 4 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines An ideal synchronous motor has no starting torque because relative velocity between the stator and rotor mmf’s is zero. rotor is made up of salient poles. rotor winding is highly reactive. relative velocity between stator and rotor mmf’s is not zero. relative velocity between the stator and rotor mmf’s is zero. rotor is made up of salient poles. rotor winding is highly reactive. relative velocity between stator and rotor mmf’s is not zero. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following is not a part of transformer? Radiator. Commutator. Tap changer. Conservator tank. Radiator. Commutator. Tap changer. Conservator tank. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In V/f speed control of 3-phase induction motor, with increase in frequency, the slip at which maximum torque occurs None of these either of these. decrease. increase. None of these either of these. decrease. increase. ANSWER DOWNLOAD EXAMIANS APP
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