Electrical Machines In a DC Shunt Motor if the load current increases then field flux decreases. decreases remains constant. increases. decreases. decreases remains constant. increases. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the excitation is increased, the power factor is leading power factor unity power factor lagging power factor None of these leading power factor unity power factor lagging power factor None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The constant losses in transformer is/are eddy current loss. hysteresis loss. copper loss. both 2 and 3. eddy current loss. hysteresis loss. copper loss. both 2 and 3. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Unbalance 3 - Φ stator currents cause vibrations. heating of rotor. All of these double frequency currents in the rotor. vibrations. heating of rotor. All of these double frequency currents in the rotor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which method is less recommendable for induction motor starting in the industries? Stator resistance starting. Direct online starting. Rotor resistance starting. Auto transformer starting. Stator resistance starting. Direct online starting. Rotor resistance starting. Auto transformer starting. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC machine, the armature windings are placed on the rotor because of necessity for development of torque. commutation. electromechanical energy conversion. generation of voltage. development of torque. commutation. electromechanical energy conversion. generation of voltage. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS