Electrical Machines Which of the following represents the pitch factor? Cos α sin (α/2) Cos α² Cos (α/2) Cos α sin (α/2) Cos α² Cos (α/2) ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For a practical synchronous motor the pull out torque will occur when the torque angle is nearly equal to 45°. 30°. 75°. 0°. 45°. 30°. 75°. 0°. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the field connection of a DC Shunt Motor is changed then motor will not run. it will run in opposite direction. it will run in same direction. it will run in same direction by slowly. motor will not run. it will run in opposite direction. it will run in same direction. it will run in same direction by slowly. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A DC series motor must started on no load because it would Run at dangerously high speed. Not develop starting torque. Fail to start without load. Draw more current without producing sufficient torque. Run at dangerously high speed. Not develop starting torque. Fail to start without load. Draw more current without producing sufficient torque. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines An induction motor has synchronous speed of 1500 rpm. What will be the slip when it is running at a speed of 1450 rpm? -3% +3% -3.33% +3.33% -3% +3% -3.33% +3.33% ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Torque angle of a synchorous machine operating from a constant voltage bus is usually defined as the space angle between Stator mmf wave and resultant flux density. Rotor mmf wave and resultant flux density wave. Rotor mmf wave and stator mmf wave. Stator mmf wave and resultant mmf wave. Stator mmf wave and resultant flux density. Rotor mmf wave and resultant flux density wave. Rotor mmf wave and stator mmf wave. Stator mmf wave and resultant mmf wave. ANSWER DOWNLOAD EXAMIANS APP
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