Electrical Machines Which of the following load normally needs starting torque more than rated torque? Air compressors. Conveyers. Blowers. Centrifugal pumps. Air compressors. Conveyers. Blowers. Centrifugal pumps. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following voltage regulator is preferred for providing large values of load current? Zener diode shunt regulator. Transistor shunt regulator. Transistor series regulator. None of these Zener diode shunt regulator. Transistor shunt regulator. Transistor series regulator. None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Unbalance 3 - Φ stator currents cause All of these heating of rotor. vibrations. double frequency currents in the rotor. All of these heating of rotor. vibrations. double frequency currents in the rotor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Armature reaction of an unsaturated DC machine is crossmagnetising. magnetising. none of above. demagnetising. crossmagnetising. magnetising. none of above. demagnetising. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a transformer zero voltage regulation is achieved at a load power factor which is unity leading zero lagging unity leading zero lagging ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What is the speed of stator rotating magnetic field with respect to rotor rotating magnetic field? None of these Slip speed Zero Synchronous speed None of these Slip speed Zero Synchronous speed ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS