Electrical Machines The speed of stator rotating magnetic field (RMF) with respect to rotor is Nr Zero Ns S.Ns Nr Zero Ns S.Ns ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The armature mmf of a DC machine has triangular space distribution and rotates at the speed of armature. stepped distribution and rotates at the speed of armature. triangular space distribution and is stationary in space. trapezoidal space distribution and is stationary in space. triangular space distribution and rotates at the speed of armature. stepped distribution and rotates at the speed of armature. triangular space distribution and is stationary in space. trapezoidal space distribution and is stationary in space. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Fifth harmonic component of the induced voltage in three phase AC generator can be eliminated by using a winding pitch of 6 / 7. 2 / 3. 4 / 5. 5 / 6. 6 / 7. 2 / 3. 4 / 5. 5 / 6. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A series generator is connected in series to a feeder having 0.5Ω resistance to boost the voltage. The induced voltage is given by Eg = 0.6Ia, Ra = 0.2Ω and Rs = 0.3Ω. Find the voltage boosted by the generator, when delivering 400 Amp? 60 V. 30 V. 90 V. 40 V. 60 V. 30 V. 90 V. 40 V. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A differentially compound motor under high-over-load conditions will behave like a / an series motor. cummulative compound motor. AC synchronous motor. shunt motor. series motor. cummulative compound motor. AC synchronous motor. shunt motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For a transformer to be tested at full load conditions but consuming only losses from the main, we do back to back test OC and SC tests load test None of these back to back test OC and SC tests load test None of these ANSWER DOWNLOAD EXAMIANS APP
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