Electrical Machines If any two leads from slip rings are interchanged in a 3 - Φ induction motor, the motor will run in a direction opposite to previous one. not run. get damaged. continue running in the same direction as before. run in a direction opposite to previous one. not run. get damaged. continue running in the same direction as before. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines To eliminate the 5th harmonic in the induced voltages their respective pitch factor angle should be 72° 36° 18° 30° 72° 36° 18° 30° ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Skewing of cage rotors offers the following advantages less noise. locking tendency is reduced. all of below. uniform torque. less noise. locking tendency is reduced. all of below. uniform torque. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which machine is used for battery charging? None of these. DC shunt generator. Compounded DC generator. DC series generator. None of these. DC shunt generator. Compounded DC generator. DC series generator. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Reversing the direction of rotation of split phase motors is done by interchanging the capacitor from starting winding to main winding or vice versa. reversing the terminals of starting winding. reversing the terminals of main winding. All of these interchanging the capacitor from starting winding to main winding or vice versa. reversing the terminals of starting winding. reversing the terminals of main winding. All of these 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? 30 V. 60 V. 90 V. 40 V. 30 V. 60 V. 90 V. 40 V. ANSWER DOWNLOAD EXAMIANS APP
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