Electrical Machines Quadrature axis synchronous reactance is the ratio of Vmax to Imax. Vmin to Imax. Vmin to Imin. Vmax to Imin. Vmax to Imax. Vmin to Imax. Vmin to Imin. Vmax to Imin. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If field current is decreased in shunt dc motor, the speed of the motor increases. None of these remains same. decreases. increases. None of these remains same. decreases. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines On which of the following factor/factors the speed of a DC motor depends upon? Armature current. All of these. Applied voltage. Field flux. Armature current. All of these. Applied voltage. Field flux. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The functions of inter poles are nullify reactance voltage and improve the commutation. both 1 and 2 None of these reduce cross magnetization effect and improve commutation nullify reactance voltage and improve the commutation. both 1 and 2 None of these reduce cross magnetization effect and improve commutation ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For a standard frequency the machine operates at a particular speed known as any of the above. slip speed. normal speed. synchronous speed. any of the above. slip speed. normal speed. synchronous speed. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 3 - Φ induction motor draws an current of 50 A from mains when starts by direct switching. If an auto transformer with 60 % tapping is used for starting the current drawn from the mains will be 18. 36. 50. 80. 18. 36. 50. 80. ANSWER DOWNLOAD EXAMIANS APP
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