Electrical Machines Which of the following will vary the maximum torque? rotor reactance X both 1 and 2 rotor resistance R None of these rotor reactance X both 1 and 2 rotor resistance R None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The speed of stator rotating magnetic field (RMF) with respect to rotor is Nr S.Ns Zero Ns Nr S.Ns Zero Ns ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following motor has more stability cylindrical motor None of these salient pole motor both motors has same stability cylindrical motor None of these salient pole motor both motors has same stability ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines When applied rated voltage per phase is reduce to one half, the starting torque of three phase squirrel cage induction motor becomes twice the initial value 4 time the initial value 1/4 of the intial value 1/2 of the initial value twice the initial value 4 time the initial value 1/4 of the intial value 1/2 of the initial value ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the field circuit of a DC shunt motor is opened The speed of motor will be reduced. The motor will attain dangerously high speed. The armature current will reduce. DC Shunt Motor The speed of motor will be reduced. The motor will attain dangerously high speed. The armature current will reduce. DC Shunt Motor ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Armature resistance control method is used for the _______ ? both 1 and 2 None of these below rated speed above rated speed both 1 and 2 None of these below rated speed above rated speed ANSWER DOWNLOAD EXAMIANS APP
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