Electrical Machines Field weakening control method is used for the _________ ? both A and B below rated speed None of these above rated speed both A and B below rated speed None of these above rated speed ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines At slip s = 1 torque developed in machine is electromagnetic torque. starting torque. none. maximum torque. electromagnetic torque. starting torque. none. maximum torque. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which motor cannot be started on no load? cumulative compound motors series motors both B and C shunt motors cumulative compound motors series motors both B and C shunt motors ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A crusher is equipped with Synchronous motor. Slip ring induction motor. DC shunt motor. Reluctance motor. Synchronous motor. Slip ring induction motor. DC shunt motor. Reluctance motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A shunt generator has a critical field resistance of 300 Ω at a speed of 800 rpm if the speed is raised to 1000 rpm the critical field resistance is 150 Ω. 145 Ω. 225 Ω. 375 Ω. 150 Ω. 145 Ω. 225 Ω. 375 Ω. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Pole changing methods are suitable only for ___________ type induction motor. cage. wound. linear. none of these. cage. wound. linear. none of these. ANSWER DOWNLOAD EXAMIANS APP
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