Electrical Machines In which of the following DC Motor the ratio of starting torque to full load torque is minimum? Differential compound motor. Cumulative compound motor. Series motor. Shunt motor. Differential compound motor. Cumulative compound motor. Series motor. Shunt motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A motor operates in stable region at which of the following slip? low slip region high slip region unity slip both 1 and 2 low slip region high slip region unity slip both 1 and 2 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Winding conductors of an electrical power transformer are mainly insulated by paper insulation. cotton insulation. rubber insulation. wooden insulation. paper insulation. cotton insulation. rubber insulation. wooden insulation. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 3-phase, 50 Hz, 4 pole induction motor is running at 1440 rpm. Find the rotor efficiency? 92% 94% 96% 95% 92% 94% 96% 95% ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the excitation of the synchronous generator fails, it acts as a/an induction motor. induction generator. synchronous generator. synchronous motor. induction motor. induction generator. synchronous generator. synchronous motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a DC compound motor the field regulator is provided to demagnetize the field partially. control the field flux. control the armature flux. limit the armature current. demagnetize the field partially. control the field flux. control the armature flux. limit the armature current. ANSWER DOWNLOAD EXAMIANS APP
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