Electrical Machines Hunting in a synchronous cannot be due to windage friction. variable frequency. variable load. variable supply voltage. windage friction. variable frequency. variable load. variable supply voltage. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following is/are not a self starting motor? both 1 and 2 3-phase induction motor 1-phase induction motor None of these both 1 and 2 3-phase induction motor 1-phase induction motor None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a DC machine, which of these parameters remain the same whether it runs as a DC motor or a DC generator? Mechanical power. Induced emf. Can not be determined. Armature current. Mechanical power. Induced emf. Can not be determined. Armature current. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In case the conditions for maximum power for DC motor are established, the efficiency of the motor will be Around 90 % Less than 50 % Around 100 %. Any where between 75 % and 90 %. Around 90 % Less than 50 % Around 100 %. Any where between 75 % and 90 %. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a synchronous motor when the rotor speed exceeds the synchronous speed during hunting negative sequence currents are generated. the damper bars develop synchronous motor torque. the damper bars develop induction generator torque. the damper bars develop induction motor torque. negative sequence currents are generated. the damper bars develop synchronous motor torque. the damper bars develop induction generator torque. the damper bars develop induction motor torque. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which type of motors uses slip rings? Induction motors Both Synchronous and Induction motor Synchronous motors DC Shunt Motor Induction motors Both Synchronous and Induction motor Synchronous motors DC Shunt Motor ANSWER DOWNLOAD EXAMIANS APP
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