Electrical Machines which of the following losses are negligible in blocked rotor test? both A and B iron loss mechanical loss copper loss both A and B iron loss mechanical loss copper loss ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following induction motor has the highest starting torque? None of these Slip ring induction motor. Same in both induction motors. Squirrel cage induction motor. None of these Slip ring induction motor. Same in both induction motors. Squirrel cage induction motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In dc machine armature windings are placed on rotor because of the necessity for generation of voltage. electromechanical energy conversion. commutation. development of torque. generation of voltage. electromechanical energy conversion. commutation. development of torque. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Armature reaction in DC generators will result in reduction in generated emf. increase in slip. open circuit. short circuit. reduction in generated emf. increase in slip. open circuit. short circuit. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a DC series generator, the terminal voltage with increase in load will increase to rated voltage and then may decrease remain nearly constant increase gradually and then stay at rated voltage decrease increase to rated voltage and then may decrease remain nearly constant increase gradually and then stay at rated voltage decrease ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following represents the pitch factor? sin (α/2) Cos α² Cos α Cos (α/2) sin (α/2) Cos α² Cos α Cos (α/2) ANSWER DOWNLOAD EXAMIANS APP
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