Electrical Machines Find the developed torque DC Series Motor having armature resistance of 0.2 Ω and taking armature current of 60 A is connected to 250 V supply. Considered brush drop of 1 V each. 133.22 N-m cant be determined. 234.76 N-m. 266.20 N-m. 133.22 N-m cant be determined. 234.76 N-m. 266.20 N-m. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 3-phase 6 pole 50 Hz induction motor is running at 5% slip.What is the speed of the motor? 950 rpm 900 rpm 850 rpm 1000 rpm 950 rpm 900 rpm 850 rpm 1000 rpm ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In an auto-transformer, power is transferred through both A and B. None of these induction process only. conduction process only. both A and B. None of these induction process only. conduction process only. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Armature resistance control method is also called as-----------? constant torque control constant current control constant voltage control constant power control constant torque control constant current control constant voltage control constant power control ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Maximum power will be developed when back emf is All of these equal to supply voltage. double the supply voltage. half of the supply voltage. All of these equal to supply voltage. double the supply voltage. half of the supply voltage. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Direction of rotation of DC motor is reversed by Reversing supply connection. Adding resistance to field circuit. Interchanging armature and field connection. Reversing armature connection or field connection. Reversing supply connection. Adding resistance to field circuit. Interchanging armature and field connection. Reversing armature connection or field connection. ANSWER DOWNLOAD EXAMIANS APP
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