Electrical Machines In dc machine armature windings are placed on rotor because of the necessity for development of torque. commutation. electromechanical energy conversion. generation of voltage. development of torque. commutation. electromechanical energy conversion. generation of voltage. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What is the highest possible speed of turbo alternators? 4000 rpm 1500 rpm 1000 rpm 3000 rpm 4000 rpm 1500 rpm 1000 rpm 3000 rpm ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Maximum power developed in a cylindrical synchronous machine depends on excitation synchronous reactance both 1and 2 load angle excitation synchronous reactance both 1and 2 load angle ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines What is power factor of a 3 - φ induction motor at no load? High. Low. Equal to 1. Same as full load. High. Low. Equal to 1. Same as full load. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Two synchronous generators operating in parallel 200 MW and 400 MW respectively. The drooping characteristics of their governors are identical as 4% from no load to full load. Consider the governors operating at 50Hz on no load. How will the machine share, if the load is 600 MW? generator 2 gets over load 200 MW and 400MW respectively generator 1 gets over load 230.7 MW and 369.23 MW respectively generator 2 gets over load 200 MW and 400MW respectively generator 1 gets over load 230.7 MW and 369.23 MW respectively ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In above question, the output power delivered by generator G1 and G2 will be 9.3 kW, 9.3 kW. 5.7 kW, 8.7 kW. 9.6 kW, 12 kW. 6.3 kW, 9.3 kW. 9.3 kW, 9.3 kW. 5.7 kW, 8.7 kW. 9.6 kW, 12 kW. 6.3 kW, 9.3 kW. ANSWER DOWNLOAD EXAMIANS APP
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