Electrical Machines When Flemings right hand rule to find the direction of induced emf, the thumb points towards opposite to the direction of motion of the conductor. direction of flux. direction of induced emf. direction of motion of the conductor. opposite to the direction of motion of the conductor. direction of flux. direction of induced emf. direction of motion of the conductor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The interpoles in dc machines have a tapering shape in order to increase the acceleration of commutation economise on the material required for interpoles and their windings reduce the saturation in the interpole reduce the overall weight increase the acceleration of commutation economise on the material required for interpoles and their windings reduce the saturation in the interpole reduce the overall weight ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following alternators contain large number of poles? Aame in both alternators. Hydro alternators. None of these Turbo alternators. Aame in both alternators. Hydro alternators. None of these Turbo alternators. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Skewing of the rotor in a 3 - Φ squirrel cage induction motor reduces noise and parasitic torque, but increase starting and pull-out torque. noise, parasitic and starting torque, but increase pull out torque. noise and pullout torque, but increase parasitic and starting torque. noise, parasitic torque, starting torque and pull out torque. noise and parasitic torque, but increase starting and pull-out torque. noise, parasitic and starting torque, but increase pull out torque. noise and pullout torque, but increase parasitic and starting torque. noise, parasitic torque, starting torque and pull out torque. 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? 200 MW and 400MW respectively 230.7 MW and 369.23 MW respectively generator 2 gets over load generator 1 gets over load 200 MW and 400MW respectively 230.7 MW and 369.23 MW respectively generator 2 gets over load generator 1 gets over load ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following is/are effects of armature reaction? All of these increases the design cost increase the iron loss increase the maintenance and repair All of these increases the design cost increase the iron loss increase the maintenance and repair ANSWER DOWNLOAD EXAMIANS APP
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