Electrical Machines Which slots are used in the rotor of an induction motor? None of above. Semi closed slots. Open slots. Closed slots. None of above. Semi closed slots. Open slots. Closed slots. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following bearings and their uses are correct ball bearings → small machines roller bearings → large machines both A and B neither 1 nor 2 ball bearings → small machines roller bearings → large machines both A and B neither 1 nor 2 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In 3 - Φ induction motor some times copper bars are placed deep in the rotor to improve efficiency. improve power factor. reduce copper loss. improve starting torque. improve efficiency. improve power factor. reduce copper loss. improve starting torque. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The slight curvature at the lower end of the OCC of a self excited DC generator is due to high field resistance. magnetic inertia. high speed. residual flux. high field resistance. magnetic inertia. high speed. residual flux. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Essential conditions for two DC generators are connecting for parallel operation is/are terminal voltage should be same. both A and B. polarities should be same. rating of generators should be same. terminal voltage should be same. both A and B. polarities should be same. rating of generators should be same. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The sequence of induction motor is RYB, then the direction of induction motor can be changed by which of the following sequence? BRY All of these BYR RBY BRY All of these BYR RBY ANSWER DOWNLOAD EXAMIANS APP
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