Answer Posted / hemant

In 3 PHASE type of induction motor we need to change only a
phase sequence of incoming supply so its sequence of phase
angle get change(0,120,-120 electrical degree) is
responsible to change electrical field produce by phase
hence direction of induced emf get revers so and so its
rotor rotate in revers direction, in case of single phase
motor diection may change by changing capacitor terminale
which across to supply voltage.

apti mainly on logical reasoning, verbal and non-verbal ability (70 percent) and remaining technical. I was in ee but technical had mech ques like on turbines and welding.

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