If a three-phase induction motor malfunctions and drops to a single-phase (one supply line open), what would be the result?

Correct Answer: Option A — the motor will continue to run if it is not heavily loaded

A three-phase induction motor operating on two phases (single-phasing) will continue to run if the load is light, as the rotating magnetic field is maintained by the remaining phases. However, the motor will experience increased vibration, overheating, and reduced torque, eventually leading to winding failure if the load is not reduced.