If the centrifugal switch or relay used for cutting out the starting winding of a split-phase induction motor fails to open once the motor is in operation, what will be the result?

Correct Answer: Option B — the starting winding will burn out

Split-phase starting windings use fine wire with high resistance, designed exclusively for short-duration starting duty. If the centrifugal switch fails to open, continuous current flow causes rapid overheating and thermal destruction of the start winding, adhering to IEEE 45 motor protection principles.