Question 86Electricity & Electronics - Assistant Engineer

The correct answer is D) a spring set brake. In the event of a power failure during cargo loading operations, the movement of an electric powered cargo winch will be stopped by a spring set brake. This type of brake is designed to automatically engage when power is lost, preventing the load from uncontrolled movement. The spring set brake is a fail-safe mechanism that ensures the cargo winch remains stationary until power is restored or the brake is manually released. The other options are incorrect because: A) a manual override switch would require the operator to take action, which may not be possible during a power failure; B) a hand-operated band brake would require manual intervention; and C) the weight of the load on the boom alone would not stop the winch's movement.