If your vessel must pass through a draw during a scheduled closure period, what signal should you sound to request the opening of the draw?

Correct Answer: Option B — Five short blasts

Under 33 CFR 117.15, if a vessel requests a bridge opening during a scheduled closure period, the vessel must sound five short blasts. This signal serves as a formal request for the bridge operator to open the draw despite the established closure, provided the vessel's passage is urgent.