Question 297Navigation General

The correct answer is C) Any of these signals is considered a valid response. The U.S. Coast Guard's navigation rules state that when a vessel requests a drawbridge to open by sounding the appropriate signal, the bridge tender must respond with five short blasts of the horn. This five-blast signal from the bridge indicates that the request has been received and that the bridge will be opened. The vessel can then respond in any of the ways listed, including A) confirming the response on the radiotelephone, B) raising and lowering a white flag, or D) sounding five short blasts themselves. All of these are considered valid responses to the bridge's five-blast signal.