Question 904Rules of the Road90% to pass
BOTH INTERNATIONAL & INLAND You do NOT understand the course or intention of an approaching vessel. Which signal should you sound?
AI Explanation
The correct answer is D) Sound not less than five short blasts.
According to the navigation rules, if you do not understand the course or intention of an approaching vessel, both under international and inland rules, you should sound not less than five short blasts on the whistle. This signal indicates doubt or uncertainty about the other vessel's actions and is meant to alert the other vessel that you are unsure of their intentions, prompting them to take appropriate action.
The other options are incorrect because they do not match the required signal for this situation. Sounding one short blast (A) or one prolonged blast (C) are used for different purposes, while sounding five prolonged blasts (B) would indicate an emergency situation, which is not the case here.
Related Questions
#902 BOTH INTERNATIONAL & INLAND You are underway in a narrow channel and you are being overtaken by a vessel astern. The overtaking vessel sounds a signal indicating his intention to pass your vessel on your starboard side. If such an action appears dangerous, which signal should you sound? #903 BOTH INTERNATIONAL & INLAND You are on a vessel nearing a bend in the channel where, because of the height of the bank, you cannot see a vessel approaching from the opposite direction. Which signal should you sound? #905 BOTH INTERNATIONAL & INLAND A vessel nearing a bend or an area of a channel or fairway where other vessels may be obscured by an intervening obstruction shall sound which signal? #906 BOTH INTERNATIONAL & INLAND A vessel nearing a bend where other vessels may be obscured is required to sound which signal? #907 BOTH INTERNATIONAL & INLAND Which is TRUE concerning the danger signal?