Question 12 OSV02 - Mate - Offshore Supply Vessels

The Correct Answer is A Option A ("take all way off, if necessary") is correct because it directly addresses the requirements of Rule 19(e) of the International Regulations for Preventing Collisions at Sea (COLREGS), which governs conduct in restricted visibility. Rule 19(e) mandates that if a vessel detects the presence of another vessel forward of the beam and believes that a risk of collision exists, it shall take appropriate action to avoid collision. This action includes, but is not limited to, reducing speed to the minimum at which she can be kept on her course, or if necessary, taking all her way off. **Why the other options are incorrect:** * **B) stop your engines:** While stopping the engines might be part of the action to take all way off, Rule 19(e) specifically requires reducing speed or taking all way off, which can sometimes be accomplished without completely stopping the engines (e.g., placing them in neutral or using minimum revolutions). Stopping the engines is not the *required* action; taking off way is the required outcome. * **C) begin a radar plot:** While good seamanship dictates beginning a radar plot immediately when risk of collision exists and conditions permit (especially in restricted visibility where this knowledge is crucial), COLREGS Rule 19 primarily focuses on the *maneuvering* action required when collision risk is identified forward of the beam. Plotting is a necessary tool for situational assessment (Rule 7 and 19(d)), but the immediate *required action* for avoiding collision when risk is established is to reduce speed/take off way (Rule 19(e)). * **D) All of the above:** Since B and C are not the singular, mandated action specified by Rule 19(e) when risk of collision is confirmed forward of the beam, this option is incorrect.