Question 45 GLI05 - Master or Mate of LT 200 GRT

The Correct Answer is B **Explanation for Option B (One prolonged blast):** According to both the International Regulations for Preventing Collisions at Sea (COLREGs Rule 34(e)) and the Inland Rules (34(e)), a vessel nearing a bend or an area of a channel or fairway where other vessels may be obscured by an intervening obstruction is required to sound a specific warning signal. This signal is **one prolonged blast** (a blast of 4 to 6 seconds). This blast serves as an auditory warning to any obscured vessel that another vessel is approaching the blind turn or obstruction. Any approaching vessel that hears this signal is also required to reply with one prolonged blast. **Explanation for Incorrect Options:** * **A) One short blast:** A short blast (about one second) is primarily used under COLREGs/Inland Rule 34(a) to indicate a maneuver (e.g., "I intend to leave you on my port side" when meeting in a narrow channel, or indicating a change of course to starboard). It is not the required signal for approaching a blind bend. * **C) Two short blasts:** Two short blasts (each about one second) are used to indicate a different maneuver (e.g., "I intend to leave you on my starboard side" when meeting in a narrow channel, or indicating a change of course to port). It is not the signal for a blind bend. * **D) One long blast:** While "prolonged" and "long" are sometimes used interchangeably in colloquial marine language, the official terminology used in the rules is "one prolonged blast" (4-6 seconds). Furthermore, in a distress context, a continuous sounding of a fog signaling apparatus (which typically uses prolonged blasts) can be a distress signal. However, "one long blast" is not the designated or most accurate term for the specific signal required at a bend, making "one prolonged blast" the precise and correct regulatory answer.