Question 53 RVR05 - Master of LT 100 GRT

The Correct Answer is D The correct answer is D) The scuppers shall have a mechanical means of closing. This requirement is stipulated by maritime safety and pollution prevention regulations, such as those related to MARPOL (International Convention for the Prevention of Pollution from Ships) and various flag state rules (like USCG regulations). Scuppers and drains in enclosed deck areas (especially those exposed to hazardous cargo, oil, or bilge areas) must be controllable to prevent the discharge of pollutants overboard in an uncontrolled manner. A mechanical means of closing (such as a valve, gate, or hinged plate operated by a lever or handle) ensures the crew can rapidly and reliably secure the drainage system to contain spills or accumulated contaminated water until it can be properly processed (e.g., pumped to a slop tank or bilge system). **Why the other options are incorrect:** * **A) The scuppers must be a soft rubber plug:** While rubber plugs might be used for temporary or secondary sealing, they do not meet the regulatory requirement for a robust, permanent, and readily controllable closure mechanism necessary for pollution prevention on an active vessel. They are too easily dislodged, damaged, or lost. * **B) The scuppers must be wooden plugs:** Wooden plugs are an outdated and unreliable method for securing drainage systems. They are unsuitable for meeting modern pollution control standards that require durable, positive-sealing, and easily operable closures. * **C) The scuppers shall be a two-piece soft patch:** A soft patch (typically used for temporary damage control on hull plating or piping) is not a suitable or recognized method for permanently regulating scupper drainage in compliance with pollution regulations. They are meant for emergency repairs, not standard operational closures.