Which ABYC standard specifies minimum clean agent fire extinguisher sizes for various engine compartment sizes?

The correct answer relates to the ABYC Standard A-4, which specifically addresses fire safety for marine electrical systems. This standard includes guidelines on the installation and use of clean agent fire extinguishers, particularly focusing on the sizing requirements for different engine compartment sizes. According to Table IV of this standard, minimum extinguisher sizes are clearly outlined, ensuring adequate fire safety measures are in place to handle potential fire hazards associated with engine compartments.

This standard is crucial for marine safety because engine compartments can pose significant fire risks due to fuel and oil accumulations. Therefore, having the appropriate size fire extinguisher as specified in A-4 helps ensure that vessels are prepared to handle emergency situations effectively.

Other choices do not focus on fire extinguisher sizes specific to engine compartments. For instance, B-7 covers fire protection systems but with different specifications, C-3 pertains to electrical systems and does not address extinguishers for engine compartments, and D-2 primarily deals with fire safety standards related to fire detection and alarm systems, rather than direct extinguisher sizing requirements.