🔍 Key Concepts

• SOLAS Chapter II-1, Regulation 26 – Starting air arrangements and protection against starting air line explosions • Relationship between cylinder bore size and requirements for bursting discs/relief devices • Difference between starting air system components and exhaust or lubrication systems

💭 Think About

• Identify which answer choices are talking about starting air lines/manifolds versus unrelated systems like exhaust or lubrication • Think about why a bursting disc or flame arrestor is required when the cylinder bore exceeds 230 mm – what specific hazard is it addressing? • For direct-reversing engines with a main starting air manifold, consider where an explosion could travel and where protection would be most effective

✅ Before You Answer

• Verify which options specifically mention the starting air manifold or cylinder starting valves, not exhaust or lube systems • Check SOLAS II-1/26 language about the location of relief devices or bursting discs for engines with cylinder bore greater than 230 mm • Eliminate any answers that place the bursting disc in systems handling exhaust gases or lubricating oil vapors, since the rule you’re being tested on is about starting air line explosions