🔍 Key Concepts

• 46 CFR requirements for emergency diesel generators • Differences between alarm systems and cutoff (shutdown) systems • Protection of engines with forced lubrication systems (what failure is most critical?)

💭 Think About

• Ask yourself which lube oil condition, if not corrected immediately, can destroy a diesel engine in seconds rather than minutes. • Think about whether the regulation is focused on warning the crew or automatically stopping the emergency generator. • Consider which system is standard for most continuously monitored machinery: do we usually watch for pressure, level, or temperature for fast-acting protection?

✅ Before You Answer

• Verify in 46 CFR Part 112 (Emergency Lighting and Power Systems) what specific protective devices are mandated for emergency generators. • Check whether the rule calls for an alarm, a shutdown, or both for the lube oil system. • Confirm whether the cited CFR text mentions pressure or level as the monitored variable for lubrication protection.