🔍 Key Concepts

• MODU fire main system requirements in 46 CFR (fire pumps on Mobile Offshore Drilling Units) • Use of a fire pump for dual service (firefighting and other purposes) • Requirement that sufficient fire pump capacity and immediate availability for firefighting be maintained

💭 Think About

• Which option best ensures that the MODU will still have an immediately available fire pump dedicated to the fire main system? • Look at which answers add extra conditions versus which one contains the essential minimum requirement for safe dual use of a fire pump. • Ask yourself: Does the regulation require pressure-reducing stations or the absence of relief valves as a condition to using a fire pump for other purposes, or is there a more basic availability requirement?

✅ Before You Answer

• Verify in 46 CFR MODU fire protection regulations what they say about fire pumps used for other purposes. • Check whether the regulation explicitly mentions reducing stations with pressure gages as a condition for dual-use of a fire pump. • Confirm if the rule ever states that relief valves must NOT be installed in order to use a fire pump for other purposes.