All fire hoses on a mobile offshore drilling units must be tested to a pressure of at least __________.
⢠46 CFR requirements for MODU fire protection rather than for regular inspected vessels ⢠Difference between working pressure and test pressure for fire hoses ⢠The typical safety margin used when testing hoses above their normal operating pressure
⢠Is the required test pressure usually just equal to normal operating pressure, or some percentage above it for safety? ⢠Think about whether MODUs, due to higher risk offshore, would likely require a higher or lower test pressure than standard shipboard hoses. ⢠Compare these options to what you know about common fire main pressures on board. Which value looks more like a test pressure rather than normal service pressure?
⢠Verify the specific 46 CFR subchapter for Mobile Offshore Drilling Units rather than general cargo/passenger vessel rules. ⢠Check whether the regulation says "at least" a certain psi, not "about" or "approximately". ⢠Make sure you are looking at the requirement for all fire hoses on MODUs, not just for one special location (e.g., helicopter deck).
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