🔍 Key Concepts

• 46 CFR requirements for hydrostatic tests of main steam piping • What parts of the steam line are considered part of the main steam piping system • Specific details in 46 CFR about test extent, duration, and exceptions

💭 Think About

• Think about which option sounds like a very specific regulatory requirement, not a general practice or a guessable safety idea. • Ask yourself: does Coast Guard regulation usually require more inspection and testing, or provide broad exemptions for large, critical piping? • Consider which answer describes exactly where the test is applied, rather than how long it lasts or how much insulation is removed.

✅ Before You Answer

• Verify in 46 CFR whether there is any mention of a minimum time duration for holding hydrostatic pressure on main steam piping. • Check if 46 CFR gives any size-based exemption (e.g., six inches or more) from hydrostatic testing of main steam pipes. • Look for wording in 46 CFR that describes the extent of piping covered by the main steam hydrostatic test (e.g., between which two components).