Vapor recovery hoses must be tested yearly...

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Question 1 of 2066636ee728f7522a1c518ea4

Vapor recovery hoses must be tested yearly at what ratio to their maximum allowable working pressure?

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Question 1 of 20

66636ee728f7522a1c518ea4

Vapor recovery hoses must be tested yearly at what ratio to their maximum allowable working pressure?

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🔍 Key Concepts

• Maximum Allowable Working Pressure (MAWP) vs. test (or proof) pressure • Specific CFR requirements for vapor control systems and hoses (see 33 CFR Part 154, Subpart E) • Difference between hose test pressures for cargo transfer hoses and vapor recovery hoses

💭 Think About

• Think about how much higher a test pressure usually is compared to the normal working pressure for safety, but not so high that it damages the hose. • Recall the common safety factor used when hydrostatically testing hoses that are already in service (not being manufactured). • Ask yourself: is the annual test pressure for vapor hoses typically just equal to MAWP, moderately higher, or several times higher than MAWP?

✅ Before You Answer

• Verify in the CFR for vapor control systems the exact multiple of MAWP required for the annual test of vapor recovery hoses. • Make sure you are looking at the requirement for yearly (in-service) testing, not initial fabrication or certification tests. • Confirm that the ratio you pick is a practical safety factor commonly used in industry hose pressure tests (not unrealistically low or excessively high).

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Question 1 of 20

Vapor recovery hoses must be tested yearly at what ratio to their maximum allowable working pressure?

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Question 1 / 2066636ee728f7522a1c518ea4

Question 1 of 2066636ee728f7522a1c518ea4

Vapor recovery hoses must be tested yearly at what ratio to their maximum allowable working pressure?

Back

Question 1 of 20

66636ee728f7522a1c518ea4

Vapor recovery hoses must be tested yearly at what ratio to their maximum allowable working pressure?

No comments yet

Be the first to share your thoughts!

If the question has a related picture, it will appear here.

🔍 Key Concepts

💭 Think About

✅ Before You Answer

👋 Hi! I'm Genie, your AI study assistant. How can I help you with this question?

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