What is TRUE of pressure/vacuum valves?

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Question 1 of 205eccef9cbacbc34ba4d45c12

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What is TRUE of pressure/vacuum valves?

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🔍 Key Concepts

• Pressure/vacuum (P/V) valves purpose on cargo tanks • Relationship between P/V valves and P/V breakers in the venting system • Standard maintenance and inspection expectations for safety devices

💭 Think About

• Think about what normally causes small pressure changes in a closed cargo tank and how the system handles them. • Consider which device should act first in normal operation: the P/V valve or the P/V breaker? Why would that order be safer? • Ask yourself whether safety‑critical valves on cargo tanks are typically left alone or kept in reliable condition by routine care.

✅ Before You Answer

• Verify which component is intended to handle routine, small volume breathing of the tank atmosphere. • Confirm that the set points for P/V valves are arranged so they act before any backup or emergency devices. • Remember that industry practice and regulations generally require regular inspection and cleaning of critical safety valves—check which options reflect that.

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Question 1 of 20

What is TRUE of pressure/vacuum valves?

They are designed to provide for the flow of small volumes of tank atmospheres caused by thermal variations in a cargo tank.

They should operate in advance of the pressure/vacuum breakers.

They should be kept in good working order by regular inspection and cleaning.

All of the above.

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Question 1 / 205eccef9cbacbc34ba4d45c12

Question 1 of 205eccef9cbacbc34ba4d45c12

What is TRUE of pressure/vacuum valves?

Back

Question 1 of 20

5eccef9cbacbc34ba4d45c12

What is TRUE of pressure/vacuum valves?

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?

Quick actions

— No credit card needed