Coast Guard regulations (46 CFR) require the...

Question 1 / 270705eccef9cbacbc34ba4d45bfd

Question 1 of 270705eccef9cbacbc34ba4d45bfd

Coast Guard regulations (46 CFR) require the upper ends of sounding tubes, terminating at the weather deck, to be closed by a __________.

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Question 1 of 27070

Coast Guard regulations (46 CFR) require the upper ends of sounding tubes, terminating at the weather deck, to be closed by a __________.

🔍 Key Concepts

• 46 CFR requirements for construction and closure of sounding tubes on the weather deck • Purpose of sounding tubes: measuring tank levels while preventing ingress of water • Differences between a valve and a cap/cover in terms of operation and failure risk

💭 Think About

• Which option would be simplest and most reliable in rough weather, with the least chance of being accidentally left open? • Would the Coast Guard prefer a fitting that requires frequent manipulation (like a valve) or one that is normally kept tight and only briefly removed when sounding? • Think about how you actually use a sounding tube: do you normally open a valve or remove something, then immediately put it back on?

✅ Before You Answer

• Check 46 CFR sections dealing with sounding pipes/tubes for the exact closure type required at the weather deck termination • Verify which choice is explicitly named in the regulation text, not just what seems practical • Confirm that the required closure method provides a watertight barrier when not in use

Question 1 of 27070

Coast Guard regulations (46 CFR) require the upper ends of sounding tubes, terminating at the weather deck, to be closed by a __________.

quick-closing valve

screwed cap

globe valve

self-closing gate valve