Coast Guard Regulations (46 CFR) prohibit...

Question 1 / 270705eccef9abacbc34ba4d450eb

Question 1 of 270705eccef9abacbc34ba4d450eb

Coast Guard Regulations (46 CFR) prohibit which of the following pipe fittings from being installed in fuel oil service discharge piping?

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Question 1 of 27070

Coast Guard Regulations (46 CFR) prohibit which of the following pipe fittings from being installed in fuel oil service discharge piping?

🔍 Key Concepts

• 46 CFR fuel oil system piping requirements • Differences between standard pipe fittings versus special-change-of-direction fittings • Why certain fittings are more prone to leakage or failure in vibration/heat

💭 Think About

• Think about which type of fitting is most likely to be mechanically weaker or more prone to leakage under vibration and thermal cycling in a fuel oil discharge line. • Consider which fittings are normally accepted and commonly seen in approved fuel oil piping systems on inspected vessels. • Ask yourself which fitting creates the greatest risk if it fails suddenly in a high‑pressure, flammable liquid system.

✅ Before You Answer

• Check 46 CFR requirements for fuel oil service and discharge piping to see which fittings are specifically restricted or prohibited. • Identify which fittings are expressly permitted (like certain unions or flanged connections) and which are not. • Verify which fitting type may be considered an eccentric or non-standard change-of-direction fitting that can concentrate stress in the line.

Question 1 of 27070

Coast Guard Regulations (46 CFR) prohibit which of the following pipe fittings from being installed in fuel oil service discharge piping?

Pipe unions

Screwed bonnet valves

Street ells

Bolted flange joints

Question 1 / 270705eccef9abacbc34ba4d450eb

Question 1 of 270705eccef9abacbc34ba4d450eb

Coast Guard Regulations (46 CFR) prohibit which of the following pipe fittings from being installed in fuel oil service discharge piping?

Back

Question 1 of 27070

Coast Guard Regulations (46 CFR) prohibit which of the following pipe fittings from being installed in fuel oil service discharge piping?