Question 1271Deck General70% to pass
According to the regulations, to prevent excessive pressure buildup in cargo tanks containing LFG, they are fitted with _______________.
AI Explanation
The correct answer is D) safety relief valves.
According to the regulations, cargo tanks containing liquefied flammable gases (LFG) are fitted with safety relief valves to prevent excessive pressure buildup. These valves are designed to automatically open at a predetermined pressure to release the excess pressure and prevent tank rupture or failure. This is a critical safety feature required by the regulations to ensure the safe handling and transportation of LFG cargoes.
The other options are incorrect because: A) flame screens are not used for pressure relief, B) excess flow valves are used to prevent excessive flow in the event of a line rupture, and C) pressure vacuum relief valves are used to allow air/vapor exchange during loading and unloading, not for pressure relief.
Related Questions
#1269 The piping that routes an oil cargo from the manifold directly to a cargo tank and serves only one tank is known as a _______________.#1270 According to the regulations, normally, manholes in LFG tanks are located _______________.#1272 Ullage measurements are taken from the top of the liquid to which of the following points? #1273 Sounding tubes and access openings for fuel oil tanks on cargo vessels are permitted by U.S. regulations to be located in which of the listed spaces? #1274 Where are ullages measured from?