Acetylene should never be used at pressures...

Acetylene should never be used at pressures...

Question 1 of 270705eccef9bbacbc34ba4d45344

Acetylene should never be used at pressures in excess of 15 psig because the __________.

Question 1 of 27070

Q

Acetylene should never be used at pressures in excess of 15 psig because the __________.

🔍 Key Concepts

• chemical stability of acetylene at different pressures • difference between gas properties and cylinder safety devices (fusible plugs, relief valves) • what happens to acetylene when it is subjected to shock or rapid decomposition at higher pressures

💭 Think About

• Ask yourself: is the 15 psig limit mainly about the cylinder hardware rating, or about the behavior of the gas itself above that pressure? • Consider what makes acetylene unique compared to other fuel gases like propane or natural gas in terms of stability. • Which option describes a risk that would exist even if the cylinder and its safety devices were perfectly built and not malfunctioning?

✅ Before You Answer

• Distinguish between mechanical protection devices (plugs, valves) and the inherent instability of acetylene. • Verify whether 15 psig is a maximum working pressure for the cylinder or a recommended limit for the use of acetylene gas in equipment. • Focus on which choice refers to the fundamental hazard of acetylene itself rather than to a specific safety component.