Question

question 95 of 100 · multiple choice
when using a oxy-acetylene torch, the acetylene pressure should never be set above?
a 15 psi
b 10 psi
c 20 psi

Explanation:

Identify the maximum safe working pressure for acetylene gas

Acetylene gas becomes highly unstable and volatile at pressures exceeding \(15\text{ psi}\) (\(103\text{ kPa}\)) in its gaseous state, which can lead to explosive decomposition.

Match with the given options

The maximum safe limit is \(15\text{ psi}\), which corresponds to option A.

Answer:

• (A) 15 psi (Correct answer)
• (B) 10 psi
• (C) 20 psi