Which of the following listed pressures is...

Question 1 / 270705eccef9bbacbc34ba4d45346

Question 1 of 270705eccef9bbacbc34ba4d45346

Which of the following listed pressures is the maximum acetylene gas pressure that can be safely used in gas welding?

Question 1 of 27070

Which of the following listed pressures is the maximum acetylene gas pressure that can be safely used in gas welding?

🔍 Key Concepts

• Acetylene gas stability and decomposition at higher pressures • Recommended maximum working pressure for acetylene in service lines (not cylinder pressure) • Difference between cylinder storage pressure and regulator/torch operating pressure

💭 Think About

• Think about what happens to acetylene when its pressure becomes too high and why special warning labels are placed on acetylene cylinders. • Which pressure range is generally taught in welding safety courses as the upper safe limit at the torch? • Among the choices, which value is closest to the commonly cited maximum safe working pressure for acetylene before the risk of unstable decomposition becomes unacceptable?

✅ Before You Answer

• Verify which pressure value is commonly referenced in welding safety standards as the maximum safe operating (working) pressure of acetylene at the regulator/torch. • Check that you are not confusing cylinder storage pressure (hundreds of psi) with line/torch operating pressure (low psi). • Confirm from a trusted source that acetylene should not be used above a certain psi because it can become unstable and may decompose explosively.

Question 1 of 27070

Which of the following listed pressures is the maximum acetylene gas pressure that can be safely used in gas welding?

10 psi

15 psi

25 psi

35 psi