Acetylene gas not explosive: true or false?
Quick acetylene gas quiz on safety myths and facts. Instant results.
This quiz helps you check facts about acetylene explosiveness, safe torch setup, and basic first aid. Practice spotting myths, get answers in seconds, and follow up with our acetylene safety quiz, fire safety true or false, and OSHA hazard communication quiz. It is quick and clear, so you can focus on safer work.
Study Outcomes
- Understand Acetylene Gas Risks -
Understand the combustible nature of acetylene gas and correctly determine whether statements like "acetylene gas is not explosive" are true or false.
- Apply Oxygen-Acetylene Welding Protocols -
Apply standardized safety measures when setting up and operating oxygen-acetylene welding equipment, including proper gear selection and leak checks.
- Identify and Administer First Aid for Welding Burns -
Identify various welding burn injuries and perform immediate first aid steps to minimize damage and promote safe recovery.
- Analyze Welding Safety True/False Scenarios -
Analyze a series of welding safety true/false questions to reinforce critical thinking and hazard recognition skills in real-world situations.
- Demonstrate Emergency Response for Gas Leaks -
Demonstrate the appropriate emergency procedures to handle acetylene gas leaks, ensuring swift and safe resolution of potential hazards.
Cheat Sheet
- Acetylene Gas Explosiveness -
Despite the "acetylene gas is not explosive true false" myth, acetylene is highly explosive between 2.5% and 100% concentration in air (NFPA 51B). Always treat cylinders as live sources and store them upright in a well-ventilated area. Recall the reaction formula C₂H₂ + 2.5 O₂ → 2 CO₂ + H₂O to appreciate the energy release.
- Flashback Arrestors & Check Valves -
Flashback arrestors stop flame propagation into hoses and cylinders, adhering to ISO 5175 or CGA V-1 standards. A handy mnemonic is "ACE" (Arrestors, Check valves, Exhaust back”pressure protection). Regularly inspect and replace these safety devices every 6-12 months.
- Personal Protective Equipment (PPE) -
Welding safety quizzes emphasize PPE: ANSI Z49.1 recommends flame”resistant jackets, auto”darkening helmets (shade 10 - 13), leather gloves, and steel”toed boots. Remember "Helmet, Gloves, Jacket, Boots" to cover all major hazards. Proper PPE prevents UV burns, sparks, and molten metal contact.
- Oxygen-Acetylene Welding Ratios -
Maintain a neutral flame at a 1:1 to 1:2 O₂:C₂H₂ ratio to avoid carburizing (excess acetylene) or oxidizing (excess oxygen) flames. A neutral flame has a clear inner cone about 1/8" long and is ideal for most welds. Use the "Inner cone check" trick: if the cone swallows the base metal, reduce acetylene slightly.
- First Aid for Welding Burns -
Apply the "S.T.O.P." method: Stop the heat source, Thoroughly cool with lukewarm water for 10 - 20 minutes, Over-the-counter pain relief, and Protect with a sterile, non-adhesive dressing (FDA guidelines). For third-degree burns or chemical burns, seek immediate medical attention. Keep burn creams and dressings in your on-site first aid kit.