G60 Personal Protective Equipment and Work Area Setup 2 — Questions and Answers
Question 1: What is the minimum safe distance cylinders should be kept from the actual torch flame during operations?
- At least 10 feet (approximately 3 meters) (Correct answer)
- At least 2 feet (approximately 0.6 meters)
- At least 25 feet (approximately 7.5 meters)
- Cylinders can be directly adjacent to the work
Correct answer: At least 10 feet (approximately 3 meters)
Gas cylinders must be kept at least 10 feet from open flames or any heat source to prevent heat buildup that could dangerously increase internal cylinder pressure.
Question 2: How must gas cylinders be secured during storage and use?
- Chained or strapped upright to a wall, post, or cylinder cart (Correct answer)
- Laid horizontally to prevent tipping
- Stored loosely in groups so they support each other
- No restraint is needed if the cylinder caps are on
Correct answer: Chained or strapped upright to a wall, post, or cylinder cart
Cylinders must always be chained or strapped in an upright position to prevent them from falling, which can damage the valve and cause an uncontrolled release of pressurized gas.
Question 3: What action must be taken before moving a gas cylinder from one location to another?
- Close the valve, remove the regulator, and replace the valve protection cap (Correct answer)
- Simply roll the cylinder on its bottom edge with the valve open
- Disconnect only the hose and leave the regulator attached
- Open the valve slightly to verify gas pressure before moving
Correct answer: Close the valve, remove the regulator, and replace the valve protection cap
Before moving a cylinder, close the valve completely, remove the regulator to protect it from damage, and replace the protective valve cap to guard the valve during transport.
Question 4: Why must oxygen and fuel gas cylinders be stored separately?
- To prevent a leak from one type reaching the other and creating a flammable mixture (Correct answer)
- Because their colors make them confusing when stored together
- To comply with weight distribution requirements
- To make it easier to count inventory
Correct answer: To prevent a leak from one type reaching the other and creating a flammable mixture
Oxygen and fuel gas cylinders must be separated by at least 20 feet or a 5-foot non-combustible firewall because a fuel gas leak could create a combustible atmosphere ignited by the oxygen.
Question 5: What type of signage is required at the entrance to an area where flammable gas torch work is being performed?
- Warning signs prohibiting smoking and open flames, and identifying the hazard (Correct answer)
- No signage is required for temporary torch operations
- Only an equipment list for emergency responders
- Signs are only required in enclosed spaces, not open work areas
Correct answer: Warning signs prohibiting smoking and open flames, and identifying the hazard
The work area entrance must be marked with warning signs prohibiting smoking and identifying the flammable gas hazard to alert others before they enter.
Question 6: What must be present in the immediate work area before torch operations begin?
- An appropriate fire extinguisher rated for the potential hazards present (Correct answer)
- A bucket of water is sufficient for all torch operations
- No extinguisher is needed if the fire watch is posted
- Only a phone to call 911 in an emergency
Correct answer: An appropriate fire extinguisher rated for the potential hazards present
An appropriate fire extinguisher — typically a dry chemical or CO2 type rated for the combustible materials present — must be immediately accessible in the torch work area.
G60 Personal Protective Equipment and Work Area Setup 2
What is the minimum safe distance cylinders should be kept from the actual torch flame during operations?