Environmental Considerations Flashcards
7 cards from real G60 practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Environmental Considerations flashcards as text
What minimum distance must flammable gas cylinders be kept from open flames or heat sources during storage?
Answer: 20 feet
NFPA standards require flammable gas cylinders to be stored at least 20 feet from open flames, heat sources, or oxidizing gases.
When torch work is performed on an occupied building, what environmental notification requirement typically applies?
Answer: Building occupants and management must be notified before torch work begins
Building occupants and management must be informed before torch work begins so they can take precautions and evacuate if necessary.
What is the environmental risk of using a torch in an area where insulation materials are present?
Answer: Many insulation materials are combustible and can smolder undetected after torch work
Many insulation materials, including fiberglass batting and foam board, are combustible and can be ignited or smolder for hours after torch exposure.
How should a torch operator respond if the surrounding air temperature drops below freezing during outdoor operations?
Answer: Be aware that regulator freeze-up can affect gas flow and monitor pressure carefully
Regulators and gas lines can freeze in very cold conditions, causing erratic gas flow and potential hazards, requiring close monitoring.
Which of the following materials is most likely to be ignited by the secondary heat plume rising from a torch flame?
Answer: Overhead wood joists or framing
Heat rises, so overhead wood framing or joists are at significant risk of ignition from the rising heat plume produced by torch operations below them.
What action must be taken when flammable gas cylinders show signs of corrosion or physical damage?
Answer: Remove the cylinder from service immediately and contact the supplier
Damaged or corroded cylinders pose a serious explosion risk and must be immediately removed from service and returned to the supplier for inspection.
What is the primary reason flammable gas torch work is prohibited in sprinklered buildings without specific precautions?
Answer: Torch heat can activate sprinklers, causing water damage, or the sprinklers may fail to control a fire started by torch work
Torch work can accidentally activate sprinklers causing water damage, or more critically, a torch-ignited fire may exceed the sprinkler system's designed control capacity.