Practice Test Geeks(G60) Certificate of Fitness for Torch Use of Flammable Gases Practice Test
← All G60 Flashcard Decks

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

  1. When using a flammable gas torch near a drain or sewer opening, what is the primary environmental concern?

    Answer: Vapors can travel along drains and ignite remotely

    Flammable gas vapors are heavier than air and can flow into drains, traveling to distant ignition sources and causing remote explosions.

  2. Which weather condition most significantly increases the hazard when using a torch outdoors?

    Answer: Low wind speed or still air

    Still air allows flammable gas vapors to accumulate near the work area rather than dispersing, increasing the risk of ignition.

  3. What environmental precaution must be taken before torch work on a roof with bituminous materials?

    Answer: Check for combustible materials in the space below

    Heat from torch work can conduct through the roof deck and ignite combustibles stored or present in the space directly below.

  4. How should empty flammable gas cylinders be stored after torch work is complete?

    Answer: Upright, capped, outdoors in a ventilated area away from heat sources

    Empty cylinders still contain residual gas and must be stored upright with valve caps on in ventilated outdoor areas away from heat sources.

  5. What is the recommended action if torch work must be performed near plastic or PVC piping?

    Answer: Shield or remove the piping before torch work begins

    PVC and plastic pipes can release toxic fumes when heated and should be shielded or temporarily removed before torch work.

  6. Which of the following best describes the 'fire watch' requirement after torch operations are completed?

    Answer: A minimum 30-minute watch, with the area checked for smoldering materials

    FDNY and NFPA standards typically require a fire watch of at least 30 minutes after torch operations to detect smoldering or delayed ignition.

  7. What environmental factor must be evaluated when storing gas cylinders on a job site in summer months?

    Answer: Cylinders must not be exposed to temperatures exceeding 125°F (52°C)

    Excessive heat raises cylinder pressure and can cause pressure relief valves to open or cylinders to fail, so storage above 125°F is prohibited.