Confined Space Quiz

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Workplace Safety > Confined Space Quiz > Question 8

Question
8
Q
Atmospheres that contain a flammable component above what percent of its Lower Explosive Limit (LEL) are considered hazardous for confined space entry?
  • (A)  10 percent
  • (B)  7.5 percent
  • (C)  5 percent
  • (D)  2.5 percent
Give me a hint
Hint:
"Five will get you ___”
A
Show me the Answer
Correct answer is:
  • (A)  10 percent
Explanation:
Atmospheres with a concentration of flammable vapors at or above 10 percent of the lower explosive limit (LEL) are considered hazardous when located in confined spaces.
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