Which of the following improper operation is least likely cause exposure to toxic fumes?
A) Flare pilot or burner not lit
B) Failure to line up purge gas to flare stack
C) Refrigerant leak
D) Loss of lubrication on equipment
Answer: D
Explanation: A) Incorrect. Flare pilot or burner not lit can cause exposure to toxic fumes.
B) Incorrect. Failure to line up purge gas to flare stack can cause exposure to toxic fumes.
C) Incorrect. Refrigerant leak can cause exposure to toxic fumes.
D) Correct. Loss of lubrication on equipment would not cause exposure to toxic fumes.
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