Practice question

Which indicator is MOST associated with imminent BLEVE risk?

  1. Stable relief valve operation and steady flame from the burner
  2. Discoloration, bulging of the tank shell, and an increasingly higher-pitched relief valve sound
  3. Tank surface that is cool to the touch
  4. Steady tank pressure as measured remotely

Answer: B — Discoloration, bulging of the tank shell, and an increasingly higher-pitched relief valve sound

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