What improper operation can cause burn, injuries, or death?
A) Bypassing safety interlocks
B) Failure to follow flame safety procedure
C) Poor control of excess air and draft control
D) All of the above
Answer: D
Explanation: A) Incorrect. Bypassing safety interlocks, failure to follow flame safety procedure, and poor control of excess air and draft control can cause burn, injuries, or death.
B) Incorrect. Bypassing safety interlocks, failure to follow flame safety procedure, and poor control of excess air and draft control can cause burn, injuries, or death.
C) Incorrect. Bypassing safety interlocks, failure to follow flame safety procedure, and poor control of excess air and draft control can cause burn, injuries, or death.
D) Correct. Bypassing safety interlocks, failure to follow flame safety procedure, and poor control of excess air and draft control can cause burn, injuries, or death.
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