Which of the following hazards can cause loss of downstream equipment use?
A. Failing to purge the firebox
B. Poor control of excess air
C. Loss of boiler feedwater
D. Loss of fuel gas or oil
A. Incorrect. Failing to purge the firebox does not cause loss of downstream equipment use.
B. Incorrect. Poor control of excess air does not cause loss of downstream equipment use.
C. Incorrect. Loss of boiler feedwater does not cause loss of downstream equipment use.
D. Correct. Loss of fuel gas or oil can cause loss of downstream equipment use.
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