All oil-fired boilers, regardless of intended mode of operation, with automatic safety control systems must automatically close the burner valve when___________.
A
flame in boiler furnace is confirmed
B
actuated by boiler safety trip
C
burner is properly seated
D
starting trial for ignition occurs
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Question 1 / 205eccefa3bacbc34ba4d47c6a
Question 1 of 205eccefa3bacbc34ba4d47c6a
All oil-fired boilers, regardless of intended mode of operation, with automatic safety control systems must automatically close the burner valve when___________.
All oil-fired boilers, regardless of intended mode of operation, with automatic safety control systems must automatically close the burner valve when___________.