Question 268Steam Plants - Assistant Engineer

The correct answer is A) They should be removed, cleaned and stored in the rack on the burner bench. This is the proper procedure for unused burners during low load conditions to ensure they are well-maintained and ready for future use. Removing the unused burners, cleaning them, and storing them properly on the burner bench keeps them in good condition and prevents any issues that could arise from leaving them in place, such as fouling or potential damage. The other options are incorrect because B) and C) involve leaving the unused burners in place, which is not the recommended practice, and D) suggests modifying the burners, which is unnecessary during low load conditions.