Question 26Steam Plants - QMED70% to pass
Which statement is true concerning the operation of item 12 on the illustrated air register and burner assembly? Illustration SG-0016
AI Explanation
The correct answer is C: The air register doors should be fully open for an individual burner that is lit and fully closed for an individual burner that is idle.
This is because the air register doors control the air supply to the individual burners. When a burner is lit, it requires a full air supply for proper combustion. However, for a burner that is idle, the air register doors should be fully closed to prevent unnecessary air flow and heat loss. This ensures efficient and safe operation of the boiler system.
The other options are incorrect because they do not properly match the air register door position to the operating status of the individual burners.
Related Questions
#24 Where do fuel oil vapors tend to accumulate in an engine room? #25 Prior to initial light-off of an idle boiler, what must first be done to prevent boiler flareback? #27 Which of the following labeled items of the illustrated air register and burner assembly represents the poke hole cover and would be temporarily removed to poke through a clinker? Illustration SG-0016 #28 What size drill is used to drill the orifice of the sprayer plate of the illustrated atomizer? Illustration SG-0022 #29 Which of the following labeled items of the illustrated section of boiler refractory represents the insulating brick? Illustration GS-0003