Question 31Steam Plants - QMED70% to pass
Which of the following labeled items of the illustrated air register and burner assembly represents the mechanism for operating the register air doors? Illustration SG-0016

AI Explanation
The correct answer is D) 12.
The mechanism for operating the register air doors is represented by item 12 in the illustrated air register and burner assembly (Illustration SG-0016). This is the air register damper, which controls the amount of air flowing through the register and into the space being heated.
The other answer choices are incorrect because they represent different components of the assembly, such as the air register (2), the primary air inlet (4), and the burner assembly (6), but do not specifically depict the mechanism for operating the air register doors.
Related Questions
#29 Which of the following labeled items of the illustrated section of boiler refractory represents the insulating brick? Illustration GS-0003 #30 Which of the following labeled items of the illustrated air register and burner assembly represents the means by which the flame may be visually checked for color and condition? Illustration SG-0016 #32 Which of the following labeled items of the illustrated section of boiler refractory represents the insulating block? Illustration GS-0003 #33 The cooling water flow from an air ejector inter condenser and after condenser is discharged directly into the _______________.#34 Which statement is true concerning two-stage air ejector assemblies?