Question 32Steam Plants - QMED
70% to passWhich of the following labeled items of the illustrated section of boiler refractory represents the insulating block? Illustration GS-0003
A1
B3
C4
D7
AI Explanation
The correct answer is D) 7. The insulating block in the illustrated section of boiler refractory (GS-0003) is represented by item 7. This insulating block is a crucial component that helps maintain the thermal efficiency of the boiler by reducing heat loss through the refractory walls. The other options are incorrect because: A) 1 represents the boiler shell, B) 3 represents the refractory material, and C) 4 represents the seal or gasket between the boiler shell and the refractory.
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