Question 140Steam Plants - 1st Asst/Chief
70% to passA furnace wall in which there are open spaces around the brick as a result of firebrick shrinkage is _______________.
Aspalled and must be replaced
Bnormal and need only be cleaned
Cloose and should be repaired
Dcracked and must be patched
AI Explanation
The correct answer is C) loose and should be repaired. The open spaces around the bricks in the furnace wall are the result of firebrick shrinkage, which is a normal occurrence over time. This shrinkage causes the bricks to become loose, and they need to be repaired rather than replaced. Spalling, cracking, or the need for patching would indicate more severe damage that is not the case here. Repairing the loose bricks is the appropriate action to take, as it will restore the integrity of the furnace wall and ensure proper operation and safety.
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