A pigment shall be used in the curing compound in order to:
A.
prevent ultraviolet light damage.
B.
help the lining retain moisture.
C.
help the lining retain heat.
D.
indicate full coverage.
The Answer Is:
D
This question includes an explanation.
Explanation:
Pigment in curing compounds serves a visual function to verify that the applied coating has achieved full and even coverage across the refractory surface. This aids inspectors in confirming compliance with curing requirements.
[Reference:API Std 936, Section 6.3.2 – Curing Requirements: "A pigment shall be included in the curing compound to provide visual confirmation of coverage during application.", ]
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