USCG USCG Steam
Set 5 • Question #352 of 496
Launch Interactive Practice Room As a general rule, for proper results castable fireclay must be air cured for __________.
A
12 hours
B
18 hours
C
24 hours
D
48 hours or longer
✓ Correct Answer
USCG NMC Regulatory Explanation
In USCG Steam Plants (Boilers & Turbines), regarding 'As a general rule, for proper results castable fireclay must be air cured for', the verified engineering fact is: '48 hours or longer'.
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