Silica refractories – McqOptions

MCQOPTIONS

1.	Silica refractories
A.	crack when subjected to sudden change of temperature.
B.	can not be used in the dome of hot blast stoves.
C.	have lower thermal conductivity than fireclay bricks.
D.	all (a), (b) and (c)
Answer» B. can not be used in the dome of hot blast stoves.

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