Refractoriness under load (RUL) of fireclay bricks (under a load of 2 – McqOptions

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1.	Refractoriness under load (RUL) of fireclay bricks (under a load of 2 kg/cm² ) is __________ C.
A.	500
B.	1000
C.	>1350
D.	>2000
Answer» D. >2000

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