The four most important materials that go to make Portland cement are – McqOptions

MCQOPTIONS

1.	The four most important materials that go to make Portland cement are
A.	Lime, Silica, Alumina and Iron Oxide
B.	Silica, Lime, Magnesia and Soda
C.	Lime, Silica, Alumina and Sulphur
D.	Silica, Lime, Phosphorus and Sulphur
Answer» B. Silica, Lime, Magnesia and Soda

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