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The compressive strength of cement should not be less than about 110Kg/cm2 after three days & not less than 170Kg/cm2 after seven days. The fineness of an ordinary cement as determined by turbidimetric method should be about __________ cm2/gm. | |
A. | 800 [Wrong Answer] |
B. | 1600 [Correct Answer] |
C. | 4000 [Wrong Answer] |
D. | 8500 [Wrong Answer] |