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Question
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.
Options:
A .  800
B .  1600
C .  4000
D .  8500
Answer: Option B

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