_ The minimum cube strength of concrete used for a pre-stressed member – McqOptions

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1.	_ The minimum cube strength of concrete used for a pre-stressed member, is$?
A.	50 kg/cm¬¨‚â§
B.	150 kg/cm¬¨‚â§
C.	250 kg/cm¬¨‚â§
D.	350 kg/cm¬¨‚â§
Answer» E.

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