The minimum cube strength of concrete used for a prestressed member, i – McqOptions

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1.	The minimum cube strength of concrete used for a prestressed member, is ________
A.	50 kg/cm<sup>2</sup>
B.	150 kg/cm<sup>2</sup>
C.	350 kg/cm<sup>2</sup>
D.	100 kg/cm<sup>2</sup>
Answer» D. 100 kg/cm<sup>2</sup>

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