The grade of concrete for prestressed members should be in the range o – McqOptions

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1.	The grade of concrete for prestressed members should be in the range of
A.	m-20 to m-30
B.	m-80 to m-100
C.	m-30 to m-60
D.	m-60 to m-80
Answer» D. m-60 to m-80

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