1.

A rectangular concrete beam of cross section 100mm wide and 400mm deep is prestressed by a straight cable of span 6m, imposed load is 3.14kn/m, area is 36×103mm2(Z=18×105mm3). Calculate working moment assuming the self weight of concrete as 24kn/m3?

A. 10.25
B. 2.25
C. 3.25
D. 4.25
Answer» B. 2.25


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