A rectangular concrete beam of width 120 mm and depth 200 mm is pre-stressed by pre-tensioning to a force of 150 kN at an eccentricity of 20 mm. The cross sectional area of the prestressing steel is 187.5 mm

A rectangular concrete beam of width 120 mm and depth 200 mm is pre-st

1.	A rectangular concrete beam of width 120 mm and depth 200 mm is pre-stressed by pre-tensioning to a force of 150 kN at an eccentricity of 20 mm. The cross sectional area of the prestressing steel is 187.5 mm
A.	8.75
B.	6.125
C.	4.81
D.	2.19
Answer» C. 4.81

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A rectangular concrete beam of width 120 mm and depth 200 mm is pre-stressed by pre-tensioning to a force of 150 kN at an eccentricity of 20 mm. The cross sectional area of the prestressing steel is 187.5 mm

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