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If the ratio of effective span to overall depth of a simply supported beam is equal or greater than 1 but less than or equal to 2, the lever arm, is

0.2 (l + 2D)
0.3 (l + 3D)
0.2 (l + 3D)
0.3 (l + 2D)

Correct Answer: 0.2 (l + 2D)

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