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A simply supported beam of 8 m has two vertical point loads: 10 kN at 2 m from the left support, 10 kN at 6 m from the left support. Using the graphic
Question

A simply supported beam of 8 m has two vertical point loads: 10 kN at 2 m from the left support, 10 kN at 6 m from the left support. Using the graphical method, what is the approximate reaction at the left support ?

A.

12 kN

B.

8 kN

C.

15 kN

D.

10 kN

Correct option is D

The two 10 kN loads are placed symmetrically about the center of the 8 m beam (at 2 m and 6 m).

Because of this symmetry:

• Total load = 10 + 10 = 20 kN
• Reactions at both supports are equal

Reaction at left support = 20 / 2 = 10 kN

So, the approximate reaction at the left support is 10 kN ✔️

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