For a single-point load W moving on symmetrical 3-hinged parabolic arch of span L, the maximum sagging moment occurs at a distance x from ends. The value of x is

For a single-point load W moving on symmetrical 3-hinged parabolic arc

1.	For a single-point load W moving on symmetrical 3-hinged parabolic arch of span L, the maximum sagging moment occurs at a distance x from ends. The value of x is
A.	0.211 L
B.	0.25 L
C.	0.234 L
D.	0.5 L
Answer» B. 0.25 L

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For a single-point load W moving on symmetrical 3-hinged parabolic arch of span L, the maximum sagging moment occurs at a distance x from ends. The value of x is

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