In a two-hinged parabolic arch (consider arch to be initially unloaded – McqOptions

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1.	In a two-hinged parabolic arch (consider arch to be initially unloaded) an increase in temperature induces -
A.	no bending moment in the arch rib.
B.	uniform bending moment in the arch rib.
C.	maximum bending moment at the crown.
D.	minimum bending moment at the crown.
Answer» D. minimum bending moment at the crown.

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