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Question 1 of 5

A semi-circular two hinged arch is proposed in a forest area for providing crossing (of river) facility for animals. And it is subjected to a maximum temperature change of 35^\circ \mathrm{C} . Take flexural Rigidity of arch material as 25000units. Coefficient of thermal expansion is 12 \times 10^{-6} /^\circ \mathrm{C} . Due to change of plans it is converted to a parabolic shape with same overall geometry. For the same temperature change, what will be the percentage change in Horizontal thrust due to change of plans?

A

32.09% Increase

B

45.65% Decrease

C

47.26% Increase

D

39.68% Decrease

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