A three-hinged parabolic arch ABC has a span of 20 in and a central ri – McqOptions

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1.	A three-hinged parabolic arch ABC has a span of 20 in and a central rise of 4.0 in. The arch has hinges at the ends and at the crown. A train of two point loads of 20 kN and 10 kN, 5 m apart, crosses this arch from left to right, with the 20 kN load leading. The maximum thrust induced at the supports is
A.	25.0 kN
B.	28.13 kN
C.	31.26 kN
D.	32.81 kN
Answer» D. 32.81 kN

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