Test: Arches -1 - Civil Engineering (CE) MCQ

A symmetrical two-hinged parabolic arch rib has a span of 32 m between abutment pins at the same level and a central rise of 5 m. When a rolling load of 100 kN crosses the span, the maximum horizontal thrust at the hinges will be

A uniformly distributed load of 2 kN/m covers left half of the span of a three-hinged parabolic arch, span 40 m and central rise 10 m. Which of the following statements relating to different functions at the loaded quarter point are correct?
1. The slope is tan^-1 (1/2)
2. The normal thrust is 6√5 kN.
3. The shear force is not zero
4. The bending moment is zero.

Select the correct answer using the codes' given below:

A three hinged arch is shown in the below figure. The influence line for the horizontal thrust is

For the two-hinged parabolic arch as shown in the below figure, which one of the following diagrams represents the shape of the bending moment variation.

A circular three-pinned arch of span 40 m and a rise of 8 m is hinged at the crown and springings. it carries a horizontal load of 100 kN per vertical metre on the left side. The horizontal thrust at the right springing will be

A symmetrical three-hinged parabolic arch of span L and rise h is hinged at springing and crown. It is subjected to a UDLw throughout the span. What is the bending moment at a section L/4 from the left support?

A three-hinged circular arch ACB is formed by two quadrants of circles AC and BC of radii 2R and R respectively with C as crown, as shown in the figure. Consider the following in respect of the reactive forces developed at supports A and B due to concentrated load at the crown:

1. Line of action of reaction R_A at B is inclined at 45° to the horizontal.
2. H_B = H_A = W/3
3. V_B = 2V_A
4. V_A = V_B + W/3

Which of the above is/are correct?