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

Related Mcqs:

1. For a symmetrical two hinged parabolic arch, if one of the supports settles horizontally, then the horizontal thrust__________________?

   A. is increased
   B. is decreased
   C. remains unchanged
   D. becomes zero

2. When a uniformly distributed load, longer than the span of the girder, moves from left to right, then the maximum bending moment at mid section of span occurs when the uniformly distributed load occupies_______________?

   A. less than the left half span
   B. whole of left half span
   C. more than the left half span
   D. whole span

3. A load ‘W is moving from left to right support on a simply supported beam of span T. The maximum bending moment at 0.4 1 from the left support is___________________?

   A. 0.16 Wl
   B. 0.20 Wl
   C. 0.24 Wl
   D. 0.25 Wl

4. A single rolling load of 8 kN rolls along a girder of 15 m span. The absolute maximum bending moment will be________________?

   A. 8 kN.m
   B. 15 kN.m
   C. 30 kN.m
   D. 60 kN.m

5. When a uniformly distributed load, shorter than the span of the girder, moves from left to right, then the conditions for maximum bending moment at a section is that___________________?

   A. the head of the load reaches the section
   B. the tail of the load reaches the section
   C. the load position should be such that the section divides it equally on both sides
   D. the load position should be such that the section divides the load in the same ratio as it divides the

6. For a two-hinged arch, if one of the supports settles down vertically, then the horizontal thrust______________?

   A. is increased
   B. is decreased
   C. remains unchanged
   D. becomes zero

7. When a series of wheel loads crosses a simply supported girder, the maximum bending moment under any given wheel load occurs when________________?

   A. the centre of gravity of the load system is midway between the centre of span and wheel load under consi-deration
   B. the centre of span is midway between the centre of gravity of the load system and the wheel load under consideration
   C. the wheel load under consideration is midway between the centre of span and the centre of gravity of the load system
   D. none of the above

8. When a load crosses a through type Pratt truss in the direction left to right, the nature of force in any diagonal member in the left half of the span would_______________?

   A. change from compression to tension
   B. change from tension to compression
   C. always be compression
   D. always be tension

9. While using three moments equation, a fixed end of a continuous beam is replaced by an additional span of__________________?

   A. zero length
   B. infinite length
   C. zero moment of inertia
   D. none of the above

10. The maximum bending moment due to a train of wheel loads on a simply supported girder_________________?

    A. always occurs at centre of span
    B. always occurs under a wheel load
    C. never occurs under a wheel load
    D. none of the above