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

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. 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__________________?

   A. 0.211 L
   B. 0.25 L
   C. 0.234 L
   D. 0.5 L

3. The degree of static indeterminacy of a pin-jointed space frame is given by_________________?

   A. m + r – 2j
   B. m + r – 3j
   C. 3m + r – 3j
   D. m + r + 3j

   where m is number of unknown member forces, r is unknown reaction components and j is number of joints

4. The deflection at any point of a perfect frame can be obtained by applying a unit load at the joint in_________________?

   A. vertical direction
   B. horizontal direction
   C. inclined direction
   D. the direction in which the deflection is required

5. Select the correct statement?

   A. Flexibility matrix is a square symmetrical matrix
   B. Stiffness matrix is a square symmetrical matrix
   C. both A. and B.
   D. none of the above

6. Sinking of an intermediate support of a continuous beam________________?

   Consider the following statements

   1. reduces the negative moment at support
   2. increases the negative moment at support
   3. reduces the positive moment at support
   4. increases the positive moment at the centre of span

   A. i and 4 are correct
   B. 1 and 3 are correct
   C. 2 and 3 are correct
   D. 2 and 4 are correct

7. In the displacement method of structural analysis, the basic unknowns are__________________?

   A. displacements
   B. force
   C. displacements and forces
   D. none of the above

8. The degree of static indeterminacy up to which column analogy method can be used is__________________?

   A. 2
   B. 3
   C. 4
   D. unrestricted

9. The number of independent equations to be satisfied for static equilibrium in a space structure is___________________?

   A. 2
   B. 3
   C. 4
   D. 6

10. To generate the j the column of the flexibility matrix________________?

    A. a unit force is applied at coordinate j and the displacements are calculated at all coordinates
    B. a unit displacement is applied at co-ordinate j and the forces are calculated at all coordinates
    C. a unit force is applied at coordinate j and the forces are calculated at all coordinates
    D. a unit displacement is applied at co-ordinate j and the displacements are calculated at all co-ordinates