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

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_____.

The minimum horizontal distance between two parallel main reinforcing bars, is_____.
 A. The diameter of the bar if their diameters are same
 B. The diameter of the longer bar if their diameters are unequal
 C. 5 mm more than nominal maximum size of the coarse aggregate
 D. Greatest value of the above

The number of independent displacement components at each joint of a rigidjointed space frame is_____.
 A. 1
 B. 2
 C. 3
 D. 6

Which of the following is not the displacement method?
 A. Equilibrium method
 B. Column analogy method
 C. Moment distribution method
 D. Kani’s method

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

The degree of static indeterminacy of a pinjointed space frame is given by (where m is number of unknown member forces, r is unknown reaction components and j is number of joints)
 A. m + r – 2j
 B. m + r – 3j
 C. 3m + r – 3j
 D. m + r + 3j

The number of independent equations to be satisfied for static equilibrium of a plane structure is_____.
 A. 1
 B. 2
 C. 3
 D. 6

A simply supported beam deflects by 5 mm when it is subjected to a concentrated load of 10 kN at its centre. What will be deflection in a 1/10 model of the beam if the model is subjected to a 1 kN load at its centre ?
 A. 5 mm
 B. 0.5 mm
 C. 0.05 mm
 D. 0.005mm

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 span

Castigliano’s first theorem is applicable_____.
 A. for statically determinate structures only
 B. when the system behaves elastically
 C. only when principle of superposition is valid
 D. none of the above