GATE CE concept:influence-lines PYQs & Answers

Questions 1–4 of 4. Imported answers require independent review unless marked reviewed.

A simply supported, linearly elastic, homogeneous, prismatic beam of length L and flexural rigidity EI is shown in the figure.

Diagram for Civil Engineering question 38

The expression for the Influence Line Diagram (ILD) of the rotation

at the support B is

Your answerChoose one option.

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Consider the pin-jointed truss shown in the figure. Influence line is drawn for the axial force in the member G-I, when a unit load travels on the bottom chord of the truss. Identify the CORRECT influence line from the following options:

Note: Positive value corresponds to tension and negative value corresponds to compression in the member.

Diagram for Civil Engineering question 14

Your answerChoose one option.

Diagram for Civil Engineering question 14 (figure 2)

Diagram for Civil Engineering question 14 (figure 3)

Diagram for Civil Engineering question 14 (figure 4)

Diagram for Civil Engineering question 14 (figure 5)

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Muller-Breslau principle is used in analysis of structures for _________________.

Your answerChoose one option.

drawing an influence line diagram for any force response in the structure

writing the virtual work expression to get the equilibrium equation

superposing the load effects to get the total force response in the structure

relating the deflection between two points in a member with the curvature diagram in-between

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A propped cantilever beam EF is subjected to a unit moving load as shown in the figure (not to scale). The sign convention for positive shear force at the left and right sides of any section is also shown.