# Civil Engineering - Theory of Structures

### Exercise :: Theory of Structures - Section 1

16.

A load of 1960 N is raised at the end of a steel wire. The minimum diameter of the wire so that stress in the wire does not exceed 100 N/mm2 is :

 A. 4.0 mm B. 4.5 mm C. 5.0 mm D. 5.5 mm E. 6.0 mm

Explanation:

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17.

The force in BF of the truss shown in given figure, is A. 4t tension B. 4t compression C. 4.5t tension D. 4.5t compression E. zero.

Explanation:

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18.

The radius of gyration of a section of area A and least moment of inertia I about the centroidal axis, is

 A. B. C. D. Explanation:

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19.

A simply supported beam carries varying load from zero at one end and w at the other end. If the length of the beam is a, the maximum bending moment will be

 A. B. C. D. Explanation:

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20.

In plastic analysis, the shape factor for rectangular section, is

 A. 1.4 B. 1.5 C. 1.6 D. 1.7