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Theory of Structures

Theory of Structures
In case of a simply supported rectangular beam of span L and loaded with a central load W, the length of elasto-plastic zone of the plastic hinge, is

L/5
L/2
L/4
L/3

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Theory of Structures
The ratio of circumferential stress to the longitudinal stress in the walls of a cylindrical shell, due to flowing liquid, is

1½
½
2
1

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Theory of Structures
The ratio of shear stress and shear strain of an elastic material, is

Modulus of Rigidity
Both A. and B.
Shear Modulus
Modulus of Elasticity

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Theory of Structures
A truss containing j joints and m members, will be a simple truss if

j = 2m – 3
m = 3j – 2
m = 2j – 3
j = 3m – 2

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Theory of Structures
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:

5.5 mm
4.5 mm
4.0 mm
5.0 mm

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Theory of Structures
Stress may be expressed in Newtons

Per millimetre square (N/mm²)
None of these
Per centimetre square (N/cm²)
Per metre square (N/m2)

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