Exam 1: Mechanical Properties and Deformation of Materials

3.5 m long bar is under tensile load and due to that increase in length of bar is 1.75 mm then strain =

Euler's formula states that the buckling load P for a column of length l, both ends hinged and whose least moment of inertia and modulus of elasticity of the material of the column are I and E respectively, is given by the relation

The ratio of the effective length of a column and minimum radius of gyration of its cross-sectional area, is known

Modulus of rigidity is defined as the ratio of

A long vertical member, subjected to an axial compressive load, is called

It equal and opposite forces applied to a body tend to elongate it, the stress so produced is called

If the radius of wire stretched by a load is doubled, then its Young's modulus will be

Which of the following has no unit

The intensity of stress which causes unit strain is called

Shear stress causes .

In composite section deformation is same in both materials.

which of the following has same unit?

The increase in the length of a bar of length 1 m, area 300 mm², modulus of elasticity 2×10⁵ N/mm² due to a tensile load of 120 KN is .

Maximum deflection of a cantilever due to pure bending moment M at its free end, is

The unit of Young's modulus is

Deformation per unit length in the direction of force is known as

What is modular ratio?

Young's modulus is defined as the ratio of

Hooke's law holds good up to

The materials having same elastic properties in all directions are called