Mechanical Engineering Strength of Materials Online Test

Strain energy is the

The neutral axis of the cross-section a beam is that axis at which the bending stress is

Euler’s formula holds good only for

The object of caulking in a riveted joint is to make the joint

A steel bar of 5 mm is heated from 15° C to 40° C and it is free to expand. The bar Will induce

A body is subjected to a tensile stress of 1200 MPa on one plane and another tensile stress of 600 MPa on a plane at right angles to the former. It is also subjected to a shear stress of 400 MPa on the same planes. The maximum normal stress will be

Two shafts ‘A’ and ‘B’ transmit the same power. The speed of shaft ‘A’ is 250 r.p.m. and that of shaft ‘B’ is 300 r.p.m. The shaft ‘B’ has the greater diameter.

The stress induced in a body, when suddenly loaded, is __________ the stress induced when the same load is applied gradually.

If the slenderness ratio for a column is 100, then it is said to be a __________ column.

A masonry dam may fail due to

In order to prevent crushing of masonry at the base of the dam, the maximum stress should be __________ the permissible stress of the soil.

When a body is subjected to two equal and opposite pushes, as a result of which the body tends to reduce its length, the stress and strain induced is compressive.

The bending moment at a point on a beam is the algebraic __________ of all the moments on either side of the point.

The maximum diameter of the hole that can be punched from a plate of maximum shear stress 1/4th of its maximum crushing stress of punch, is equal to (where t = Thickness of the plate)

Two closely coiled helical springs ‘A’ and ‘B’ are equal in all respects but the number of turns of spring ‘A’ is half that of spring ‘B’ The ratio of deflections in spring ‘A’ to spring ‘B’ is

The deformation per unit length is called

Strain resetters are used to

When a rectangular beam is loaded transversely, the maximum compressive stress is developed on the

The point of contraflexure is a point where

The simply supported beam ‘A’ of length l carries a central point load W. Another beam ‘B’ is loaded with a uniformly distributed load such that the total load on the beam is W. The ratio of maximum deflections between beams A and B is

The maximum stress produced in a bar of tapering section is at

The energy stored in a body when strained within elastic limit is known as

In compression test, the fracture in cast iron specimen would occur along

The bending stress in a beam is __________ section modulus.

When shear force at a point is zero, then bending moment is __________ at that point.

When a bar is cooled to – 5°C, it will develop

The limit of eccentricity is based upon no tension condition.

In order to know whether a column is long or short, we must know its slenderness ratio.

Resilience is the

A concentrated load is one which