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Strength of Materials interview questions


Question 1:The object of caulking in a riveted joint is to make the joint

leak-proof

Question 2:Euler's formula holds good only for

long columns

Question 3:The neutral axis of the cross-section a beam is that axis at which the bending stress is

zero

Question 4: Strain energy is the

energy stored in a body when strained within elastic limits

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

no stress

Question 6: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

1400 MPa

Question 7:In order to prevent crushing of masonry at the base of the dam, the maximum stress should be __________ the permissible stress of the soil.

less than

Question 8:

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)

4t

Question 9: 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

1/2

Question 10:The deformation per unit length is called

strain

Question 11:Strain rosettes are used to

measure linear strain

Question 12:When a rectangular beam is loaded transversely, the maximum compressive stress is developed on the

bottom layer

Question 13: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

8/5

Question 14: The maximum stress produced in a bar of tapering section is at

smaller end

Question 15:The energy stored in a body when strained within elastic limit is known as

strain energy




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