1000+ Strength of Materials Multiple Choice Questions and Answers - 2

Question: 6

Which one of the following is not the assumption in deriving Euler's theory for long columns?

(A) the columns are having hinged ends only

(B) the column fails by buckling alone

(C) the column is initially straight and is loaded axially

(D) the section of the column is uniform throughout

Question: 7

In a tension test on a bar, gauge length means

(A) the length over which extension is measured

(B) the length over which extensometer grips

(C) grip to grip distance

(D) none of the above

Question: 8

A leaf spring is a practical example of a beam of uniform strength since

(A) it deflects uniformly

(B) it absorbs shocks on the body uniformly

(C) section modulus is varied in steps depending upon the moment

(D) it consists of a number of leaves of same cross section

Question: 9

The property of a material by which it can be drawn to a smaller section, due to tension is called

(A) elasticity

(B) malleability

(C) plasticity

(D) ductility

Question: 10

In a bar of large length when held vertically and subjected to a load at its lower end, its own weigh produces additional stress. The maximum stress will be

(A) at every point of the bar

(B) at the central cross section

(C) at the built in upper cross section

(D) at the lower cross section