Strength Of Materials QUESTIONS AND ANSWERS

Civil Engineering : Strength Of Materials QUESTIONS AND ANSWERS :: part1 : 11 to 15

Following Civil Engineering Multiple choice objective type questions and answers will help you in BSNL JTO, GATE 2024 and IES 2024 examinations :

11.Two bars of different materials are of the same size and are subjected to same tensile forces. If the bars have unit elongations in the ratio of 4 : 7, then the ratio of moduli of elasticity of the two materials is

7:4

4:7

4:17

16 :49

12.If a point in a strained material is subjected to equal normal and tangential stresses, then the angle of obliquity is

0�

45�

tan"1 (1/2)

tan"1 (2)

13.Limiting values of Poisson's ratio are

- 1 and 0.5

-land-0.5

1 and - 0.5

0 and 0.5

14.A prismatic bar of volume V is subjected to a tensile force in longitudinal direction. If Poisson's ratio of the material is u and longitudinal strain is e, then the final volume of the bar becomes

(l + e)(l-u)2V

(l-e)2(l + ue)V

(l + e)(l-ne)2V

(l-ue)3V

15.At a point in a strained body carrying two unequal unlike principal stresses pi and p2 (Pi > P2X the maximum shear stress is given by

p,/2

p2/2

(p,-p2)/2

(p, + p2)/2

More Strength Of Materials QUESTIONS AND ANSWERS available in next pages