# Civil Engineering Objective Questions { Theory Of Structures }

15.  The ratio of shear stress and shear strain of an elastic material, is

16. A load of 1960 N is raised at the end of a steel wire. The minimum diameter of the wire so that stress in the wire does not exceed 100 N/mm2 is

17. The normal component of a force inclined through 0? is obtained by multiplying the force by

18. The tangential component of stress on an plane inclined 0? to the direction of the force, may be obtained by multiplying the normal stress by

19. he ratio of tangential and normal components of a stress on an inclined plane through 0? to the direction of the force, is

20. The normal and tangential components of stress on an inclined plane through 0? to the direction of the force, will be equal if 0 is

21.  If the normal stresses due to longitudinal and transverse loads on a bar are csi and a2 respectively, the tangential component of the stress on an inclined plane through 0?, the longitudinal load is

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