A body is subjected to a direct tensile stress (?) in one plane. The shear stres

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Question
A body is subjected to a direct tensile stress (?) in one plane. The shear stress is maximum at a section inclined at __________ to the normal of the section.
Options
A. 45� and 90�
B. 45� and 135�
C. 60� and 150�
D. 30� and 135�

Correct Answer

45� and 135�

Strength of Materials problems

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1. A simply supported beam 'A' of length l, breadth b and depth d carries a central point load W. Another bream 'B' has the same length and breadth but its depth is doubled. The deflection of beam 'B' will be double as compared to beam 'A'.
Options
A. Correct
B. Incorrect

3. Whenever some external system of forces acts on a body, it undergoes some deformation. As the body undergoes some deformation, it sets up some resistance to the deformation. This resistance per unit area to deformation, is called
Options
A. strain
B. stress
C. pressure
D. modulus of elasticity

4. When a bar is subjected to a change of temperature and its deformation is prevented, the stress induced in the bar is
Options
A. tensile stress
B. compressive stress
C. shear stress
D. thermal stress

6. The strain energy stored in a hollow circular shaft of outer diameter (D) and inner diameter (d) subjected to shear stress is
Options
A. x Volume of shaft
B. x Volume of shaft
C. x Volume of shaft
D. x Volume of shaft

10. Two solid shafts 'A' and 'B' are made of the same material. The shaft 'A' is of 50 mm diameter and shaft 'B' is of 100 mm diameter. The strength of shaft 'B' is __________ as that of shaft A.
Options
A. one-half
B. double
C. four times
D. eight times

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