The layer at the centre of gravity of the beam as shown in the below figure, wil

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Question
The layer at the centre of gravity of the beam as shown in the below figure, will be
Options
A. in tension
B. in compression
C. neither in tension nor in compression

Correct Answer

neither in tension nor in compression

Strength of Materials problems

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1. 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

2. 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. 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

7. 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�

8. 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

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