At the neutral axis of a beam the layers are subjected to maximum bending stress

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Question
At the neutral axis of a beam
Options
A. the layers are subjected to maximum bending stress
B. the layers are subjected to minimum bending stress
C. the layers are subjected to compression
D. the layers do not undergo any strain

Correct Answer

the layers do not undergo any strain

Strength of Materials problems

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1. Two shafts 'A' and 'B' have the same material. The shaft 'A' is solid of diameter 100 mm. The shaft 'B' is hollow with outer diameter 100 mm and inner diameter 50 mm. The torque transmitted by shaft 'B' is __________ as that of shaft 'A'.
Options
A. 1/6
B. 1/8
C. 1/4
D. 15/16

4. In a beam subjected to pure bending, the intensity of stress in any fibre is __________ the distance of the fibre from the neutral axis.
Options
A. equal to
B. less than
C. more than
D. directly proportional to

7. The bending moment diagram for a simply supported beam carrying a uniformly distributed load of w per unit length, will be
Options
A. a horizontal line
B. a vertical line
C. an inclined line
D. a parabolic curve

8. Which of the following statement is wrong?
Options
A. The deformation of the bar per unit length in the direction of the force is called linear strain.
B. The Poisson's ratio is the ratio of lateral strain to the linear strain.
C. The ratio of change in volume to the original volume is called volumetric strain.
D. The bulk modulus is the ratio of linear stress to the linear strain.

10. A column is said to be a short column, when
Options
A. its length is very small
B. its cross-sectional area is small
C. the ratio of its length to the least radhis of gyration is less than 80.
D. the ratio of its length to the least radius of gyration is more than 80.

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