# Civil Engineering - Strength of Materials

### Exercise :: Strength of Materials - Section 4

46.

As the elastic limit reaches, tensile strain

 A. increases more rapidly B. decreases more rapidly C. increases in proportion to the stress D. decreases in proportion to the stress.

Explanation:

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47.

The ratio of the flexural strengths of two square beams one placed with its two sides horizontal and the other placed with one diagonal vertical, diagonal, is

 A. 2 B. 2 C. 5 D. 7

Explanation:

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48.

Simple bending equation is

 A. B. C. D. E. none of these.

Explanation:

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49.

Every material obeys the Hooke's law within its

 A. elastic limit B. plastic point C. limit of proportionality D. none of these.

Explanation:

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50.

The maximum compressive stress at the top of a beam is 1600 kg/cm2 and the corresponding tensile stress at its bottom is 400 kg/cm2 . If the depth of the beam is 10 cm, the neutral axis from the top, is

 A. 2 cm B. 4 cm C. 6 cm D. 8 cm E. 10 cm.