Strength-of-materials Questions Set 22:
Which of the following materials exhibits a negative Poisson's ratio?
Solution:
Which point on the stress-strain curve occurs after the ultimate point?
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If the cross-sectional area of the bar is 12 mm^2, the weight density is 80 N/mm^3, and the length is 10 mm, find the weight of the bar.
Solution:
Calculate the factored bending moment of a rectangular reinforced concrete beam with an effective span of 4300 mm and a load of 37.5 kN/m.
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If the forces P, P, and P of a system are such that the force polygon does not close, then the system will:
Solution:
When a beam is subjected to simple bending, which mechanical property of the material is the same in both tension and compression?
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For a two-dimensional fluid element rotating like a rigid body, the pressure at a point within the element is 1 unit. The radius of the Mohr's Circle characterizing the state at that point is ____ MPa.
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What is the correct relationship between A, B, and tensile strength (T) of a material?
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Calculate the maximum bending stress acting on a simply supported beam of rectangular cross-section with a width of 20 mm and depth of 50 mm, and a length of 4 meters, if a uniformly distributed load of 22 kN/m acts on it.
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There are 3 types of creep:
1. Primary 2. Secondary 3. Tertiary
Match the following types with the descriptions given below:
a. Provides a nearly constant creep rate
b. Period of transient creep
c. Intergranular cracking and formation of voids occur
Solution:
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