Mechanical Engineering - Strength of Materials

31.
The torsional rigidity of a shaft is expressed by the torque required to produce a twist of one radian per unit length of a shaft.
True
False
Answer: Option
Explanation:
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32.
When a body is subjected to a direct tensile stress (σx) in one plane accompanied by a simple shear stress (τxy ), the minimum normal stress is
Answer: Option
Explanation:
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33.
The stress developed in the material without any permanent set is called
elastic limit
yield stress
ultimate stress
breaking stress
Answer: Option
Explanation:
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34.
For riveting, the size of hole drilled in plates is __________ shank diameter of rivet.
equal to
less than
greater than
Answer: Option
Explanation:
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35.
When a bar is subjected to a change of temperature and its deformation is prevented, the stress induced in the bar is
tensile stress
compressive stress
shear stress
thermal stress
Answer: Option
Explanation:
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