Mechanical Engineering - Strength of Materials

6.
When a body is subjected to a direct tensile stress (σx) in one plane accompanied by a simple shear stress (τxy ), the maximum normal stress is
Answer: Option
Explanation:
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7.
The strain energy stored in a body, when suddenly loaded, is __________ the strain energy stored when same load is applied gradually.
equal to
one-half
twice
four times
Answer: Option
Explanation:
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8.
The shear force at the centre of a simply supported beam with a gradually varying load from zero at both ends to w per metre at the centre, is
zero
wl/4
wl/2
wl2/2
Answer: Option
Explanation:
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9.
The proof resilience per unit volume of a material is known as modulus of resilience.
True
False
Answer: Option
Explanation:
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10.
According to Unwin's formula, the relation between diameter of rivet hole (d) and thickness of plate (t) is given by (where d and t are in mm)
d = t
d = 1.6 t
d = 2t
d = 6 t
Answer: Option
Explanation:
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