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‣
Mechanical Engineering
‣
Strength of Materials
Comments
Question
Hook's law holds good up to
Options
A. yield point
B. elastic limit
C. plastic limit
D. breaking point
Correct Answer
elastic limit
Strength of Materials problems
Search Results
1. The strain energy stored in a body due to shear stress, is (where ? = Shear stress,
C
= Shear modulus, and
V
= Volume of the body)
Options
A.
B.
C.
D.
Show Answer
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Discuss
Correct Answer:
2. The thickness of a thin cylindrical shell with hemispherical ends is __________ that of spherical ends.
Options
A. equal to
B. more than
C. less than
Show Answer
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Discuss
Correct Answer: more than
3. The tensile strength of ductile materials is __________ its compressive strength.
Options
A. equal to
B. less than
C. greater than
Show Answer
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Discuss
Correct Answer: greater than
4. The assumption made in the theory of the reinforced cement concrete beam is that
Options
A. all the tensile stresses are taken up by the steel reinforcement only
B. there is a sufficient bond between steel and concrete
C. the steel and concrete are stressed within its elastic limit
D. all of the above
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Correct Answer: all of the above
5. The direct stress induced in a long column is __________ as compared to bending stress.
Options
A. same
B. more
C. less
D. negligible
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Correct Answer: negligible
6. The unit of stress in S.I. units is
Options
A. N/mm
2
B. kN/mm
2
C. N/m
2
D. any one of these
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Correct Answer: any one of these
7. When there is a sudden increase or decrease in shear force diagram between any two points, it indicates that there is a
Options
A. point load at the two points
B. no loading between the two points
C. uniformly distributed load between the two points
D. uniformly varying load between the two points
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Correct Answer: point load at the two points
8. The extension of a circular bar tapering uniformly from diameter
d
1
at one end to diameter
d
2
at the other end, and subjected to an axial pull of
P
is __________ the extension of a circular bar of diameter
d
1
d
2
subjected to the same load
P
.
Options
A. equal to
B. less than
C. greater than
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Correct Answer: equal to
9. In a leaf spring, the length of all the leaves are equal.
Options
A. True
B. False
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Correct Answer: False
10. The ratio of the lateral strain to the linear strain is called
Options
A. modulus of elasticity
B. modulus of rigidity
C. bulk modulus
D. Poisson's ratio
Show Answer
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Discuss
Correct Answer: Poisson's ratio
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