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Home
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Mechanical Engineering
‣
Strength of Materials
Comments
Question
The strain energy stored in a solid circular shaft subjected to shear stress (?) is (where
C
= Modulus of rigidity for the shaft material)
Options
A.
x Volume of shaft
B.
x Volume of shaft
C.
x Volume of shaft
D.
x Volume of shaft
Correct Answer
x Volume of shaft
Strength of Materials problems
Search Results
1. A steel bar of 5 mm is heated from 15° C to 40° C and it is free to expand. The bar Will induce
Options
A. no stress
B. shear stress
C. tensile stress
D. compressive stress
Show Answer
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Discuss
Correct Answer: no stress
2. Strain resetters are used to
Options
A. measure shear strain
B. measure linear strain
C. measure volumetric strain
D. relieve strain
Show Answer
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Discuss
Correct Answer: measure linear strain
3. In order to prevent crushing of masonry at the base of the dam, the maximum stress should be __________ the permissible stress of the soil.
Options
A. equal to
B. less than
C. more than
Show Answer
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Correct Answer: less than
4. For a beam, as shown in the below figure, the maximum deflection is
.
Options
A. True
B. False
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Correct Answer: False
5. In the torsion equation
the term
J
/
R
is called
Options
A. shear modulus
B. section modulus
C. polar modulus
D. none of these
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Correct Answer: polar modulus
6. The deformation per unit length is called
Options
A. tensile stress
B. compressive stress
C. shear stress
D. strain
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Correct Answer: strain
7. A vertical column has two moments of inertia (i.e.
I
xx
and
I
yy
). The column will tend to buckle in the direction of the
Options
A. axis of load
B. perpendicular to the axis of load
C. maximum moment of inertia
D. minimum moment of inertia
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Correct Answer: minimum moment of inertia
8. A beam supported at its both ends is not a simply supported beam.
Options
A. True
B. False
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Correct Answer: False
9. A thin cylindrical shell of diameter (
d
) and thickness (
t
) is subjected to an internal pressure (
p
). The ratio of longitudinal strain to volumetric strain is
Options
A.
B.
C.
D.
Show Answer
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Correct Answer:
10. The stress induced in a body, when suddenly loaded, is __________ the stress induced when the same load is applied gradually.
Options
A. equal to
B. one-half
C. twice
D. four times
Show Answer
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Correct Answer: twice
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