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Mechanical Engineering - Strength of Materials

Exercise : Strength of Materials - Section 7
21.
The strain energy stored in a hollow circular shaft of outer diameter (D) and inner diameter (d) subjected to shear stress is
x Volume of shaft
x Volume of shaft
x Volume of shaft
x Volume of shaft
Answer: Option
Explanation:
No answer description is available. Let's discuss.
22.
Fatigue test is carried out for
stresses varying between two limits of equal value, but of opposite sign
stresses varying between two limits of unequal value, but of opposite sign
stresses varying between two limits of unequal value but of same sign
all of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
23.
The section modulus (Z) of a beam is given by
I/y
I.y
y/I
M/I
Answer: Option
Explanation:
No answer description is available. Let's discuss.
24.
Every direct stress is always accompanied by a strain in its own direction and an opposite kind of strain in every direction, at right angles to it. Such a strain is known as
linear strain
lateral strain
volumetric strain
shear strain
Answer: Option
Explanation:
No answer description is available. Let's discuss.
25.
The shear force of a cantilever beam of length l and carrying a gradually varying load from zero at the free end and w per unit length at the fixed end is __________ at the fixed end.
zero
wl/4
wl/2
wl
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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