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‣
Strength of Materials
Comments
Question
For a channel section, the shear centre lies at a distance of
Options
A.
B.
C.
D.
Correct Answer
Strength of Materials problems
Search Results
1. The B.M. of a cantilever beam shown in below figure at
A
, is
Options
A. zero
B. 8 Tm
C. 12 Tm
D. 20 Tm.
Show Answer
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Discuss
Correct Answer: zero
2. For structural analysis, Maxwell's reciprocal theorem can be applied to :
Options
A. plastic structures
B. elastic structures
C. symmetrical structures
D. all the above.
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Discuss
Correct Answer: elastic structures
3. According to Unwin's formula, the diameter
d
of a rivet of plate of thickness
t
is :
Options
A.
d
= 6.05
t
B.
d
= 1.5
t
+ 4
C.
d
=
5
t
D.
d
=
t
+ 1.5
Show Answer
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Discuss
Correct Answer:
d
= 6.05
t
4. The materials which have the same elastic properties in all directions, are called
Options
A. isotropic
B. brittle
C. homogeneous
D. hard.
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Correct Answer: isotropic
5.
n
and
j
are numbers of members and joints in a frame. It contains redundant members if
Options
A.
n
= 2
j
- 3
B.
n
= 3
j
- 2
C.
n
< 2
j
- 3
D.
n
<
j
- 2
E.
n
> 2
j
- 3
Show Answer
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Correct Answer:
n
> 2
j
- 3
6. Pick up the correct statement from the following :
Options
A. A ductile material has large plastic zone
B. A brittle material has no plastic zone
C. A rigid material has no plastic zone
D. All the above.
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Correct Answer: All the above.
7. Pick up the correct statement from the following :
Options
A. The point through which the resultant of the shear stresses, passes is known as shear centre
B. In the standard rolled channels, the shear centre is on the horizontal line passing through and away from the C.G. beyond web
C. In equal angles, the shear centre is on the horizontal plane and away from the C.G., outside of the leg projection
D. In T-sections, the shear centre is at the C.G. of the section
E. All the above.
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Correct Answer: All the above.
8. During a tensile test on a ductile material
Options
A. nominal stress at fracture is higher than the ultimate stress
B. true stress at fracture is higher than the ultimate stress
C. true stress at fracture is the same as the ultimate stress
D. none of these.
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Correct Answer: true stress at fracture is higher than the ultimate stress
9. If the stress in each cross-section of a pillar is equal to its working stress, it is called
Options
A. body of equal
B. body of equal section
C. body of equal strength
D. none of these.
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Correct Answer: body of equal strength
10. The shape of the bending moment diagram over the length of a beam, carrying a uniformly increasing load, is always
Options
A. linear
B. parabolic
C. cubical
D. circular.
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Correct Answer: cubical
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