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Strength of Materials
Comments
Question
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.
Correct Answer
true stress at fracture is higher than the ultimate stress
Strength of Materials problems
Search Results
1. 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.
Show Answer
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Correct Answer: All the above.
2. 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.
Show Answer
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Correct Answer: All the above.
3. For a channel section, the shear centre lies at a distance of
Options
A.
B.
C.
D.
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Correct Answer:
4. 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.
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Correct Answer: zero
5. 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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Correct Answer: elastic structures
6. 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
7. 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
8. A diagram which shows the variations of the axial load for all sections of the span of a beam, is called
Options
A. bending moment diagram
B. shear force diagram
C. thrust diagram
D. stress diagram
E. none of these.
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Correct Answer: thrust diagram
9. The stress in the wall of a cylinder in a direction normal to its longitudinal axis, due to a force acting along the circumference, is known as
Options
A. yield stress
B. longitudinal stress
C. hoop stress
D. circumferential stress
E. ultimate stress.
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Correct Answer: hoop stress
10. A simply supported beam carries two equal concentrated loads
W
at distances
L
/3 from either support. The maximum bending moment
Options
A.
B.
C.
D.
E.
Show Answer
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Correct Answer:
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