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Civil Engineering
‣
Strength of Materials
Comments
Question
The ratio of the tensile stress developed in the wall of a boiler in the circumferential direction to the tensile stress in the axial direction, is
Options
A. 4
B. 3
C. 2
D. 1
Correct Answer
2
Strength of Materials problems
Search Results
1. The point of contraflexture occurs in
Options
A. cantilever beams only
B. continuous beams only
C. over hanging beams only
D. all types of beams
E. both (a) and (b).
Show Answer
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Correct Answer: over hanging beams only
2. A member which does not regain its original shape after removed of load producing deformation is said
Options
A. plastic
B. elastic
C. rigid
D. none of these.
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Correct Answer: plastic
3. When a rectangular beam is loaded longitudinally, shear develops on
Options
A. bottom fibre
B. top fibre
C. middle fibre
D. every-horizontal plane.
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Correct Answer: every-horizontal plane.
4. Rankine-Golden formula accounts for direct as well as buckling stress and is applicable to
Options
A. very long columns
B. long columns
C. short columns
D. intermediate columns
E. all the above.
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Correct Answer: intermediate columns
5. Along the principal plan subjected to maximum principal stress
Options
A. maximum shear stress acts
B. minimum shear stress acts
C. no shear stress acts
D. none of these.
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Correct Answer: no shear stress acts
6. At either end of a plane frame, maximum number of possible bending moments, are
Options
A. one
B. two
C. three
D. four
E. zero.
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Correct Answer: zero.
7. A steel rod of 2 cm diameter and 5 metres long is subjected to an axial pull of 3000 kg. If
E
= 2.1 x 10
6
, the elongation of the rod will be
Options
A. 2.275 mm
B. 0.2275 mm
C. 0.02275 mm
D. 2.02275 mm.
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Correct Answer: 0.2275 mm
8. For a given material, if
E
,
C
,
K
and
m
are Young's modulus, shearing modulus, bulk modulus and poisson ratio, the following relation does not hold good
Options
A.
B.
C.
D.
E.
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Correct Answer:
9. In a shaft rotated by a couple, the shear force varies
Options
A. from zero at the centre to a maximum at the circumference
B. from minimum at the centre of maximum at the circumference
C. from maximum at the centre to zero at the circumference
D. equally throughout the section
E. none of these.
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Correct Answer: from zero at the centre to a maximum at the circumference
10. The force in the member
DE
of the truss shown in below figure will be
Options
A. zero
B. 2
W
tensile
C. 2
W
compressive
D. 4
W
compressive
E. 4
W
tensile.
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Correct Answer: 2
W
compressive
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