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Civil Engineering
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Strength of Materials
Comments
Question
When a rectangular beam is loaded longitudinally, shear develops on
Options
A. bottom fibre
B. top fibre
C. middle fibre
D. every-horizontal plane.
Correct Answer
every-horizontal plane.
Strength of Materials problems
Search Results
1. 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.
Show Answer
Scratch Pad
Discuss
Correct Answer: intermediate columns
2. 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.
Show Answer
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Discuss
Correct Answer: no shear stress acts
3. The bending moment at
E
for the structure shown in below figure, is
Options
A. zero
B. 10 Tm
C. 20 Tm
D. 40 Tm.
Show Answer
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Discuss
Correct Answer: zero
4. If the width
b
and depth
d
of a beam simply supported with a central load are interchanged, the deflection at the centre of the beam will be changed in the ratio of
Options
A.
b
/
d
B.
d
/
b
C. (
d
/
b
)
2
D. (
b
/
d
)
2
E. (
b
/
d
)
3
.
Show Answer
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Discuss
Correct Answer: (
b
/
d
)
2
5. Strain energy of a member may be equated to
Options
A. average resistance x displacement
B.
stress x strain x area of its cross-section
C.
stress x strain x volume of the member
D.
(stress)
2
x volume of the member + Young's modulus
E
.
Show Answer
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Discuss
Correct Answer:
(stress)
2
x volume of the member + Young's modulus
E
.
6. 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.
Show Answer
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Discuss
Correct Answer: plastic
7. 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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Discuss
Correct Answer: over hanging beams only
8. 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
Show Answer
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Correct Answer: 2
9. 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.
Show Answer
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Discuss
Correct Answer: zero.
10. 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.
Show Answer
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Discuss
Correct Answer: 0.2275 mm
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