Strength of Materials problems
- 1. 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. Discuss
Correct Answer: (b/d)2
- 2. 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. Discuss
Correct Answer: zero
- 3. 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. Discuss
Correct Answer: no shear stress acts
- 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. Discuss
Correct Answer: intermediate columns
- 5. When a rectangular beam is loaded longitudinally, shear develops on
Options- A. bottom fibre
- B. top fibre
- C. middle fibre
- D. every-horizontal plane. Discuss
Correct Answer: every-horizontal plane.
- 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. 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). 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 Discuss
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. 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 106, the elongation of the rod will be
Options- A. 2.275 mm
- B. 0.2275 mm
- C. 0.02275 mm
- D. 2.02275 mm. Discuss
Correct Answer: 0.2275 mm
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