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- Question
While testing a cast iron beam (2.5 cm x 2.5 cm) in section and a metre long simply supported at the ends failed when a 100 kg weight is applied at the centre. The maximum stress induced is :
Options- A. 960 kg/cm2
- B. 980 kg/cm2
- C. 1000 kg/cm2
- D. 1200 kg/cm2.
- Correct Answer
- 960 kg/cm2
- 1. The maximum resistance against rotation, is offered by the weld at a point
Options- A. most distant
- B. least distant
- C. at either end
- D. centrally located. Discuss
- 2. The maximum bending moment due to a moving load on a simply supported beam, occurs
Options- A. at the mid span
- B. at the supports
- C. under the load
- D. anywhere on the beam
- E. none of these. Discuss
- 3. In a three hinged arch, the shear force is usually
Options- A. maximum at crown
- B. maximum at springings
- C. maximum at quarter points
- D. varies with slope. Discuss
- 4. In a three hinged arch, the third hinge is generally kept at
Options- A. crown of the arch
- B. midpoint of the crown and left support hinge
- C. midpoint of the crown and right support hinge
- D. none of these. Discuss
- 5. If a three hinged parabolic arch carries a uniformly distributed load on its entire span, every section of the arch resists.
Options- A. compressive force
- B. tensile force
- C. shear force
- D. bending moment. Discuss
- 6. An arch may be subjected to
Options- A. shear and axial force
- B. bending moment and shear force
- C. bending moment and axial force
- D. shear force and thrust
- E. thrust, shear force and bending moment. Discuss
- 7. The number of points of contraflexure in a simple supported beam carrying uniformly distributed load, is
Options- A. 1
- B. 2
- C. 3
- D. 0 Discuss
- 8. n and j are numbers of members and joints in a frame. It contains redundant members if
Options- A. n = 2j - 3
- B. n = 3j - 2
- C. n < 2j - 3
- D. n < j - 2
- E. n > 2j - 3 Discuss
- 9. The materials which have the same elastic properties in all directions, are called
Options- A. isotropic
- B. brittle
- C. homogeneous
- D. hard. Discuss
- 10. 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 Discuss
Strength of Materials problems
Search Results
Correct Answer: most distant
Correct Answer: under the load
Correct Answer: maximum at springings
Correct Answer: crown of the arch
Correct Answer: compressive force
Correct Answer: thrust, shear force and bending moment.
Correct Answer: 0
Correct Answer: n > 2j - 3
Correct Answer: isotropic
Correct Answer: d = 6.05 t
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