Strength of Materials problems
- 1. The length of a column, having a uniform circular cross-section of 7.5 cm diameter and whose ends are hinged, is 5 m. If the value of E for the material is 2100 tonnes/cm2, the permissible maximum crippling load will be
Options- A. 1.288 tonnes
- B. 12.88
- C. 128.8 tonnes
- D. 288.0
- E. none of these. Discuss
Correct Answer: 12.88
- 2. A bending moment may be defined as :
Options- A. Arithmetic sum of the moments of all the forces on either side of the section
- B. Arithmetic sum of the forces on either side of the section
- C. Algebraic sum of the moments of all the forces on either side of the section
- D. None of these. Discuss
Correct Answer: Algebraic sum of the moments of all the forces on either side of the section
- 3. The type of butt joints in common use, is :
Options- A. single inverted V-butt joint
- B. double V-butt joint
- C. double U-butt joint
- D. single V-butt joint. Discuss
Correct Answer: single inverted V-butt joint
- 4. The structure shown in below figure is stable, if
Options- A.
- B. x = 2y
- C. x = y
- D. 2x = y. Discuss
Correct Answer: 2x = y.
- 5. An arch with three hinges, is a structure
Options- A. statically determinate
- B. statically indeterminate
- C. geometrically unstable
- D. structurally sound but indeterminate
- E. none of these. Discuss
Correct Answer: statically determinate
- 6. 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
Correct Answer: compressive force
- 7. 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
Correct Answer: crown of the arch
- 8. 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
Correct Answer: maximum at springings
- 9. 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
Correct Answer: under the load
- 10. 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
Correct Answer: most distant
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