Strength of Materials problems
- 1. Mohr's circle is used to determine the stresses on an oblique section of a body subjected to
Options- A. direct tensile stress in one plane accompanied by a shear stress
- B. direct tensile stress in two mutually perpendicular directions
- C. direct tensile stress in two mutually perpendicular directions accompanied by a simple shear stress
- D. all of the above Discuss
Correct Answer: all of the above
- 2. The neutral axis of the symmetrical beam does not pass through the centroid of the beam.
Options- A. Agree
- B. Disagree Discuss
Correct Answer: Disagree
- 3. The shear force in the centre of a simply supported beam carrying a uniformly distributed load of w per unit length, is
Options- A. zero
- B. wl2/2
- C. wl2/4
- D. wl2/8 Discuss
Correct Answer: zero
- 4. When a beam is subjected to bending moment, the stress at any point is __________ the distance of the point from the neutral axis.
Options- A. equal to
- B. directly proportional to
- C. inversely proportional to
- D. independent of Discuss
Correct Answer: directly proportional to
- 5. When a change in length takes place, the strain is known as
Options- A. linear strain
- B. lateral strain
- C. volumetric strain
- D. shear strain Discuss
Correct Answer: linear strain
- 6. The strength of a riveted joint is equal to the
Options- A. pull required to tear off the plate per pitch length (Pt)
- B. pull required to shear off the rivet per pitch length (Ps)
- C. pull required to crush the rivet per pitch length (Pc)
- D. minimum value of Pt, Ps or Pc Discuss
Correct Answer: minimum value of Pt, Ps or Pc
- 7. The maximum shear stress developed in a beam of rectangular section is __________ the average shear stress.
Options- A. equal to
- B. 4/3 times
- C. 1.5 times
- D. twice Discuss
Correct Answer: 1.5 times
- 8. The maximum bending moment of a simply supported beam with central point load lies at the point of loading.
Options- A. True
- B. False Discuss
Correct Answer: True
- 9. The bending moment at a section tends to bend or deflect the beam and the internal stresses resist its bending. The resistance offered by the internal stresses, to the bending, is called
Options- A. compressive stress
- B. shear stress
- C. bending stress
- D. elastic modulus Discuss
Correct Answer: bending stress
- 10. If the diameter of pressure vessel is 15 times the wall thickness, the vessel is said to be a thick shell.
Options- A. Agree
- B. Disagree Discuss
Correct Answer: Agree
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