Discussion
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- Question
The elongation of a conical bar under its own weight is __________ that of prismatic bar of the same length.
Options- A. equal to
- B. half
- C. one-third
- D. two-third
- Correct Answer
- one-third
- 1. The efficiency of a riveted joint is the ratio of the strength of the joint to the strength of the solid plate.
Options- A. True
- B. False Discuss
- 2. The shear force of a simply supported beam carrying a central point load changes sign at its midpoint.
Options- A. Correct
- B. Incorrect Discuss
- 3. For a 25 mm hole drilled in plates, the diameter of rivet shank should be
Options- A. 23mm
- B. 24.5mm
- C. 25mm
- D. 26mm Discuss
- 4. When two shafts of same length, one of which is hollow, transmit equal torques and have equal maximum stress, then they should have equal
Options- A. polar moment of inertia
- B. polar modulus
- C. diameter
- D. angle of twist Discuss
- 5. When a closely-coiled helical spring is subjected to an axial load, it is said to be under
Options- A. bending
- B. shear
- C. torsion
- D. crushing Discuss
- 6. The Rankine's theory for active earth pressure is based on the assumption that
Options- A. the retained material is homogeneous and cohesionless
- B. the frictional resistance between the retaining wall and the retained material is neglected
- C. the failure of the retained material takes place along a plane called rupture plane
- D. all of the above Discuss
- 7. An overhanging beam must overhang on both sides.
Options- A. Correct
- B. Incorrect Discuss
- 8. A thin spherical shell of diameter (d) and thickness (t) is subjected to an internal pressure (p). The stress in the shell material is
Options- A. pd/t
- B. pd/2t
- C. pd/4t
- D. pd/8t Discuss
- 9. The maximum tangential stress in a thick cylindrical shell is always __________ the internal pressure acting on the shell.
Options- A. equal to
- B. less than
- C. greater than Discuss
- 10. The bending moment 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
Strength of Materials problems
Search Results
Correct Answer: True
Correct Answer: Correct
Correct Answer: 23mm
Correct Answer: polar modulus
Correct Answer: torsion
Correct Answer: all of the above
Correct Answer: Correct
Correct Answer: pd/4t
Correct Answer: greater than
Correct Answer: wl2/8
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