Strength of Materials problems
- 1. When one plate overlaps the other and the two plates are riveted together with two rows of rivets, the joint is known as
Options- A. single riveted lap joint
- B. double riveted lap joint
- C. double riveted single cover butt joint
- D. double riveted double cover butt joint Discuss
Correct Answer: double riveted lap joint
- 2. A beam of uniform strength may be obtained by
Options- A. keeping the width uniform and varying the depth
- B. keeping the depth uniform and varying the width
- C. varying the width and depth both
- D. any one of the above Discuss
Correct Answer: any one of the above
- 3. A bar of length L metres extends by l mm under a tensile force of P. The strain produced in the bar is
Options- A. l/L
- B. 0.1 l/L
- C. 0.01 l/L
- D. 0.001 l/L Discuss
Correct Answer: 0.001 l/L
- 4. The maximum deflection of a fixed beam carrying a central point load lies at
Options- A. fixed ends
- B. centre of beam
- C. l/3 from fixed ends
- D. none of these Discuss
Correct Answer: centre of beam
- 5. A body is subjected to a tensile stress of 1200 MPa on one plane and another tensile stress of 600 MPa on a plane at right angles to the former. It is also subjected to a shear stress of 400 MPa on the same planes. The minimum normal stress will be
Options- A. 400 MPa
- B. 500 MPa
- C. 900 MPa
- D. 1400 MPa Discuss
Correct Answer: 400 MPa
- 6. When a circular bar tapering uniformly from diameter d1, at one end to diameter d2 at the other end, is subjected to an increase in temperature (t), then the thermal stress induced is (where ? = Coefficient of linear expansion, and E = Modulus of elasticity for the bar material)
Options- A.
- B.
- C.
- D.
Discuss
Correct Answer:
- 7. The thermal or temperature stress is a function of
Options- A. increase in temperature
- B. modulus of elasticity
- C. coefficient of linear expansion
- D. all of these Discuss
Correct Answer: all of these
- 8. The springs in brakes and clutches are used to
Options- A. to apply forces
- B. to measure forces
- C. to store strain energy
- D. to absorb shocks Discuss
Correct Answer: to apply forces
- 9. The maximum deflection of a fixed beam of length l carrying a central point load W is
Options- A.
- B.
- C.
- D.
Discuss
Correct Answer:
- 10. The shear force and bending moment are zero at the free end of a cantilever beam, if it carries a
Options- A. point load at the free end
- B. point load at the middle of its length
- C. uniformly distributed load over the whole length
- D. none of the above Discuss
Correct Answer: uniformly distributed load over the whole length
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