logo

CuriousTab

CuriousTab

Discussion


Home Mechanical Engineering Strength of Materials Comments

  • Question
  • When a bar is cooled to - 5°C, it will develop


  • Options
  • A. no stress
  • B. shear stress
  • C. tensile stress
  • D. compressive stress

  • Correct Answer
  • tensile stress 


  • Strength of Materials problems


    Search Results


    • 1. Two shafts 'A' and 'B' transmit the same power. The speed of shaft 'A' is 250 r.p.m. and that of shaft 'B' is 300 r.p.m. The shaft 'B' has the greater diameter.

    • Options
    • A. True
    • B. False
    • Discuss
    • 2. Two closely coiled helical springs 'A' and 'B' are equal in all respects but the number of turns of spring 'A' is half that of spring 'B' The ratio of deflections in spring 'A' to spring 'B' is

    • Options
    • A. 1/8
    • B. 1/4
    • C. 1/2
    • D. 2
    • Discuss
    • 3. The maximum diameter of the hole that can be punched from a plate of maximum shear stress 1/4th of its maximum crushing stress of punch, is equal to (where t = Thickness of the plate)

    • Options
    • A. t
    • B. 2t
    • C. 4t
    • D. 8t
    • Discuss
    • 4. In a simple bending of beams, the stress in the beam varies

    • Options
    • A. linearly
    • B. parabolically
    • C. hyperbolically
    • D. elliptically
    • Discuss
    • 5. The simply supported beam 'A' of length l carries a central point load W. Another beam 'B' is loaded with a uniformly distributed load such that the total load on the beam is W. The ratio of maximum deflections between beams A and B is

    • Options
    • A. 5/8
    • B. 8/5
    • C. 5/4
    • D. 4/5
    • Discuss
    • 6. Whenever a material is loaded within elastic limit, stress is __________ strain.

    • Options
    • A. equal to
    • B. directly proportional to
    • C. inversely proportional to
    • Discuss
    • 7. The neutral axis of the cross-section a beam is that axis at which the bending stress is

    • Options
    • A. zero
    • B. minimum
    • C. maximum
    • D. infinity
    • Discuss
    • 8. The stress at which the extension of the material takes place more quickly as compared to the increase in load, is called

    • Options
    • A. elastic limit
    • B. yield point
    • C. ultimate point
    • D. breaking point
    • Discuss
    • 9. Which of the following statement is correct?

    • Options
    • A. The energy stored in a body, when strained within elastic limit is known as strain energy.
    • B. The maximum strain energy which can be stored in a body is termed as proof resilience.
    • C. The proof resilience per unit volume of a material is known as modulus of resilience.
    • D. all of the above
    • Discuss
    • 10. The point of contraflexure is a point where

    • Options
    • A. shear force changes sign
    • B. bending moment changes sign
    • C. shear force is maximum
    • D. bending moment is maximum
    • Discuss


    Comments

    There are no comments.

Enter a new Comment