logo

CuriousTab

CuriousTab

Discussion

Home ‣ Mechanical Engineering ‣ Strength of Materials Comments
  • Question

  • A thick cylindrical shell having ro and ri as outer and inner radii, is subjected to an internal pressure (p). The maximum tangential stress at the inner surface of the shell is


  • Options
  • A. A thick cylindrical shell having ro and ri as outer and inner radii, is subjected to an internal pre
  • B. A thick cylindrical shell having ro and ri as outer and inner radii, is subjected to an internal pre
  • C. A thick cylindrical shell having ro and ri as outer and inner radii, is subjected to an internal pre
  • D. A thick cylindrical shell having ro and ri as outer and inner radii, is subjected to an internal pre

  • Correct Answer
  •  

    • Strength of Materials problems

    Search Results

    • 1. The maximum bending moment for the beam shown in the below figure, lies at a distance of __________ from the end B.

    • Options
    • A. l/2
    • B. l/3
    • C.
    • D.
      • Discuss
    • 2. 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 maximum normal stress will be

    • Options
    • A. 400 MPa
    • B. 500 MPa
    • C. 900 MPa
    • D. 1400 MPa
      • Discuss
    • 3. Euler's formula holds good only for

    • Options
    • A. short columns
    • B. long columns
    • C. both short and long columns
    • D. weak columns
      • Discuss
    • 4. The torque transmitted by a solid shaft of diameter (D) is (where ? = Maximum allowable shear stress)

    • Options
    • A. x ? x D3
    • B. x ? x D3
    • C. x ? x D3
    • D. x ? x D3
      • Discuss
    • 5. 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
    • 6. A composite shaft consisting of two stepped portions having spring constants k1 and k2 is held between two rigid supports at the ends. Its equivalent spring constant is

    • Options
    • A.
    • B.
    • C.
    • D. k1+k2
      • Discuss
    • 7. In the casing of a centrifugal pump, the kinetic energy of the water is converted into pressure energy before the water leaves the casing.

    • Options
    • A. True
    • B. False
      • Discuss
    • 8. For centrifugal pump impeller, the maximum value of the vane exit angle is

    • Options
    • A. 10° to 15°
    • B. 15° to 20°
    • C. 20° to 25°
    • D. 25° to 30°
      • Discuss
    • 9. The specific speed of a centrifugal pump, delivering 750 litres of water per second against a head of 15 metres at 725 r.p.m., is

    • Options
    • A. 24.8 r.p.m.
    • B. 48.2 r.p.m
    • C. 82.4 r.p.m.
    • D. 248 r.p.m
      • Discuss
    • 10. When the speed of the pump increases, its net positive suction head (NPSH) requirement decreases.

    • Options
    • A. Agree
    • B. Disagree
      • Discuss

    Comments

    There are no comments.
Enter a new Comment




Aptitude

Engineering

Programming

Reasoning

Links

Copyright ©CuriousTab. All rights reserved.