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Home ‣ Mechanical Engineering ‣ Strength of Materials See What Others Are Saying!
  • Question

  • Modulus of rigidity may be defined as the ratio of


  • Options
  • A. linear stress to lateral strain
  • B. lateral strain to linear strain
  • C. linear stress to linear strain
  • D. shear stress to shear strain

  • Correct Answer
  • shear stress to shear strain 

    • More questions

    • 1. The neutral axis of a transverse section of a beam passes through the centre of gravity of the section and is

    • Options
    • A. in the vertical plane
    • B. in the horizontal plane
    • C. in the same plane in which the beam bends
    • D. at right angle to the plane in which the beam bends
      • Discuss
    • 2. Thinner is added to the paint in order to

    • Options
    • A. make pigments and resin mix easily
    • B. make paint film hard
    • C. optimise its viscosity
    • D. none of these
      • Discuss
    • 3. The pressure at the end of compression, in diesel engines, is approximately

    • Options
    • A. 10 bar
    • B. 20 bar
    • C. 25 bar
    • D. 35 bar
      • Discuss
    • 4. A binary vapour plant consists of

    • Options
    • A. steam turbine
    • B. steam condenser
    • C. mercury boiler
    • D. all of these
      • Discuss
    • 5. Damper in an automobile is used to

    • Options
    • A. absorb the energy
    • B. dissipate the energy
    • C. release the energy
    • D. increase the energy
      • Discuss
    • 6. The discharge of a double acting reciprocating pump is (where L = Length of stroke, A = Cross-sectional area of piston, and N = Speed of crank in r.p.m.)

    • Options
    • A. L.A.N
    • B. 2 L.A.N
    • C.
    • D.
      • Discuss
    • 7. The torque required to overcome viscous resistance of a footstep bearing is (where ? = Viscosity of the oil, N = Speed of the shaft, R = Radius of the shaft, and t = Thickness of the oil film)

    • Options
    • A.
    • B.
    • C.
    • D.
      • Discuss
    • 8. The type of tool used on lathe, shaper and planer is

    • Options
    • A. single point cutting tool
    • B. two point cutting tool
    • C. three point cutting tool
    • D. multi-point cutting tool
      • Discuss
    • 9. The loss of kinetic energy due to direct impact of two bodies __________ upon the value of coefficient of restitution.

    • Options
    • A. depends
    • B. does not depend
      • Discuss
    • 10. The polygon law of forces states that if a number of forces, acting simultaneously on a particle, be represented in magnitude and direction by the sides a polygon taken in order, then their resultant is represented in magnitude and direction by the closing side of the polygon, taken in opposite direction.

    • Options
    • A. Correct
    • B. Incorrect
      • Discuss

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