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Home Mechanical Engineering Strength of Materials See What Others Are Saying!
  • Question
  • Two shafts 'A' and 'B' are made of same material. The shaft 'A' is solid and has diameter D. The shaft 'B' is hollow with outer diameter D and inner diameter D/2. The strength of hollow shaft in torsion is __________ as that of solid shaft.


  • Options
  • A. 1/16
  • B. 1/8
  • C. 1/4
  • D. 15/16

  • Correct Answer
  • 15/16 


  • More questions

    • 1. A compound steam engine in which piston rods of high pressure and low pressure cylinders are attached to two different cranks set at 90° to each other, is called

    • Options
    • A. receiver type compound engine
    • B. Tandem type compound engine
    • C. Woolf type compound engine
    • D. both (a) and (b)
    • Discuss
    • 2. If two bodies having masses m1 and m2 (m1>m2) have equal kinetic energies, the momentum of body having mass m1 is __________ the momentum of body having mass m2.

    • Options
    • A. equal to
    • B. less than
    • C. greater than
    • Discuss
    • 3. Scheduling

    • Options
    • A. prescribes the sequence of operations to be followed
    • B. determines the programme for the operations
    • C. is concerned with starting of processes
    • D. regulates the progress of job through various processes
    • Discuss
    • 4. The error in discharge (dQ/Q) to the error in measurement of head (dH/H) over a triangular notch is given by

    • Options
    • A.
    • B.
    • C.
    • D.
    • Discuss
    • 5. The coefficient of restitution for elastic bodies is one.

    • Options
    • A. Correct
    • B. Incorrect
    • Discuss
    • 6. The fuel that detonates easily, is

    • Options
    • A. n-heptane
    • B. iso-octane
    • C. benzene
    • D. alcohol
    • Discuss
    • 7. The ratio of the workdone on the blades per kg of steam to the total energy supplied per stage per kg of steam is called

    • Options
    • A. blading efficiency
    • B. nozzle efficiency
    • C. stage efficiency
    • D. mechanical efficiency
    • Discuss
    • 8. The angle between two forces when the resultant is maximum and minimum respectively are

    • Options
    • A. 0° and 180°
    • B. 180° and 0°
    • C. 90° and 180°
    • D. 90° and 0°
    • Discuss
    • 9. The equivalent length of a simple pendulum which gives the same frequency as compound pendulum is

    • Options
    • A.
    • B.
    • C.
    • D.
    • Discuss
    • 10. The object of supercharging the engine is

    • Options
    • A. to reduce mass ofthe engine per brake power
    • B. to reduce space occupied by the engine
    • C. to increase the power output of an engine when greater power is required
    • D. all ofthe above
    • Discuss


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