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Home Mechanical Engineering Strength of Materials See What Others Are Saying!
  • Question
  • A shaft of diameter D is subjected to a twisting moment (T) and a bending moment (M). If the maximum bending stress is equal to maximum shear stress developed, then M is equal to


  • Options
  • A. T/2
  • B. T
  • C. 2T
  • D. 4T

  • Correct Answer
  • T/2 


  • More questions

    • 1. Which of the following statement is correct?

    • Options
    • A. In a compressible flow, the volume of the flowing liquid changes during the flow.
    • B. A flow in which the volume of the flowing liquid does not change, is called incompressible flow.
    • C. When the particles rotate about their own axes while flowing, the flow is said to be rotational flow.
    • D. all of the above
    • Discuss
    • 2. Which one of the following event would reduce volumetric efficiency of a vertical compression ignition engine?

    • Options
    • A. inlet valve closing after bottom dead centre
    • B. inlet valve closing before bottom dead centre
    • C. inlet valve opening before top dead centre
    • D. exhaust valve closing after top dead centre
    • Discuss
    • 3. Which of the following statement is correct?

    • Options
    • A. Compression ratio for petrol engines varies from 6 to 10.
    • B. Higher compression ratio in diesel engines results in higher pressures.
    • C. Petrol engines work on Otto cycle.
    • D. all of the above
    • Discuss
    • 4. Which of the following fuel detonates readily?

    • Options
    • A. Benzene
    • B. Iso-octane
    • C. Normal heptane
    • D. Alcohol
    • Discuss
    • 5. Which of the following does not relate to a spark ignition engine?

    • Options
    • A. Ignition coil
    • B. Spar kplug
    • C. Carburettor
    • D. Fuel injector
    • Discuss
    • 6. Which of the following fuel has little tendency towards detonation?

    • Options
    • A. Benzene
    • B. Iso-octane
    • C. Normal heptane
    • D. Alcohol
    • Discuss
    • 7. Which one of the following is the effect of blade shape on performance of a centrifugal compressor?

    • Options
    • A. Backward curved blades has poor efficiency
    • B. Backward curved blades lead to stable performance
    • C. Forward curved blades has higher efficiency
    • D. Forward curved blades produce lower pressure ratio
    • Discuss
    • 8. Which of the following statement is wrong?

    • Options
    • A. The reaction turbines are used for low head and high discharge.
    • B. The angle of taper on draft tube is less than 8°.
    • C. An impulse turbine is generally fitted slightly above the tail race.
    • D. A Francis turbine is an impulse turbine.
    • Discuss
    • 9. A turbine is required to develop 1500 kW at 300 r.p.m. under a head of 150 m. Which of the following turbine should be used?

    • Options
    • A. Pelton wheel with one nozzle
    • B. Pelton wheel with two or more nozzles
    • C. Kaplan turbine
    • D. Francis turbine
    • Discuss
    • 10. Which of the following statement is correct?

    • Options
    • A. The centrifugal pump is suitable for large discharge and smaller heads.
    • B. The centrifugal pump requires less floor area and simple foundation as compared to reciprocating pump.
    • C. The efficiency of centrifugal pump is less as compared to reciprocating pump.
    • D. all of the above
    • Discuss


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