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  • Question
  • Elastic failure of a material occurs, when the tensile stress equals yield strength, yield point or the elastic limit. Also, the elastic failure occurs according to maximum strain theory, when the maximum tensile strain equals (where, ? = yield strength and E = modulus of elasticity)


  • Options
  • A. E
  • B. ?
  • C. ?/E
  • D. E/?

  • Correct Answer
  • ?/E 


  • More questions

    • 1. Pick out the correct statement.

    • Options
    • A. Deforestation helps in controlling the green house effect.
    • B. Global warming is detrimental for increase in food productivity and may cause flood and cyclone.
    • C. Lightening discharges are natural source of production of SO2 & H2S pollutant.
    • D. Sulhur dioxide causes death by asphyxiation.
    • Discuss
    • 2. __________ atmosphere is maintained inside an iron blast furnace.

    • Options
    • A. Oxidising
    • B. Reducing
    • C. Inert
    • D. Decarburising
    • Discuss
    • 3. The boiling points for pure water and pure toluene are 100°C and 110.6°C respectively. Toluene and water are completely immiscible in each other. A well agitated equimolar mixture of toluene and water are prepared. If, at a total pressure of one standard atm. exerted by the vapours of water and toluene, the mole fraction of water Xw in the vapour phase satisfies

    • Options
    • A. 0 < Xw < 0.5
    • B. Xw = 0.5
    • C. 0.5 < Xw < 1.0
    • D. Xw = 1.0
    • Discuss
    • 4. Condensation of bisphenol A with phosgene produces __________ which possess very good heat resistance.

    • Options
    • A. polyurathane
    • B. polysulphone
    • C. polycarbonate
    • D. polyester
    • Discuss
    • 5. The vacuum maintained in vacuum distillation unit for reduced crude is about __________ mmHg.

    • Options
    • A. 1.2
    • B. 12
    • C. 120
    • D. 700
    • Discuss
    • 6. Buna-S is also called

    • Options
    • A. polyurathane
    • B. SBR
    • C. teflon
    • D. bakelite
    • Discuss
    • 7. Dead zone in an instrument must be less than __________ percent of the scale.

    • Options
    • A. 0.2
    • B. 1.5
    • C. 4
    • D. 8
    • Discuss
    • 8. Fireclay bricks are used in the

    • Options
    • A. furnaces allowed to cool frequently
    • B. flues
    • C. chimney linings
    • D. all (a), (b) and (c)
    • Discuss
    • 9. Aniline point of high speed diesel may be about __________ °C.

    • Options
    • A. 35
    • B. 70
    • C. 105
    • D. 150
    • Discuss
    • 10. Ebonite is a/an

    • Options
    • A. highly vulcanised rubber.
    • B. natural rubber.
    • C. unvulcanised raw rubber.
    • D. adhesive.
    • Discuss


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