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Chemical Engineering :: Chemical Engineering Basics

  1. Maximum carbon content in cast iron is __________ percent.

  2. A.
    3.8
    B.
    4
    C.
    4.3
    D.
    4.6

  3. Screws are specified by their __________ diameters.

  4. A.
    minor
    B.
    major
    C.
    pitch
    D.
    none of these

  5. The stress at which extension of the material takes place more rapidly as compared to the increase in load is termed as the __________ point of the material.

  6. A.
    elastic
    B.
    ultimate
    C.
    yielding
    D.
    breaking

  7. A material being tested for endurance strength is subjected to the __________ load.

  8. A.
    impact
    B.
    completely reversed
    C.
    dynamic
    D.
    static & dynamic

  9. With increase in pressure, the latent heat of steam

  10. A.
    increases.
    B.
    decreases.
    C.
    remains unchanged.
    D.
    data insufficient; can't be predicted.

  11. 'Flare tower' used in industry is meant for

  12. A.
    venting off (after burning) the excess inflammable/toxic gases at high pressure.
    B.
    absorbing the pollutant gases from the furnace exhaust.
    C.
    cooling of furnace exhaust gases.
    D.
    none of these.

  13. Which of the following has the highest modulus of elasticity (about 7 x 106 kg/cm2) ?

  14. A.
    High speed steel
    B.
    Stainless steel
    C.
    Tungsten carbide
    D.
    Superalloys

  15. Electrolytic reduction cell used for conversion of calcined Al2O3 to Al is a carbon lined furnace operating at 800-900 °C. The purpose of electric current supplied to the furnace is to

  16. A.
    achieve very high purity of aluminium (99.9%).
    B.
    keep the electrolyte in liquid condition by the generation of heat.
    C.
    electrolytically dissociate alumina.
    D.
    both(b) & (c).

  17. All radiations falling on a black body are

  18. A.
    refracted
    B.
    reflected
    C.
    transmitted
    D.
    absorbed

  19. Styrofoam is the commercial name of

  20. A.
    polyurathene
    B.
    polystyrene
    C.
    polyacrylonitrile
    D.
    polybutadiene