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Chemical Engineering :: Chemical Engineering Basics

  1. Fluorine is not a constituent of

  2. A.
    freon
    B.
    chloroform
    C.
    teflon
    D.
    fluorocarbons

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  3. The most commonly used combustion system manufactured in India for the thermal power plant boilers is the __________ combustion system.

  4. A.
    pulverised fuel
    B.
    travelling grate stoker firing
    C.
    circulating fluidised bed
    D.
    fluidised bed

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  5. During solid state sintering of powders, the following mechanism can be active.

  6. A.
    Evaporation and condensation.
    B.
    Solid state diffusion processes.
    C.
    Liquid formation in grain boundaries.
    D.
    Creation of more dislocations.

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  7. The transition temperature at which all the ferromagnetic materials become paramagnetic materials is termed as the 'Curie temperature'. Its value for cobalt is __________ °C.

  8. A.
    768
    B.
    1127
    C.
    1359
    D.
    1480

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  9. Regeneration of molecular seive requires it to be heated to a temperature of about __________ °C.

  10. A.
    80-120
    B.
    200-300
    C.
    600-800
    D.
    1000-1100

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  11. The ultimate strength in tension for steel is __________ times the ultimate strength in shear.

  12. A.
    0.5
    B.
    0.9
    C.
    1.5
    D.
    2.5

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  13. The activity of pure hydrogen gas at 1000°C and 5 atm pressure

  14. A.
    is always less than 1.
    B.
    is always greater than 1.
    C.
    can be 5.
    D.
    depends on the choice of the standard state.

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  15. Which of the following transducers is most commonly used for the measurement of shock and vibration ?

  16. A.
    Linear variable differential transducer (LVDT)
    B.
    Dial gauge
    C.
    Accelerometer
    D.
    none of these

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  17. The power of a low capacity prime mover is most suitably measured by a __________ type dynamometer.

  18. A.
    driving
    B.
    transmission
    C.
    absorption
    D.
    none of these

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  19. __________ addition increases the depth of hardness of steel.

  20. A.
    Chromium
    B.
    Nickel
    C.
    Tungsten
    D.
    Vanadium

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