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Chemical Engineering :: Chemical Engineering Basics-2

  1. Deformation band is absent in materials having __________ lattice crystal structure.

  2. A.

     Fcc

    B.

     Bcc

    C.

     Hcp

    D.

     None of these

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  3. The wet bulb temperature is lower in dry air than in wet air at the same temperature. A dry bulb thermometer registers a higher temperature than a wet bulb thermometer except at __________ percent relative humidity.

  4. A.

     0

    B.

     100

    C.

     50

    D.

     None of these

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  5. A psychrometer does not measure the __________ temperature of moist air.

  6. A.

     Dew point

    B.

     Dry bulb

    C.

     Wet bulb

    D.

     None of these

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  7. Carnot cycle is also termed as the constant __________ cycle in thermodynamics.

  8. A.

     Entropy

    B.

     Pressure

    C.

     Volume

    D.

     Heat

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  9. Grain hardness is measured by the __________ hardness testing method.

  10. A.

     Knoop

    B.

     Rockwell F

    C.

     Shore sceleroscope

    D.

     Vicker's

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  11. Out of the following, the joint produced by __________ has the lowest strength.

  12. A.

     Soldering

    B.

     Welding

    C.

     Brazing

    D.

     Rivetting

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  13. Corrosion rate can not be lowered by reducing the __________ of the corroding medium.

  14. A.

     Concentration

    B.

     Velocity

    C.

     Temperature

    D.

     None of these

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  15. 1% concentration of water vapor in air is equivalent to __________ ppm (parts per million).

  16. A.

     10000

    B.

     1000

    C.

     100

    D.

     10

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  17. Measurement of the area of the indented surface is not involved in the __________ hardhes testing method.

  18. A.

     Vicker's

    B.

     Rockwell

    C.

     Knoop

    D.

     Brinell

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  19. Hollow shafts can be made as strong as solid shafts by making the twisting moments of both the shafts same. Shafts made by __________ have residual stresses.

  20. A.

     Forging

    B.

     Cold rolling

    C.

     Hot rolling

    D.

     Casting

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