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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


  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


  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


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

  8. A.

     Entropy

    B.

     Pressure

    C.

     Volume

    D.

     Heat


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

  10. A.

     Knoop

    B.

     Rockwell F

    C.

     Shore sceleroscope

    D.

     Vicker's


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

  12. A.

     Soldering

    B.

     Welding

    C.

     Brazing

    D.

     Rivetting


  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


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

  16. A.

     10000

    B.

     1000

    C.

     100

    D.

     10


  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


  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