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Chemical Engineering :: Chemical Engineering Basics-2

  1. Wrought iron is not

  2. A.

     Uctile & resistant to corrosion/rusting

    B.

     Weldable easily

    C.

     Having uniform strength in all directions

    D.

     Having maximum tensile strength along the lines of slag distribution


  3. Pick out the wrong statement.

  4. A.

     Dry bulb temperature, wet bulb temperature & dew point are the same in case of saturated air

    B.

     Dew point is reached by cooling the humid air at constant moisture content

    C.

     Heating of humid air is done for its dehumidification

    D.

     None of these


  5. Color of brass changes from yellow to __________ after its dezincification which exemplifies selective leaching.

  6. A.

     Grey

    B.

     Red

    C.

     Orange

    D.

     Violet


  7. Out of the following, the materials having maximum magnetic permeability is

  8. A.

     Silicon steel (Si = 4%)

    B.

     Cast iron

    C.

     Wrought iron

    D.

     Mild steel


  9. The phenomenon occurring during explosion of a hydrogen bomb is

  10. A.

     Nuclear fission

    B.

     Nuclear fusion

    C.

     A combination of both nuclear fission & fusion

    D.

     None of these


  11. X-rays are

  12. A.

     Positively charged

    B.

     Negatively charged

    C.

     Neutral

    D.

     Of higher wavelength than visible light


  13. Minimum thermal efficiency of a steam boiler may be around __________ percent

  14. A.

     25

    B.

     45

    C.

     65

    D.

     20


  15. Optical activity is a/an __________ property.

  16. A.

     Additive

    B.

     Constitutive

    C.

     Both A & B

    D.

     Neither A nor B


  17. The most important requirement for aluminium industry is the availability of cheap

  18. A.

     Ore

    B.

     Electrical power

    C.

     Labour

    D.

     & abundant water


  19. Shampoos are commercially not available in the form of

  20. A.

     Powder

    B.

     Gaseous mixture

    C.

     Solution

    D.

     Emulsion