Home / Chemical Engineering / Chemical Engineering Basics-2 :: Section-1

Chemical Engineering :: Chemical Engineering Basics-2

  1. A hot short metal is

  2. A.

     Hard when hot

    B.

     Brittle when cold

    C.

     Brittle when hot

    D.

     Brittle under all conditions


  3. Out of the following substances, one ton of __________ will store the maximum heat for a rise of 30°C in temperature.

  4. A.

     Steel

    B.

     Lignite

    C.

     Water

    D.

     Lime stone


  5. A static fluid can not have

  6. A.

     Zero shear stress

    B.

     Positive normal stress

    C.

     Non-zero shear stress

    D.

     None of these


  7. Percentage of differential pressure lost in a venturimeter with a tapering of 15° may be about

  8. A.

     1

    B.

     10

    C.

     25

    D.

     50


  9. Maximum permissible air velocity in pipelines is about __________ metre/second.

  10. A.

     5

    B.

     10

    C.

     20

    D.

     40


  11. Aluminium oxide (an abrasive) is used for grinding

  12. A.

     Ceramics

    B.

     High speed steel

    C.

     Cemented carbide

    D.

     None of these


  13. For infinite parallel planes having emis-sivities ε₁ & ε₂, the interchange factor for radiation from surface 1 to surface 2 is given by

  14. A.

     (ε₁ + ε₂)/ε₁.ε₂

    B.

     Ε₁.ε₂/(ε₁ + ε₂ - ε₁.ε₂)

    C.

     Ε₁.ε₂

    D.

     Ε₁ + ε₂


  15. In case of simple harmonic motion, displacement is proportional to the

  16. A.

     Velocity

    B.

     Acceleration

    C.

     Both A & B

    D.

     Neither A nor B


  17. The refractory brick which has good thermal shock resistance at high temperature but cracks on cooling below 400°C is

  18. A.

     Magnesite

    B.

     Chrome

    C.

     Silica

    D.

     Fireclay


  19. The path and movements followed by men, materials & equipments in executing the activities is indicated by the

  20. A.

     Travel charts

    B.

     Man-machine charts

    C.

     String diagram

    D.

     Flow diagram