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Chemical Engineering Basics-2 - Section-1
  1. The dimensional formula of bulk modulus of elasticity is same as that of the

    2. A.

     Pressure
    B.

     Density
    C.

     Force
    D.

     None of these

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  2. Surface finish of casting does not depend upon the

    3. A.

     Sand fineness
    B.

     Pattern finish
    C.

     Mould dressings
    D.

     Metal temperature

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  3. The minimum and the maximum number of members required to form a Private Limited Joint Stock Company are respectively

    4. A.

     7 and 30
    B.

     10 and 50
    C.

     2 and 50
    D.

     13 and 55

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  4. The elastic strain in copper is due to the

    5. A.

     Motion of dislocations
    B.

     Stretching of atomic bonds
    C.

     Breakage of atomic bonds
    D.

     None of the above

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  5. The ratio of the shear stress to the principal stress on a principal plane is

    6. A.

     0
    B.

     1
    C.

     1/2
    D.

     1/3

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  6. In electrical resistance welding, distortion results from the use of improper

    7. A.

     Clamping methods
    B.

     Electrodes
    C.

     Current
    D.

     Filler material

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  7. With increase in pressure, the latent heat of steam

    8. A.

     Increases
    B.

     Decreases
    C.

     Remains unchanged
    D.

     Data insufficient; can't be predicted

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  8. Oxide layer formed on the non-ferrous metal surface after its annealing is

    9. A.

     Removed by acid pickling
    B.

     Hammered into the surface
    C.

     Removed with coarse emery cloth
    D.

     Left as such to protect the surface

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  9. Solidification time of a molten metal in a casting is proportional to (where, V = volume of metal & A = its surface area ; in the casting)

    10. A.

     V/A
    B.

     V/A²
    C.

     V²/A
    D.

     V²/A²

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  10. Surface tension of a liquid

    11. A.

     Is due to intermolecular forces of cohesion
    B.

     Decreases with rise in temperature
    C.

     Is responsible for the spherical shape of an isolated liquid drop
    D.

     All of the above

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