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Chemical Engineering :: Chemical Engineering Basics-2

  1. The product of a commercial direct reduction process is

  2. A.

     Liquid iron

    B.

     Solid iron

    C.

     Sponge iron

    D.

     Iron saturated with carbon

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  3. __________ flux is used for the extraction of metal from its self fluxing ores.

  4. A.

     No

    B.

     Acid

    C.

     Basic

    D.

     Neutral

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  5. Metals in general have a low value of thermal

  6. A.

     Conductivity

    B.

     Diffusivity

    C.

     Inertia

    D.

     All of the above

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  7. The machanism involved in the removal of metal in drilling operation is by

  8. A.

     Compression

    B.

     Extrusion

    C.

     Shearing

    D.

     Both A & C

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  9. Spheriodising of a material is a/an __________ process.

  10. A.

     Normalising

    B.

     Annealing

    C.

     Tempering

    D.

     Hardening

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  11. Good design of the casing of a centrifugal pump aims at minimising the

  12. A.

     Cavitation

    B.

     Frictional losses

    C.

     Kinetic energy loss

    D.

     Static head

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  13. The maximum axial compression stress during cold upsetting of a cylinderical rod of radius (r) occurs at

  14. A.

     The outer edge of the rod

    B.

     R/3 from the centre

    C.

     R/2 from the centre

    D.

     The centre

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  15. Nuclear fission of one atom of uranium⁻²35 produces the energy equivalent to about __________ MeV.

  16. A.

     20

    B.

     200

    C.

     500

    D.

     1000

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  17. Fahrenheit and Centigrade scales have the same readings at

  18. A.

     -55°

    B.

     -40°

    C.

     -33°

    D.

     -58°

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  19. A solution which resists change in its pH value on addition of acid/alkali is called the __________ solution.

  20. A.

     Neutral

    B.

     Ideal

    C.

     Buffer

    D.

     Zero pH

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