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Chemical Engineering :: Chemical Process

  1. Which of the following processes is absent in glass manufacturing process?

  2. A.

     Sintering

    B.

     Annealing

    C.

     Shaping or forming

    D.

     Melting


  3. A good quality coal should have

  4. A.

     Low fusion point of ash

    B.

     High ash content

    C.

     High sulphur content

    D.

     None of these


  5. The ideal pulp for the manufacture of paper should have high __________ content.

  6. A.

     Cellulose

    B.

     Lignin

    C.

     Both A & B

    D.

     None of these


  7. __________ glass has the lowest co-efficient of thermal expansion and hence is more heat resistant.

  8. A.

     Pyrex

    B.

     Soda lime

    C.

     Lead

    D.

     High silica


  9. Rotary kiln is not involved in the production of

  10. A.

     Cement

    B.

     Lime from limestone

    C.

     Slaked lime from quick lime

    D.

     None of these


  11. Which is the main reducing agent during production of iron from iron ore in a blast furnace?

  12. A.

     C

    B.

     CO

    C.

     CO₂

    D.

     H₂


  13. Which of the following is a constituent of vinegar?

  14. A.

     Around 10% alcohol

    B.

     Around 1% acetic acid

    C.

     Both A and B

    D.

     Neither A nor B


  15. The most popular and common detergent i.e., alkyl benzene sulfonate (ABS) is a/an __________ detergent.

  16. A.

     Cationic

    B.

     Anionic

    C.

     Amphoteric

    D.

     Semi polar


  17. __________ acid is an unsaturated fatty acid.

  18. A.

     Palmitic

    B.

     Oleic

    C.

     Stearic

    D.

     Oxalic


  19. Carbon content of pitch (residue of coal tar distillation) is around __________ percent.

  20. A.

     70

    B.

     55

    C.

     80

    D.

     94