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Chemical Engineering :: Chemical Process

  1. A mixture of chlorine & sodium bromide acts as a/an

  2. A.

     Insecticides

    B.

     Analgesic drug

    C.

     Fire retardant

    D.

     Hydrogenation catalyst


  3. __________ are used as corrosion inhibitor for iron & steel in aqueous solutions.

  4. A.

     Phosphates

    B.

     Chromates

    C.

     Sulphates

    D.

     Bi-carbonates


  5. Hydrazine (N₂H₄) is used mainly as a/an

  6. A.

     Explosive

    B.

     Rocket fuel

    C.

     Detergents additive

    D.

     None of these


  7. Common salt is generally not produced commonly by __________ method from brine.

  8. A.

     Freeze drying

    B.

     Electrolytic

    C.

     Solar evaporation

    D.

     Vacuum evaporation


  9. Sugar content in sugarcane on cane basis is about __________ percent by weight.

  10. A.

     1 to 5

    B.

     5 to 10

    C.

     15 to 20

    D.

     20 to 30


  11. Paper grade bamboo contains about __________ percent cellulose.

  12. A.

     5

    B.

     20

    C.

     40

    D.

     60


  13. Production of one ton of cement requires about __________ tons of limestone.

  14. A.

     0.6

    B.

     1.2

    C.

     2.2

    D.

     3.8


  15. Which of the following paper does not require a filler during manufacture?

  16. A.

     Bond paper

    B.

     Writing paper

    C.

     Blotting paper

    D.

     Coloured paper


  17. Fish contains about __________ percent oil.

  18. A.

     5

    B.

     10

    C.

     20

    D.

     35


  19. Phenolic antiseptics are added in the __________ soap.

  20. A.

     Shaving

    B.

     Medicated

    C.

     Metallic

    D.

     Transparent