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Chemical Engineering :: Chemical Process

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

  2. A.

     Explosive

    B.

     Rocket fuel

    C.

     Detergents additive

    D.

     None of these


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

  4. A.

     Freeze drying

    B.

     Electrolytic

    C.

     Solar evaporation

    D.

     Vacuum evaporation


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

  6. A.

     1 to 5

    B.

     5 to 10

    C.

     15 to 20

    D.

     20 to 30


  7. Paper grade bamboo contains about __________ percent cellulose.

  8. A.

     5

    B.

     20

    C.

     40

    D.

     60


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

  10. A.

     0.6

    B.

     1.2

    C.

     2.2

    D.

     3.8


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

  12. A.

     Bond paper

    B.

     Writing paper

    C.

     Blotting paper

    D.

     Coloured paper


  13. Fish contains about __________ percent oil.

  14. A.

     5

    B.

     10

    C.

     20

    D.

     35


  15. Phenolic antiseptics are added in the __________ soap.

  16. A.

     Shaving

    B.

     Medicated

    C.

     Metallic

    D.

     Transparent


  17. Transportation of 35% oleum during winter suffers from the problem of freezing, which can be overcome by the addition of small quantity of

  18. A.

     Nitric acid

    B.

     Hydrochloric acid

    C.

     Methyl alcohol

    D.

     Formic acid


  19. Oxygen is produced by fractionation of air using __________ process.

  20. A.

     Linde's

    B.

     Claude's

    C.

     Either A or B

    D.

     None of these