Menu
Home / Chemical Engineering / Chemical Process :: Section-15

Chemical Engineering :: Chemical Process

Chemical Process - Section 1
Chemical Process - Section 2
Chemical Process - Section 3
Chemical Process - Section 4
Chemical Process - Section 5
Chemical Process - Section 6
Chemical Process - Section 7
Chemical Process - Section 8
Chemical Process - Section 9
Chemical Process - Section 10
Chemical Process - Section 11
Chemical Process - Section 12
Chemical Process - Section 13
Chemical Process - Section 14
Chemical Process - Section-15
  1. Refractory bricks burnt at very high temperature have got

    2. A.

     Greater resistance to corrosion by slags
    B.

     Less resistance to corrosion by slags
    C.

     High spalling tendency
    D.

     None of these

    View Answer

    Workspace

    Discuss Discuss in Forum

  2. Viscose rayon

    3. A.

     Cannot be made from sulphite pulp
    B.

     Utilises H₂SO₄, NaOH and CS₂ during its manufacture
    C.

     Cannot yield textile grade fibre
    D.

     None of these

    View Answer

    Workspace

    Discuss Discuss in Forum

  3. Viscose rayon is

    4. A.

     Cellulose nitrate
    B.

     Regenerated cellulose nitrate
    C.

     Regenerated cellulose acetate
    D.

     None of these

    View Answer

    Workspace

    Discuss Discuss in Forum

  4. Viscose rayon is chemically

    5. A.

     Cellulose nitrate
    B.

     Regenerated cellulose nitrate
    C.

     Cellulose acetate
    D.

     Regenerated cellulose acetate

    View Answer

    Workspace

    Discuss Discuss in Forum

  5. Vulcanisation of rubber

    6. A.

     Decreases its tensile strength
    B.

     Increases its ozone & oxygen reactivity
    C.

     Increases its oil & solvent resistance
    D.

     Converts its plasticity into elasticity

    View Answer

    Workspace

    Discuss Discuss in Forum

  6. The biochemical treatment applied to sewage effluents is a process of

    7. A.

     Dehydration
    B.

     Reduction
    C.

     Oxidation
    D.

     Polymerisation

    View Answer

    Workspace

    Discuss Discuss in Forum

  7. Washing of coal is done to

    8. A.

     Remove the inherent impurities
    B.

     Remove the adhering impurities
    C.

     Reduce the ash content
    D.

     Both B and C

    View Answer

    Workspace

    Discuss Discuss in Forum

  8. Wax is a

    9. A.

     Mixture of glycerides
    B.

     Mixture of esters of polyhydric alcohols excepting glycerine
    C.

     Liquid at room temperature
    D.

     Mixture of glycerides of fatty acids

    View Answer

    Workspace

    Discuss Discuss in Forum

  9. Molecular weight of plastics ranges from

    10. A.

     5000 to 10000
    B.

     20000 to 250000
    C.

     500 to 5000
    D.

     106 to l09

    View Answer

    Workspace

    Discuss Discuss in Forum

  10. Which is a high grade pulp?

    11. A.

     Rag pulp
    B.

     Mechanical pulp
    C.

     Sulphate pulp
    D.

     Sulphite pulp

    View Answer

    Workspace

    Discuss Discuss in Forum

Java Programming Questions and Answers Interview Questions and Answers