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Chemical Engineering :: Chemical Engineering Basics

  1. Boiler tube size is specified by its thickness and __________ diameter.

  2. A.
    outside
    B.
    inside
    C.
    mean
    D.
    none of these

  3. Break even point represents the condition, when the company runs under no profit no loss condition. In break even analysis, total cost comprises of fixed cost

  4. A.
    only.
    B.
    plus variable cost.
    C.
    plus overhead cost.
    D.
    plus selling expenses.

  5. Unit of surface tension in S.I. unit is

  6. A.
    Watt/m
    B.
    Joule/m2
    C.
    Newton/m2
    D.
    Joule/m

  7. The joint for soldering is supported by binding wire made of

  8. A.
    mild steel
    B.
    copper
    C.
    soft iron
    D.
    stainless steel

  9. The main reducing agent in iron blast furnace is

  10. A.
    carbon dioxide
    B.
    carbon monoxide
    C.
    oxygen
    D.
    air

  11. Young's modulus of a material is the measure of its

  12. A.
    stiffness
    B.
    malleability
    C.
    creep resistance
    D.
    tensile strength

  13. Which of the following is not used as a bearing material ?

  14. A.
    Copper-lead alloys
    B.
    Babbits
    C.
    Bronzes
    D.
    Cermets

  15. Brass parts with high residual tensile stress at the surface are susceptible to season cracking (i.e. spontaneous cracking occuring on exposure to atmospheric corrosion), if its zinc percentage is more than

  16. A.
    5
    B.
    10
    C.
    20
    D.
    35

  17. Water flow in the river during flood can be categorised as the __________ flow.

  18. A.
    unsteady uniform
    B.
    unsteady non-uniform
    C.
    steady uniform
    D.
    steady non-uniform

  19. Basicity [%Cao + %MgO/% SiO2) of the slag in Indian blast furnace is in the range of

  20. A.
    0.7-1.0
    B.
    1.1-1.4
    C.
    1.5 - 1.8
    D.
    2.0 - 2.5