Menu
Home / Chemical Engineering / Mechanical Operations :: Section 7

Chemical Engineering :: Mechanical Operations

Mechanical Operations - Section 1
Mechanical Operations - Section 2
Mechanical Operations - Section 3
Mechanical Operations - Section 4
Mechanical Operations - Section 5
Mechanical Operations - Section 6
Mechanical Operations - Section 7
Mechanical Operations - Section 8
Mechanical Operations - Section 9

  1. Fick's law relates to

    2. A.
    energy consumption
    B.
    final particle size
    C.
    feed size
    D.
    none of these

    View Answer

    Workspace

    Discuss Discuss in Forum

  2. __________ mill is normally used for grinding of talc.

    3. A.
    Tube
    B.
    Compartment
    C.
    Ring-roll
    D.
    Pebble

    View Answer

    Workspace

    Discuss Discuss in Forum

  3. Colloidal mills are used for __________ grinding.

    4. A.
    coarse
    B.
    intermediate
    C.
    fine
    D.
    ultrafine

    View Answer

    Workspace

    Discuss Discuss in Forum

  4. Fluid medium used in the classification technique of mineral beneficiation is

    5. A.
    air
    B.
    water
    C.
    either (a) or (b)
    D.
    neither (a) nor (b)

    View Answer

    Workspace

    Discuss Discuss in Forum

  5. The maximum slope of a belt conveyor can be

    6. A.
    15°
    B.
    30°
    C.
    45°
    D.
    60°

    View Answer

    Workspace

    Discuss Discuss in Forum

  6. The filter medium resistance is controlled by

    7. A.
    pressure drop alone
    B.
    flow rate alone
    C.
    both pressure drop and flow rate
    D.
    cake thickness

    View Answer

    Workspace

    Discuss Discuss in Forum

  7. The unit of filter medium resistance is

    8. A.
    cm-1
    B.
    gm/cm-1
    C.
    cm/gm-1
    D.
    gm-1

    View Answer

    Workspace

    Discuss Discuss in Forum

  8. During size reduction by a jaw crusher, the energy consumed decreases with the

    9. A.
    decreasing size of product at constant size of feed.
    B.
    decreasing machine capacity.
    C.
    increasing size of feed at constant reduction ratio.
    D.
    none of these.

    View Answer

    Workspace

    Discuss Discuss in Forum

  9. Which of the following can be most effectively used for clarification of lube oil and printing ink?

    10. A.
    Sparkler filter
    B.
    Precoat filter
    C.
    Disc-bowl centrifuge
    D.
    Sharpies supercentrifuge

    View Answer

    Workspace

    Discuss Discuss in Forum

  10. Ultracentrifuges running at speeds upto 100000 rpm is normally used for the

    11. A.
    separation of isotopes based on their density or molecular weights difference.
    B.
    concentration of rubber latex.
    C.
    separation of cream from milk.
    D.
    dewaxing of lubricating oil.

    View Answer

    Workspace

    Discuss Discuss in Forum

Java Programming Questions and Answers Interview Questions and Answers