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Chemical Engineering :: Fluid Mechanics

  1. The pressure head of a flow meter remains constant for

  2. A.
    venturimeter
    B.
    orificemeter
    C.
    rotameter
    D.
    pitot tube

  3. A venturimeter can not be used for the direct measurement of

  4. A.
    datum difference in the stretch of pipeflow
    B.
    pressure difference in the flow throughpipeline.
    C.
    friction loss in pipe flow.
    D.
    all (a), (b) and (c).

  5. A double acting reciprocating pump compared to a single acting pump (of almost same size working under same pressure levels) would give almost double

  6. A.
    head
    B.
    discharge
    C.
    efficiency
    D.
    none of these

  7. Which of the following is used for very accurate measurement of flow of gas at low velocity ?

  8. A.
    Pitot tube
    B.
    Rotameter
    C.
    Segmental orificemeter
    D.
    Hot wire annemometer

  9. The rate of shear versus the shear stress curves are time dependent for __________ fluid.

  10. A.
    thixotropic
    B.
    rheopectic
    C.
    both (a) & (b)
    D.
    neither (a) nor (b)

  11. In Newton's law range, the drag co-efficient for the motion of spherical particle in a stationary fluid is

  12. A.
    0.44
    B.
    0.044
    C.
    4.4
    D.
    44

  13. A pressure of 10 m head of water is equivalent to __________ kN/m2.

  14. A.
    98
    B.
    147
    C.
    196
    D.
    49

  15. A pressure head of 320 metres of water in meters of CCl4 (sp.gr = 1.6) will be

  16. A.
    100
    B.
    200
    C.
    320
    D.
    160

  17. Pick out the Kozney-Karman equation (valid for low NRe) for fluid flow through a packed bed of solids.