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Chemical Engineering :: Fluid Mechanics

Fluid Mechanics - Section 1
Fluid Mechanics - Section 2
Fluid Mechanics - Section 3
Fluid Mechanics - Section 4
Fluid Mechanics - Section 5
Fluid Mechanics - Section 6
Fluid Mechanics - Section 7
Fluid Mechanics - Section 8
Fluid Mechanics - Section 9
Fluid Mechanics - Section 10
Fluid Mechanics - Section 11
Fluid Mechanics - Section 12
Fluid Mechanics - Section 13
Fluid Mechanics - Section 14
Fluid Mechanics - Section 15
Fluid Mechanics - Section 16
Fluid Mechanics - Section-17

  1. Which of the following fluid forces are not considered in the Navier-Stoke's equation?

    2. A.
    Gravity forces
    B.
    Viscous forces
    C.
    Pressure forces
    D.
    Turbulent forces

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  2. Which of the following may be termed as a variable orifice flowmeter ?

    3. A.
    Rotameter
    B.
    Pitot tube
    C.
    V-notch
    D.
    All (a), (b) and (c)

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  3. In turbulent flow, a rough pipe has the same friction factor as a smooth pipe

    4. A.
    in the zone of complete turbulence.
    B.
    when the roughness projections are much smaller than the thickness of the laminar film.
    C.
    everywhere in the transition zone.
    D.
    when the friction factor is independent of the Reynold's number.

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  4. Air vessel provided in a reciprocating pump

    5. A.
    smoothens the flow by avoiding pulsations.
    B.
    increases the volumetric efficiency of the pump.
    C.
    saves the pump from the danger of cavitation.
    D.
    none of these.

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  5. Bernoulli's equation is dependent on the

    6. A.
    first law of thermodynamics.
    B.
    third law of thermodynamics.
    C.
    law of conservation of momentum.
    D.
    none of these.

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  6. The capacity of an accumulator is the maximum

    7. A.
    energy which it can store.
    B.
    discharge which it can deliver.
    C.
    liquid which it can store.
    D.
    none of these.

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  7. With increase in the temperature, viscosity of a liquid

    8. A.
    increases
    B.
    decreases
    C.
    remains constant
    D.
    may increase or decrease; depends on the liquid

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  8. Vena-contracta pressure tapping is at a distance __________ from the position of an orificemeter fitted in a pipe of internal diameter 'd'

    9. A.
    d
    B.
    0.5 d
    C.
    2d
    D.
    4d

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  9. The pump impeller and the turbine runner in a hydraulic torque converter

    10. A.
    have the same diameter.
    B.
    have different diameters.
    C.
    are directly coupled.
    D.
    none of these.

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  10. Reciprocating pumps compared to centrifugal pumps

    11. A.
    deliver liquid at uniform pressure.
    B.
    can handle slurries more efficiently.
    C.
    are not subject to air binding.
    D.
    can be operated with delivery valve closed.

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