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Mechanical Engineering :: Hydraulics and Fluid Mechanics

Hydraulics and Fluid Mechanics - Section 1
Hydraulics and Fluid Mechanics - Section 2
Hydraulics and Fluid Mechanics - Section 3
Hydraulics and Fluid Mechanics - Section 4
Hydraulics and Fluid Mechanics - Section 5
Hydraulics and Fluid Mechanics - Section 6
Hydraulics and Fluid Mechanics - Section 7
Hydraulics and Fluid Mechanics - Section 8
Hydraulics and Fluid Mechanics - section-5
  1. The discharge over a rectangular notch is (where b = Width of notch, and H = Height of liquid, above the sill of the notch)

    2. A.

     (2/3) Cd × b × √(2gH)
    B.

     (2/3) Cd × b × √(2g) × H
    C.

     (2/3) Cd × b × √(2g) × H3/2
    D.

     (2/3) Cd × b × √(2g) × H2

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  2. An ideal flow of any fluid must fulfill the following

    3. A.

     Newton's law of motion
    B.

     Newton's law of viscosity
    C.

     Pascal' law
    D.

     Continuity equation

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  3. Venturimeter is used to

    4. A.

     Measure the velocity of a flowing liquid
    B.

     Measure the pressure of a flowing liquid
    C.

     Measure the discharge of liquid flowing in a pipe
    D.

     Measure the pressure difference of liquid flowing between two points in a pipe line

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  4. The centre of pressure acts __________ the centre of gravity of immersed surface.

    5. A.

     At
    B.

     Above
    C.

     Below
    D.

     None of these

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  5. In a free nappe,

    6. A.

     The pressure below the nappe is atmospheric
    B.

     The pressure below the nappe is negative
    C.

     The pressure above the nappe is atmospheric
    D.

     The pressure above the nappe is negative

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  6. In a static fluid

    7. A.

     Resistance to shear stress is small
    B.

     Fluid pressure is zero
    C.

     Linear deformation is small
    D.

     Only normal stresses can exist

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  7. The unit of kinematic viscosity in S. I. units is

    8. A.

     N-m/s
    B.

     N-s/m2
    C.

     m2/s
    D.

     N-m

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  8. Center of pressure on an inclined plane is

    9. A.

     At the Centroid
    B.

     Above the Centroid
    C.

     Below the Centroid
    D.

     At metacentre

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  9. Low specific speed of turbine implies it is

    10. A.

     Propeller turbine
    B.

     Francis turbine
    C.

     Impulse turbine
    D.

     Any one of the above

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  10. Medium specific speed of turbine implies it is

    11. A.

     Propeller turbine
    B.

     Francis turbine
    C.

     Impulse turbine
    D.

     Any one of the above

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