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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. When a plate is immersed in a liquid parallel to the flow, it will be subjected to a pressure __________ that if the same plate is immersed perpendicular to the flow.

    2. A.

    less than
    B.

    more than

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  2. The hydraulic mean depth for a circular pipe of diameter (d) is

    3. A.

    d/6
    B.

    d/4
    C.

    d/2
    D.

    d

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  3. The tangential velocity of the water element having a free vortex is

    4. A.

    directly proportional to its distance from the centre
    B.

    inversely proportional to its distance from the centre
    C.

    directly proportional to its (distance)2 from the centre
    D.

    inversely proportional to its (distance)2 from the centre

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

    5. A.

    N-m/s
    B.

    N-s/m2
    C.

    m2/s
    D.

    N-m

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  5. A fluid whose viscosity does not change with the rate of deformation or shear strain is known as

    6. A.

    real fluid
    B.

    ideal fluid
    C.

    newtonian fluid
    D.

    non-newtonian fluid

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