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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. A flow is called sub-sonic, if the Mach number is

    2. A.

    less than unity
    B.

    unity
    C.

    between 1 and 6
    D.

    more than 6

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  2. The discharge of a depressed nappe is 6 to 7 percent __________ that of a free nappe.

    3. A.

    less than
    B.

    more than

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  3. Re-entrant or Borda's mouthpiece is an __________ mouthpiece.

    4. A.

    internal
    B.

    externalNo answer description available for this question.

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  4. The flow in a pipe is neither laminar nor turbulent when Reynold number is

    5. A.

    less than 2000
    B.

    between 2000 and 2800
    C.

    more than 2800
    D.

    none of these

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  5. The intensity of pressure on an immersed surface __________ with the increase in depth.

    6. A.

    does not change
    B.

    increases
    C.

    decreases

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