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Hydraulics and Fluid Mechanics - Mechanical Engineering Questions and Answers

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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 specific gravity of water is taken as

    2. A.

    0.001
    B.

    0.01
    C.

    0.1
    D.

    1

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  2. The specific gravity of an oil whose specific weight is 7.85 kN/m3, is

    3. A.

    0.8
    B.

    1
    C.

    1.2
    D.

    1.6

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  3. The body will float if the force of buoyancy is __________ the weight of the liquid displaced.

    4. A.

    equal to
    B.

    less than
    C.

    more than

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  4. According to Darcy's formula, the loss of head due to friction in the pipe is (where f = Darcy's coefficient, l = Length of pipe, v = Velocity of liquid in pipe, and d = Diameter of pipe)

    5. A.

    \(\frac { f /v^2} { 2gd }\)
    B.

    \(\frac { f /v^2} { gd }\)
    C.

    \(\frac { 3f /v^2} { 2gd }\)
    D.

    \(\frac { 4 f /v^2} { 2gd }\)

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  5. The ratio of specific weight of a liquid to the specific weight of pure water at a standard temperature is called

    6. A.

    density of liquid
    B.

    specific gravity of liquid
    C.

    compressibility of liquid
    D.

    surface tension of liquid

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