Q. The centre of gravity of the volume of the liquid displaced is called

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Q. Which of the following is an example of laminar flow?

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Q. The pressure less than atmospheric pressure is known as

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Q. The total energy line lies over the hydraulic gradient line by an amount equal to the

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Q. A structure whose width is __________ the width of the channel, is called a flumed structure.

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Q. The maximum efficiency of transmission through a pipe is

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Q. The weight per unit volume of a liquid at a standard temperature and pressure is called

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Q. The centre of buoyancy is the centre of area of the immersed body.

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Q. The metacentric heights of two floating bodies A and B are 1 m and 1.5 m respectively. Select the correct statement.

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Q. In open channels, the specific energy is the

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Q. The Bernoulli's equation is based on the assumption that

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Q. According to equation of continuity,

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Q. Coefficient of resistance is the ratio of

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Q. In order to measure the flow with a venturimeter, it is installed in

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Q. The discharge through a large rectangular orifice is given by (where H1 = Height of the liquid above the top of the orifice, H2 = Height of the liquid above the bottom of the orifice, b = Breadth of the orifice, and Cd = Coefficient of discharge)

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Q. The diameter of the nozzle (d) for maximum transmission of power is given by (where D = Diameter of pipe, f = Darcy 's coefficient of friction for pipe, and l = Length of pipe )

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Q. The discharge over a right angled notch is (where H = Height of liquid above the apex of notch)

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Q. A weir is said to be broad crested weir, if the width of the crest of the weir is __________ half the height of water above the weir crest.

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Q. A vertical wall is subjected to a pressure due to one kind of liquid, on one of its sides. The total pressure on the wall per unit length is (where w = Specific weight of liquid, and H = Height of liquid)

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Q. An error of 1% in measuring head over the apex of the notch (H) will produce an error of __________ in discharge over a triangular notch.

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