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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Q. A compound pipe of diameter d1, d2 and d3 having lengths l1, l2 and l3 is to be replaced by an equivalent pipe of uniform diameter d and of the same length (l) as that of the compound pipe. The size of the equivalent pipe is given by

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Q. The velocity corresponding to Reynold number of 2800, is called

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Q. When the pipes are in series, the total head loss is equal to the sum of the head loss in each pipe.

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Q. Whenever a plate is held immersed at some angle with the direction of flow of the liquid, it is subjected to some pressure. The component of this pressure, at right angles to the direction of flow of the liquid is known as lift.

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Q. The efficiency of power transmission through pipe is (where H = Total supply head, and hf = Head lost due to friction in the pipe)

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Q. The velocity at which the laminar flow stops, is known as

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