Q. The pressure at a point 4 m below the free surface of water is

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Q. A structure used to dam up a stream or river over which the water flows is called

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Q. The coefficient of discharge for an external mouthpiece depends upon

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Q. The depth of centre of pressure lor an immersed surface inclined at an angle θ with the liquid surface lies at a distance equal to __________ the centre of gravity.

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Q. The water pressure per metre length on a vertical masonry wall of dam is (where w = Specific weight of the liquid, and H = Height of the liquid)

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Q. Froude's number is the ratio of inertia force to

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Q. According to Chezy's formula, the discharge through an open channel is (where A = Area of flow, C = Chezy's constant, m = Hydraulic mean depth, and i = Uniform slope in bed)

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Q. When a liquid is flowing through a pipe, the velocity of the liquid is

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Q. The pressure of fluid due to hammer blow is

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Q. A flow in which each liquid particle has a definite path, and the paths of individual particles do not cross each other, is called

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Q. A body floating in a liquid is said to be in neutral equilibrium, if its metacentre

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Q. One cubic metre of water weighs

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Q. Surface tension force is the product of surface tension per unit length and cross-sectional area of flow.

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Q. An average value of coefficient of velocity is

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Q. When a tube of smaller diameter is dipped in water, the water rises in the tube with an upward __________ surface.

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Q. An orifice is said to be large, if

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Q. The flow in a pipe or channel is said to be uniform when

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Q. The density of a liquid in kg/m³ is numerically equal to its specific gravity.

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Q. The critical depth meter is used to measure

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Q. The velocity of flow is same at all points in the cross-section of a channel.

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