Q. For a most economical rectangular channel, the width of the channel must be

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Q. The hydrostatic force acts through

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Q. In an inclined position, a venturimeter records

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Q. If H is the depth of water retained by a vertical wall, the height of centre of pressure above the bottom is

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Q. For maximum power transmission through a nozzle, (where hf is the head lost due to friction)

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Q. 'Flow net' can be drawn only if the flow is

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Q. The flow in open channel is laminar if the Reynold number is

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Q. The width of a weir with end contraction, is

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Q. An open container filled with water is moved vertically upward with a uniform linear acceleration. The pressure at its bottom will be

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Q. The gases are considered incompressible if Match number is

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

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Q. Centre of buoyancy is

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Q. The intensity of pressure due to sudden closure of a valve of a pipe in which water flows with velocity v, is directly proportional to :

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Q. Total energy line is

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Q. For critical flow, the Froude number is :

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Q. The dimensionless parameter not applicable to flowing liquids, is

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Q. The pressure rise due to water hammer depends upon

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Q. In a two dimensional flow if the components of the velocity are u = ax ; v = by, the point where no motion occurs, is known as

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Q. Most economical section of a circular channel for maximum velocity, is if,

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Q. When a liquid rotates at constant angular velocity about a vertical axis of a rigid body, the pressure

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