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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Q. For the two dimensional flow, the stream function is given by ψ = 2xy. The velocity at a point (3, 4) is

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Q. A floating body attains stable equilibrium if its metacentre is

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Q. The unit of the viscosity is

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Q. A stepped notch is a combination of

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Q. The centre of pressure of a vertical plane immersed in a liquid is at

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Q. The ratio of the hydraulic radius of a pipe running full to the hydraulic radius of a square section of a channel whose side is equal to the diameter of the pipe, is

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Q. A body of dimensions 1.5 m x 1.0 m x 2 m weighs 3000 kg in water. Its specific gravity is

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Q. An orifice is called a large orifice if water head, is

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Q. Water flows through a convergent mouthpiece of diameter 4 cm at convergence under a head of 3 metres. If the maximum vacuum pressure is 9 metres of water, the maximum diameter of divergence, to aviod separation of flow, is

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Q. An ideal fluid

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Q. In C.G.S. system the units of kinematic viscosity, is

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Q. A triangular notch is preferred to a rectangular notch because

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Q. In case of laminar flow through a circular pipe,

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Q. The discharge through an internal mouth piece is more if its length is

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