Q. N²ʀₑ/Nғᵣ is called the __________ number.

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Q. As the velocity V and thus the Reynolds number of a flow past a sphere increases from very low value, the drag force for Re << 1

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Q. The pressure head of a flow meter remains constant for

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Q. A venturimeter can not be used for the direct measurement of

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Q. A double acting reciprocating pump compared to a single acting pump (of almost same size working under same pressure levels) would give almost double

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Q. Which of the following is used for very accurate measurement of flow of gas at low velocity ?

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Q. A centrifugal pump has the following specifications:

Power = 4 H.P.
Speed = 800 rpm
Head = 8 metres
Flow = 1000 litres/minutes.

If its speed is halved, the new discharge will be __________ litres/minute.

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Q. The dimension of kinematic viscosity is

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Q. A pipe of I.D. 4 m is bifurcated into two pipes of I.D. 2 m each. If the average velocity of water flowing through the main pipe is 5 m/sec, the average velocity through the bifurcated pipes is

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Q. Turbulent flow generally occurs for cases involving

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Q. Lower BWG means __________ of the tube.

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Q. Which of the following pipe bends will incur the largest head loss ?

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Q. Which is the most efficient and best for measuring very small flow rate of gases ?

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Q. When the water is warm, the height to which it can be lifted by a pump

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Q. Pipes having diameter 14 inches or more are designated by their

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Q. Viscosity of water at 40°C lies in the range of

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Q. Self-priming centrifugal pump can be used for

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Q. Water hammer is caused, when water flowing in a pipe is suddenly brought to rest by closing the valve. The extent of pressure thus produced due to water hammer depends on the

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Q. Bernoull's equation does not apply to the functioning of a/an

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Q. What is the shear rate at the pipe wall, in case of laminar flow of Newtonion fluids in a pipe of diameter 'D' & length 'L' incurring a pressure drop 'Δp' with average velocity 'Vₐᵥ'?

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