Q. Capacity of a rotary gear pump can be varied by

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Q. For a given Reynolds number, in a hydraulically smooth pipe, further smoothening __________ the friction factor.

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Q. Power number is the ratio of

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Q. The frictional resistance in laminar flow does not depend on the

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Q. A venturimeter measures the

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Q. Gradually varying fluid flow is an example of __________ flow.

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Q. Drag is the force component exerted on an immersed object,

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Q. To handle smaller quantity of fluid at higher discharge pressure, use a __________ pump.

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Q. In area meter (e.g., rotameter), with increase in the fluid flow rate, the

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Q. The buoyant force acting on a floating body is dependent on the

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Q. A Newtonion fluid is that

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Q. A bed consists of particles of density 2000 kg/m³. If the height of the bed is 1.5 metres and its porosity 0.6, the pressure drop required to fluidise the bed by air is

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Q. Cavitation in a pump creates so many undesirable effects. Out of the following, which is not an undesirable effect created by cavitation ?

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Q. For a specific centrifugal air blower operating at constant speed & capacity, the power requirement and pressure vary

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Q. Capillary tube method of viscosity measurement is based on the

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Q. It is possible to integrate an automatic flow controller to a

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Q. If Blausius or Darcey friction factor is 'f₁' then the Fanning friction factor is equal to

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Q. Pick out the wrong statement pertaining to fluid flow.

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Q. A Newtonion liquid (ρ = density, μ = viscosity) is flowing with velocity v in a tube of diameter 'D'. Let Δp be the pressure drop across the length 'L'. For a laminar flow, Δp is proportional to

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Q. While starting a centrifugal pump, its delivery valve should be kept

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