Q. In continuous fluidisation

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Q. Drag force on the float of a rotameter is(where Q = flow rate of the )

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Q. The unit of dynamic viscosity in SI unit is

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Q. Pressure drop (Δp) for a fluid flowing in turbulent flow through a pipe is a function of velocity (V) as

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Q. Dean number is concerned with the

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Q. Out of the following flow measuring devices, which one incurs the maximum installation cost as well as pressure loss ?

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Q. For turbulent fluid flow in pipe, the expression for Prandtl one seventh power law is (where, r = pipe radius, x = distance).

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Q. Which of the following has the maximum compression ratio ?

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Q. Scale up of agitator design requires

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Q. The head loss in turbulent flow in pipe is proportional to(where, V = velocity of fluid through the pipe)

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Q. Unsteady non-uniform flow is represented by flow through a/an

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Q. Prandtl number is a measure of the

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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, then the new head will be __________ metres.

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Q. In hindered settling, the particles are

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Q. A bed of spherical particles (specific gravity 2.5) of uniform size 1500 μm is 0.5 m in diameter and 0.5 m high. In packed bed state, the porosity may be taken as 0.4. Ergun's equation for the above fluid-particle system (in SI units) is given below :

Δ P/L = 375 x 10³ Vₒₘ + 10.94 x 10⁶ V²ₒₘ (SI units)

If water is to be used as the fluidising medium, in actual operation, the above bed has a height = 1 m. What is the porosity of the fluidised bed ?

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Q. Dimension of kinematic viscosity is

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Q. A streamline is a line in flow field,

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Q. While starting an axial flow pump, its delivery valve should be kept

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Q. __________ forces do not act in case of fluid flow.

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Q. An ideal plastic substance indicates no deformation, when stressed upto yield stress, but behaves like a Newtonion fluid beyond yield stress. Which of the following is an ideal plastic ?

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