Chemical Engineering :: Fluid Mechanics
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The pressure drop per unit length of pipe incurred by a fluid 'X' flowing through pipe is Δp. If another fluid 'Y' having both the specific gravity & density just double of that of fluid 'X', flows through the same pipe at the same flow rate/average velocity, then the pressure drop in this case will be
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Fluid flow in a/an __________ is an example of pressure flow.
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In the laminar boundary layer flow over a flat plate, the ratio (δ/x) varies as :(where, 'δ' is the boundary layer thickness and 'x' is the distance from the leading edge in the direction of flow).
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A rotameter through which air at room temperature and atmospheric pressure is flowing gives a certain reading for a flow rate of 100 cc/sec. If helium (molecular weight 4) is used and rotameter shows the same reading, the flow rate (cc/sec) is
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A 0.5 m high bed made up of a 1 mm dia glass sphere (density 2500 kg/m3 ) is to be fluidised by water (density 1000 kg/m3 ). If at the point of incipient fluidisation, the bed voidage is 40%, the pressure drop across the bed is
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Absolute viscosity of a fluid is a function of the __________ of the fluid.
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Select the wrong statement pertaining to flow of an incompressible fluid through a venturimeter.
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Reynolds number for water flow through a tube of I.D. 5 cm is 1500. If a liquid of 5 centipoise viscosity and 0.8 specific gravity flows in the same pipe at the same velocity, then the pressure drop will
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The bulk modulus of elasticity of a liquid
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The inherent characteristic of an equal percentage valve relating flow rate 'q' with valve stem movement 'x' are described by the equation
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A.
For frictionless flow, the fluid pressure entering the venturi meter will be exactly equal to that leaving the venturimeter.
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B.
Discharge of fluid through a venturimeter depends upon the gage difference irrespective of the orientation of venturimeter.
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C.
Venturimeter occupies less space than an orificemeter.
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D.
Venturimeter incurs less power loss compared to an equivalent orificemeter.
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