The resistance wire used in a hot wire anemometer for conducting electrical current is made of
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Chemical Engineering · all questionsFluid Mechanics
Fluid Mechanics
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Liquid delivery by centrifugal pump starts, only when the head developed by it is equal to the __________ head.
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The Mach number for hypersonic flow of compressible fluid is
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Which of the following is used for very accurate measurement of flow of gas at low velocity?
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For laminar flow through a closed conduit
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Shear stress in a fluid flowing in a round pipe
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Select the wrong statement pertaining to flow of an incompressible fluid through a venturimeter.
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Two fluids are flowing through two similar pipes of the same diameter. The Reynold's number is same. For the same flow rate if the viscosity of a fluid is reduced to half the value of the first fluid, the pressure drop will
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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, the minimum fluidisation velocity, VOM is
Δ P/L = 375 x 103 VOM + 10.94 x 106 V2OM (SI units)
If water is to be used as the fluidising medium, the minimum fluidisation velocity, VOM is
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A venturimeter can not be used for the direct measurement of
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Which of the following produces maximum pressure difference for transportation of gases?
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A centrifugal pump is used to pump water through a horizontal distance of 150 m, and then raised to an overhead tank 10 m above. The pipe is smooth with an I.D. of 50 mm. What head (m of water) must the pump generate at its exit (E) to deliver water at a flow rate of 0.001 m3/s? The Fanning friction factor, f is 0.0062.
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The nominal size of a hose pipe is specified by its
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Rise of liquid in a capillary tube is due to
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The normal stress is the same in all directions at a point in a fluid, when the fluid is
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Interstage coolers are provided in a multistage compressor to
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Purpose of relief valve in a reciprocating pump is to
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Function of air vessel provided in a reciprocating pump is to
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The speed of sound in an ideal gas varies as the
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The energy loss in flow through ven-turimeter is less than that through flow nozzle, because in case of a flow nozzle, the
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