Fluid Mechanics The Prandtl mixing length is Useful for computing laminar flow problems Independent of the shear stress Zero at the pipe wall and is a universal constant Independent of radial distance from the pipe axis Useful for computing laminar flow problems Independent of the shear stress Zero at the pipe wall and is a universal constant Independent of radial distance from the pipe axis ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics Cavitation in a centrifugal pump results from High discharge velocity High discharge pressure High discharge rate Low barometric pressure High discharge velocity High discharge pressure High discharge rate Low barometric pressure ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics The fluid in which the shearing stress within it is proportional to the velocity gradient across the sheared section, is called a __________ fluid. Newtonion Bingham None of these Perfect Newtonion Bingham None of these Perfect ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics The equivalent diameter for flow through a rectangular duct of width B and height H is HB/(H + B) 4HB/(H + B) HB/2(H + B) 2HB/(H + B) HB/(H + B) 4HB/(H + B) HB/2(H + B) 2HB/(H + B) ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics Which of the following is used for very accurate measurement of flow of gas at low velocity? Pitot tube Hot wire annemometer Segmental orificemeter Rotameter Pitot tube Hot wire annemometer Segmental orificemeter Rotameter ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics 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 28 mm/s 12 mm/s 24 mm/s 16 mm/s 28 mm/s 12 mm/s 24 mm/s 16 mm/s ANSWER DOWNLOAD EXAMIANS APP
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