Fluid Mechanics Boundary layer separation occurs when the Valve is closed in a pipeline Cross-section of the channel is reduced Velocity of sound is reached Pressure reaches a minimum Valve is closed in a pipeline Cross-section of the channel is reduced Velocity of sound is reached Pressure reaches a minimum ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics For turbulent fluid flow in pipe, the expression for Prandtl one seventh power law is (where, r = pipe radius, x = distance). V/Vmax = (x.r)1/7 V/Vmax = (r/x)1/7 None of these V/Vmax = (x/r)1/7 V/Vmax = (x.r)1/7 V/Vmax = (r/x)1/7 None of these V/Vmax = (x/r)1/7 ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics In case of turbulent flow of a Newtonion fluid in a straight pipe, the maximum velocity is equal to (where, Vavg = average fluid velocity) 1.2 Vavg Vavg 1.8 Vavg 1.5 Vavg 1.2 Vavg Vavg 1.8 Vavg 1.5 Vavg 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 12 mm/s 28 mm/s 16 mm/s 24 mm/s 12 mm/s 28 mm/s 16 mm/s 24 mm/s ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics Momentum transfer in laminar flow of fluids results due to the Density Viscosity Velocity gradient None of these Density Viscosity Velocity gradient None of these ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics Vane anemometer Is a variable head meter Is an area meter Rotates an element at a speed determined by the velocity of the fluid in which the meter is immersed None of these Is a variable head meter Is an area meter Rotates an element at a speed determined by the velocity of the fluid in which the meter is immersed None of these ANSWER DOWNLOAD EXAMIANS APP
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