Fluid Mechanics Scale up of agitator design requires Dynamic similarity only Geometrical similarity only All of these Both geometrical and dynamic similarity Dynamic similarity only Geometrical similarity only All of these Both geometrical and dynamic similarity ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics Pressure drag does not depend upon the Roughness of surface of the body All of these Length of the body in flow direction Pressure of main flow only Roughness of surface of the body All of these Length of the body in flow direction Pressure of main flow only 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 24 mm/s 28 mm/s 16 mm/s 12 mm/s 24 mm/s 28 mm/s 16 mm/s 12 mm/s ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics The ratio of hydrodynamic boundary layer to thermal boundary layer thickness in case of liquid metals is < 1 1 2 > 1 < 1 1 2 > 1 ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics If two capillary tubes of dia 0.5 mm and 1 mm are dipped in a pot containing mercury, then the rise of mercury is Greater in 1 mm dia tube Zero in both the tubes Greater in 0.5 mm dia tube Same in both the tubes Greater in 1 mm dia tube Zero in both the tubes Greater in 0.5 mm dia tube Same in both the tubes ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics If the head over the triangular notch is doubled, the discharge will increase by __________ times. 2.828 5.657 4 2 2.828 5.657 4 2 ANSWER DOWNLOAD EXAMIANS APP
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