Fluid Mechanics Steady fluid flow occurs, when the derivative of flow variables satisfy the following condition. ∂/∂t = 0 ∂/∂s = constant ∂/∂s = 0 ∂/∂t = constant ∂/∂t = 0 ∂/∂s = constant ∂/∂s = 0 ∂/∂t = constant ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics What is the force required (in Newtons) to hold a spherical balloon stationary in water at a depth of H from the air-water iterface? The balloon is of radius 0.1 m and is filled with air. 0.01πgH/4 0.01πgH/8 4πg/3 0.04πgH/3 0.01πgH/4 0.01πgH/8 4πg/3 0.04πgH/3 ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics The ratio of inertial forces to viscous forces is called the __________ number. Froude Reynold Mach Weber Froude Reynold Mach Weber 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 = (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 ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics The hydrodynamic and thermal boundary layers will merge, when Schmidt number tends to infinity Nusselt number tends to infinity Prandtl number is one Archimedes number is greater than 10000 Schmidt number tends to infinity Nusselt number tends to infinity Prandtl number is one Archimedes number is greater than 10000 ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics Which of the following is the most common pump for pumping either raw sewage or sludge? Centrifugal pump Reciprocating pump Gear pump Electromagnetic pump Centrifugal pump Reciprocating pump Gear pump Electromagnetic pump ANSWER DOWNLOAD EXAMIANS APP
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