Fluid Mechanics The hydraulic radius for flow in a rectangular duct of cross-sectional dimension H, W is 2HW/(H + W)² √(HW/π) HW/4(H + W)² HW/2(H + W)² 2HW/(H + W)² √(HW/π) HW/4(H + W)² HW/2(H + W)² ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics The bulk modulus of elasticity of a liquid Is independent of temperature & pressure Is zero for incompressible liquid Decreases with pressure Increases with pressure Is independent of temperature & pressure Is zero for incompressible liquid Decreases with pressure Increases with pressure ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics For laminar flow through a closed conduit Vmax = 2Vav Vmax = Vav Vmax = 1.5Vav Vmax = 0.5Vav Vmax = 2Vav Vmax = Vav Vmax = 1.5Vav Vmax = 0.5Vav ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics The most economical flow control valve for use with large diameter pipes is a Needle valve Globe valve Butterfly valve None of these Needle valve Globe valve Butterfly valve None of these ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics The hydrodynamic and thermal boundary layers will merge, when Archimedes number is greater than 10000 Nusselt number tends to infinity Schmidt number tends to infinity Prandtl number is one Archimedes number is greater than 10000 Nusselt number tends to infinity Schmidt number tends to infinity Prandtl number is one ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics Select the wrong statement pertaining to flow of an incompressible fluid through a venturimeter. For frictionless flow, the fluid pressure entering the venturi meter will be exactly equal to that leaving the venturimeter Venturimeter occupies less space than an orificemeter Venturimeter incurs less power loss compared to an equivalent orificemeter Discharge of fluid through a venturimeter depends upon the gage difference irrespective of the orientation of venturimeter For frictionless flow, the fluid pressure entering the venturi meter will be exactly equal to that leaving the venturimeter Venturimeter occupies less space than an orificemeter Venturimeter incurs less power loss compared to an equivalent orificemeter Discharge of fluid through a venturimeter depends upon the gage difference irrespective of the orientation of venturimeter ANSWER DOWNLOAD EXAMIANS APP
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