Fluid Mechanics The ratio of inertial forces to viscous forces is called the __________ number. Mach Weber Froude Reynold Mach Weber Froude Reynold ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics A venturimeter can not be used for the direct measurement of Friction loss in pipe flow Datum difference in the stretch of pipeflow All of these Pressure difference in the flow throughpipeline Friction loss in pipe flow Datum difference in the stretch of pipeflow All of these Pressure difference in the flow throughpipeline ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics The pressure drop per unit length of pipe incurred by a fluid 'X' flowing through pipe is Δp. If another fluid 'Y' having both the specific gravity & density just double of that of fluid 'X', flows through the same pipe at the same flow rate/average velocity, then the pressure drop in this case will be Δp² Δp/2 2Δp Δp Δp² Δp/2 2Δp Δp ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics The Prandtl mixing length is Useful for computing laminar flow problems Zero at the pipe wall and is a universal constant Independent of the shear stress Independent of radial distance from the pipe axis Useful for computing laminar flow problems Zero at the pipe wall and is a universal constant Independent of the shear stress Independent of radial distance from the pipe axis ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics Boundary layer thickness in turbulent flow over a flat plate increases as(where, d = distance from the leading edge.) d1/3 d4/5 d2/3 √d d1/3 d4/5 d2/3 √d ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics Steady fluid flow occurs, when the derivative of flow variables satisfy the following condition. ∂/∂t = 0 ∂/∂s = 0 ∂/∂t = constant ∂/∂s = constant ∂/∂t = 0 ∂/∂s = 0 ∂/∂t = constant ∂/∂s = constant ANSWER DOWNLOAD EXAMIANS APP
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