Fluid Mechanics The Prandtl mixing length is 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 Useful for computing laminar flow problems Zero at the pipe wall and is a universal constant ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics Steady fluid flow occurs, when the derivative of flow variables satisfy the following condition. ∂/∂t = 0 ∂/∂s = 0 ∂/∂s = constant ∂/∂t = constant ∂/∂t = 0 ∂/∂s = 0 ∂/∂s = constant ∂/∂t = constant ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics A centrifugal pump is used to pump water through a horizontal distance of 150 m, and then raised to an overhead tank 10 m above. The pipe is smooth with an I.D of 50 mm. What head (m of water) must the pump generate at its exit (E) to deliver water at a flow rate of 0.001 m³/s? The Fanning friction factor, f is 0.0062. 11 m 10 m 12 m 20 m 11 m 10 m 12 m 20 m ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics A centrifugal pump used to pump water is used to pump an oil with specific gravity of 0.8 at the same rate. The power consumption will now Data insufficient to predict Increase Remain same Decrease Data insufficient to predict Increase Remain same Decrease ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics The equation given below is called the __________ . f-0.5 = 4.07 loge (NRe√f)-0.6 None of these Fanning equation Von-Karman equation Colebrook formula None of these Fanning equation Von-Karman equation Colebrook formula ANSWER DOWNLOAD EXAMIANS APP
Fluid Mechanics For water, when the pressure increases, the viscosity First decreases, and then increases Decreases Remains constant Also increases First decreases, and then increases Decreases Remains constant Also increases ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS