A.0.1 R
B.0.22 R
C.0.5 R
D.R
Related Mcqs:
- The distance from pipe boundary, at which the point velocity is equal to average velocity in case of turbulent flow (when R is the radius of the pipe), is
- The thickness of laminar boundary layer at a distance x from the leading edge over a flat plate varies as
- The thickness of turbulent boundary layer at a distance x from the leading edge over a flat plate varies as
- Boundary layer thickness (?) is the distance from the surface of the solid body in the direction perpendicular to flow, where the velocity of fluid is equal to
- The Boundary layer on a flat plate is calld laminar boundary layer if
- What should be the thickness of a cast iron pipe 45 cm diameter if it is required to sustain 6 kg/sq cm inside pressure ? The maximum stress in the pipe material being limited to 140 kg/cm2
- A sphere of radius 40 cm is lagged to a radius of 50 cm. The temperatures of outer and inner surfaces are 66?C and 235?C respectively. Thermal conductivity of logging per cm thickness is 0.7 kcal/m-hr?C. The rate of heat leakage will be
- The boundary layer separation takes place if
- Which dimensionless number correlates the relative thickness of the hydrodynamic and thermal boundary layers?
- For which of the following diameters a seam-less pipe of 3 mm wall thickness will be considered as a thin walled cylinder?
