A. Hagen-Poiseuille’s equation
B. Stoke’s law
C. Navier-stokes equation
D. None of these
A. Relative roughness
B. Absolute roughness
C. Friction co-efficient for flows at equal Reynold number
D. All A., B. & C.
A. Disk
B. Skin
C. Form
D. None of these
A. Speed of
B. Diameter of
C. Fluid velocity leaving
D. All A., B. and C.
A. Mechanical energy balance in potential flow
B. Kinetic energy balance in laminar flow
C. Mechanical energy balance in turbulent flow
D. Mechanical energy balance in boundary layer
A. Temperature remains constant
B. Compressibility is greater than zero
C. Density does not change with pressure & temperature
D. Is frictionless
A. Directly as
B. Inversely as square root of
C. Inversely as
D. As square of