Creeping flow around a sphere is defined, when particle Reynolds number is___________________?

A. The length of entrance region of pipe, in which full development of fluid flow takes place
such that velocity profile does not change downstream, is called the transition length
B. Transition length for laminar flow of Newtonian fluids in a pipe of diameter ‘d’ is equal to
0.05. D.NRe
C. Transition length for turbulent flow of Newtonian fluids in a smooth pipe of diameter ‘d’ is
equal to 50 D
D. All A., B. and C.

A. Speed of
B. Diameter of
C. Fluid velocity leaving
D. All A., B. and C.

A. Vacuum pumps
B. Blowers
C. Fans
D. Compressors

A. Static submergence
B. Net positive suction head (NPSH)
C. Cavitation sensitivity
D. Priming

A. V/Vmax = (x/r)1/7
B. V/Vmax = (r/x)1/7
C. V/Vmax = (x.r)1/7
D. None of these

A. Screw
B. Reciprocating
C. Gear
D. Centrifugal