A. V1.8
B. V-0.8
C. V
D. V-1
A. Shear stress over the cross-section is proportional to the distance from the surface of the pipe
B. Surface of velocity distribution is a paraboloid of revolution, whose volume equals half the
volume of circumscribing cylinder
C. Velocity profile varies hyperbolically and the shear stress remains constant over the crosssection
D. Average flow occurs at a radial distance of 0.5 r from the centre of the pipe (r = pipe radius)
A. 2100
B. 100
C. 0
D. ∞
A. I.D.
B. O.D.
C. Thickness
D. None of these
A. Butterfly valve
B. Globe valve
C. Needle valve
D. None of these
A. FL-1
B. F-1. L
C. F.L-2
D. F-2. L
A. Impeller diameter or speed
B. Number of pumps and joining them in series
C. Number of pumps and joining them in parallel
D. All A., B. and C.