Which of the following facilitates close control of flow of fluids ?

A. Df + Bf = Wf
B. Df = Bf + Wf
C. Df + Bf + Wf =0
D. None of these

A. Having high viscosities
B. Moving at low velocities
C. Both A. & B.
D. Neither A. nor B.

A. Dilatant
B. Bingham plastic
C. Pseudo plastic
D. None of these

A. 1 × 10-3 to 2 × 10-3 kg/m.s
B. 0.5 × 10-3 to 1 × 10-3 kg/m.s
C. 1 to 2 kg/m.s
D. 0.5 to 1 kg/m.s

A. H
B. H2
C. H3/2
D. H1/2

A. Venturimeter
B. Pitot tube
C. Rotameter
D. None of these