Then pressure at the exit of the contraction will be very nearly.

Question

Water flows through a vertical contraction from a pipe of diameter d to another of diameter d/2 (see Figure). The flow velocity at the inlet to the contraction is 2m/s and pressure 200 kN/m². If the height of the contraction measures 2m, then pressure at the exit of the contraction will be very nearly.

    (a) 168 kN/m²                                                           (b) 192 kN/m²

      (c) 150 kN/m²                                                        (d) 174 kN/m²