choose the right answer and please check picture there are answer there Quest 4 The following figure shows a nozzle con

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choose the right answer and please check picture there are
answer there
Quest 4
The following figure shows a nozzle connected to a pipe in which
water is conveyed at a pressure P₁=2.875 bar.
The fluid undergoes a constriction: its section S₁ (disc) of
diameter d₁=20 mm (0.02 m) is reduced to an outlet section S₂ of
diameter d₂=10 mm.
It is assumed that the fluid is perfect and the nozzle is in a
horizontal position.
We give the density of the water ρ =1000 kg /m³ and the outlet
pressure P₂=Patm=1 bar.
Reminder: 1 bar = 10⁵ Pa
Determine the ratio of the two speeds V₂/V₁.

Choose The Right Answer And Please Check Picture There Are Answer There Quest 4 The Following Figure Shows A Nozzle Con 1 (125.65 KiB) Viewed 38 times

For the previous Question 4, by applying Bernoulli's equation,
calculate the flow velocity V2

Choose The Right Answer And Please Check Picture There Are Answer There Quest 4 The Following Figure Shows A Nozzle Con 2 (43.5 KiB) Viewed 38 times

Question 4 (2 points) Hydrostatique et Hydrodynamique : La figure suivante représente une buse connectée à un tuyau dans lequel est acheminée de l'eau à une pression P₁=2,875 bar. Le fluide subit un étranglement : sa section S₁ (disque) de diamètre d₁=20 mm (0.02 m) est réduite à une section de sortie S₂ de diamètre d₂=10 mm. On suppose que le fluide est parfait et la buse est dans une position horizontale. On donne la masse volumique de l'eau p =1000 kg /m³ et la pression de sortie P₂-Patm=1 bar. Rappel: 1 bar = 105 Pa Déterminer le rapport des deux vitesses V₂/V₁. P₂ V₁ Ød₁ (eau) Ød₂ 1 2 4 (S₁) (S₂)

Question 5 (2 points) Pour la Question 4 précédente, en appliquant l'équation de Bernoulli, calculer la vitesse d'écoulement V₂. 5 m/s 10 m/s 15 m/s 20 m/s