Question

The water is flowing through a pipe having diameter 22 Cm and 12Cm at sections (1) and (2) respectively. The volumetric flow rate is 0.2m3/s. The section (1) is 8m above datum and section (2) is 5m above datum. If the pressure at section (1) is 40N/Cm2. Find the pressure at section (2). Density of water=1000kg/m3. Select one: O a. 296781.2 N/m2 O b. 286754.9 N/m2 O c. 267212.4 N/m2 O d. 276729.1 N/m2 e. 288667.4 N/m2

Answer 1

4:&m. 22 = 5cm. Giro diameterat Section d, = 22cm dy = 12cm. xolume flow Rato in qve As given va V: 0.2 m/sec. v: A,V, : A2 A y = 5.26 Area of cross section m/sec. Vg = 17.69 m/sec. velocity at Section 02 : * [022] *xy 17 x 10.127** }

apoints on Applying Bernouli's Equation bes the points 08.@. [Imaginary Stream line] + 8? + Za + losses yo [regleted] ag +7 : Pa pa Pa-pl pg V₂² 29 +7-7 5.26 25 (8-8) 2 17.69 2x9.81 : -11.54 m. Ps-P1 = 1000X9.81* (-1.54) = - 113207.4 N/m2 Pe = 40 N/of me - |13 2074 - 40x104. 113207.4 Ps - 286792.6 W/m2 t so Approximated and wer