Question

Remaining Time: 25 minutes, 42 seconds. Question Completion Status: QUESTION 6 22 The pump system in the figure is drawing water from the tank1 and pumping it into the tank2. The pipe diameter and length are 0.1 m and 200 m. Flow velocity and the pipe head loss are 4.9 m/s and 10 m, respectively. The elevation difference between the water tanks is 15 m. Determine the required pump head HP in unit of m. Round to the nearest one decimal place. Tank 1 Tank 2 2.5 QUESTION 7 There is one reservoir filled with water and also connected with one pipe of uniform cross-sectional diameter. Total head at section 1 is 27 m. At section 2. potential head is 3 m, gage pressure is 160 kPa, welocity is 4.5 m/s. Find the major head loss at section 2 in unit of m. Round to the nearest one decimal place.

Answer 1

8:6 Apply besnouli equation b/w A & B. pg PA + VA ² + 2A + Hp = PB + V² + 2B + hy) ug g zg PA = P₂ = 0 {atmospheric} VA = VB = 0 { steady ZA=0 {Datum? CB= 15m. 0 + 0 + 0 + Hp = 0+0 +15+10 Hp = 25m pump Head = 25m 8:-7 (ESTotal head at viction (1) = 27m Al deckon (2) Datum head = 3m. pressure head = 160x107 16:31 m. 103x9.81 velocity head = (4.5)2 2x9.81 () Total hecd= 20-34 m Head loss = 5-E, = 6:66m ã 6.7 m Ans. 1.03 m.

8:-8 Applying beinduli b/w equation @ & P + V² +2, Pq + Ve 2 + 2q + he pg 2g sg zg Pin I PSF347.88 passado P, = 12500 PSF 4830 psf. Vi = Vg. { same diameter? Z=2 { horizontal}, h = P.-Pq 7670 PSF pg pg 76 70 x 47-88 103x9.81 122.79 feet Pop 37.44(m) -