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Water at T = 25° C is drawn from an underground detention tank and discharged into a drain using a 4-m-long pipe and pump (Figure 1). The pipe has a diameter of 100 mm and a friction factor of f = 0.02. The atmospheric pressure is 101.3 kPa. The velocity through the pipe is 4 m/s and h = 3 m. Neglect minor losses. Figure B B D 65% 70% Head (ft) 100 75 2228283 175 6-in. dia. 150 5.5-in. dia. 125 5-in. dia. 75% 80% wo = 1750 rpm -86% 80% A 75% 70% -65%- 25 bhp 20 bhp 50 18 bhp 10 bhp 25 1 of 1 100 200 300 337 400 470 500 600 700 800 Flow Q (gal/min) Determine the required NPSH. Use the pump performance curves shown above. Express your answer using two significant figures. V ΜΕ ΑΣΦ vec (NPSH) re req'd = 5.486 Submit Previous Answers Request Answer × Incorrect; Try Again; 5 attempts remaining ? 3220 B (NPSH) req'd

Water at T = 25° C is drawn from an underground detention tank and discharged into a drain using a 4-m-long pipe and pump (Figure 1). The pipe has a diameter of 100 mm and a friction factor of f = 0.02. The atmospheric pressure is 101.3 kPa. The velocity through the pipe is 4 m/s and h = 3 m. Neglect minor losses. Figure B B D 65% 70% Head (ft) 100 75 2228283 175 6-in. dia. 150 5.5-in. dia. 125 5-in. dia. 75% 80% wo = 1750 rpm -86% 80% A 75% 70% -65%- 25 bhp 20 bhp 50 18 bhp 10 bhp 25 1 of 1 100 200 300 337 400 470 500 600 700 800 Flow Q (gal/min) Determine the required NPSH. Use the pump performance curves shown above. Express your answer using two significant figures. V ΜΕ ΑΣΦ vec (NPSH) re req'd = 5.486 Submit Previous Answers Request Answer × Incorrect; Try Again; 5 attempts remaining ? 3220 B (NPSH) req'd

Fundamentals of Geotechnical Engineering (MindTap Course List)
Fundamentals of Geotechnical Engineering (MindTap Course List)
5th Edition
ISBN:9781305635180
Author:Braja M. Das, Nagaratnam Sivakugan
Publisher:Braja M. Das, Nagaratnam Sivakugan
Chapter6: Hydraulic Conductivity
Section: Chapter Questions
Problem 6.14P
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Water at T = 25° C is drawn from an underground detention tank and discharged into a drain using a 4-m-long pipe and pump (Figure 1). The pipe has a diameter of 100 mm and a friction factor of f = 0.02. The atmospheric pressure is 101.3 kPa. The velocity through the pipe is 4 m/s and h = 3 m. Neglect minor losses. Figure B B D 65% 70% Head (ft) 100 75 2228283 175 6-in. dia. 150 5.5-in. dia. 125 5-in. dia. 75% 80% wo = 1750 rpm -86% 80% A 75% 70% -65%- 25 bhp 20 bhp 50 18 bhp 10 bhp 25 1 of 1 100 200 300 337 400 470 500 600 700 800 Flow Q (gal/min) Determine the required NPSH. Use the pump performance curves shown above. Express your answer using two significant figures. V ΜΕ ΑΣΦ vec (NPSH) re req'd = 5.486 Submit Previous Answers Request Answer × Incorrect; Try Again; 5 attempts remaining ? 3220 B (NPSH) req'd
Transcribed Image Text:Water at T = 25° C is drawn from an underground detention tank and discharged into a drain using a 4-m-long pipe and pump (Figure 1). The pipe has a diameter of 100 mm and a friction factor of f = 0.02. The atmospheric pressure is 101.3 kPa. The velocity through the pipe is 4 m/s and h = 3 m. Neglect minor losses. Figure B B D 65% 70% Head (ft) 100 75 2228283 175 6-in. dia. 150 5.5-in. dia. 125 5-in. dia. 75% 80% wo = 1750 rpm -86% 80% A 75% 70% -65%- 25 bhp 20 bhp 50 18 bhp 10 bhp 25 1 of 1 100 200 300 337 400 470 500 600 700 800 Flow Q (gal/min) Determine the required NPSH. Use the pump performance curves shown above. Express your answer using two significant figures. V ΜΕ ΑΣΦ vec (NPSH) re req'd = 5.486 Submit Previous Answers Request Answer × Incorrect; Try Again; 5 attempts remaining ? 3220 B (NPSH) req'd
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