a) A 100 mm diameter wrought iron pipe conveys water from a tank with water surface...

 

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a) A 100 mm diameter wrought iron pipe conveys water from a tank with water surface located at 37 m above datum to another tank with water surface located at 34 m above datum. The pipe is 30 m long. Determine the flow rate in the pipe. Do not neglect pipe entrance and exit losses in your solution. State any appropriate assumptions you make, if any. Clearly show all the calculation steps. b) With reference to the problem in Question Q1-a: how would the flow rate change if the gross head (the difference between the water surface elevations in the two tanks) increased? • the pipe roughness was larger? For each of the two alternative scenarios described, state briefly how the flow rate would change (that is, increase or decrease) and why. Discuss qualitatively (no computations needed). Your answer for Question Q1-b must not exceed 150 words. c) A hydraulic engineer is designing a pumped system with a single pump and a pipe conveying water from a lower tank to a higher tank. At operation point (intersection of pump characteristic curve and pipe characteristic curve) the discharge conveyed is less than desired. List three modifications to increase the discharge that the engineer could implement in the system and provide a justification for each of them. Your answer for Question Q1-c must not exceed 150 words. No computations are needed. d) Concisely explain the difference between combined and separate sewer systems and state one advantage and one disadvantage for each. Your answer for Question Q1-d must not exceed 100 words. a) A 100 mm diameter wrought iron pipe conveys water from a tank with water surface located at 37 m above datum to another tank with water surface located at 34 m above datum. The pipe is 30 m long. Determine the flow rate in the pipe. Do not neglect pipe entrance and exit losses in your solution. State any appropriate assumptions you make, if any. Clearly show all the calculation steps. b) With reference to the problem in Question Q1-a: how would the flow rate change if the gross head (the difference between the water surface elevations in the two tanks) increased? • the pipe roughness was larger? For each of the two alternative scenarios described, state briefly how the flow rate would change (that is, increase or decrease) and why. Discuss qualitatively (no computations needed). Your answer for Question Q1-b must not exceed 150 words. c) A hydraulic engineer is designing a pumped system with a single pump and a pipe conveying water from a lower tank to a higher tank. At operation point (intersection of pump characteristic curve and pipe characteristic curve) the discharge conveyed is less than desired. List three modifications to increase the discharge that the engineer could implement in the system and provide a justification for each of them. Your answer for Question Q1-c must not exceed 150 words. No computations are needed. d) Concisely explain the difference between combined and separate sewer systems and state one advantage and one disadvantage for each. Your answer for Question Q1-d must not exceed 100 words.

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a Assumptions The pipe is horizontal The pipe is completely filled with water The flow is steady and ... View the full answer