The water system in a suburban area consists of old 9-inch pipeline 2,280 ft. long which conveys water from a pump to a reservolr whose water surface as 326 ft. higher than the pump. Water is pumped at the rate of 3.09 cfs. Determine the horsepower saved by replacing the old pipe with a new 12-inch pipe. Assume the values of f as equal to 0.050 and 0.012. respectively, for the old and new pipes. Neglect Losses of head except friction head.

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
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Questions #1

The water system in a suburban area consists of

old 9-inch pipeline 2,280 ft. long which conveys

water from a pump to a reservolr whose water surface

as 326 ft. higher than the pump. Water is pumped at

the rate of 3.09 cfs. Determine the horsepower saved

by replacing the old pipe with a new 12-inch pipe.

Assume the values of f as equal to 0.050 and 0.012.

respectively, for the old and new pipes. Neglect

Losses of head except friction head.

 

A. 38.17

B. 42.89

C. 50.27

D. 54.56

 

Questions #2

A new cast iron pipe must carry 3.945 mm/s at a head loss of 9.8 m per 4 km length of pipe. Compute the diameter of the pipe in m using Darcy Weishback Formula with f = 0.038.

 

A. 1.98

B. 2.062

C. 1.744

D. 1.819

 

Figure Questions #1
Pump
-water
surface
Datum
Transcribed Image Text:Figure Questions #1 Pump -water surface Datum
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