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Engineering
Civil Engineering
Please answer part a b

Please answer part a b

Structural Analysis
Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Please answer part a b
PROBLEM 14 (a) Assuming a 24-in. steel pipe to be rigid, what pressure occurs when a flow of 20 cfs of oil (SG = 0.85) and Es = 250,000 psi, is stopped suddenly? (b) If the pipeline is 8000 ft long, how much time should be allowed for closing a valve to avoid water hammer? PROBLEM 15 If a 24-in. steel pipe 8000 ft long is designed for a stress of 15,000 psi under a maximum static head of 1085 ft of water, how much will the stress in the walls of the pipe increase when a quick-closing valve stops a flow of 30 cfs? Es = 300,000 psi, Ep - 30 x 10° psi.
Transcribed Image Text:PROBLEM 14 (a) Assuming a 24-in. steel pipe to be rigid, what pressure occurs when a flow of 20 cfs of oil (SG = 0.85) and Es = 250,000 psi, is stopped suddenly? (b) If the pipeline is 8000 ft long, how much time should be allowed for closing a valve to avoid water hammer? PROBLEM 15 If a 24-in. steel pipe 8000 ft long is designed for a stress of 15,000 psi under a maximum static head of 1085 ft of water, how much will the stress in the walls of the pipe increase when a quick-closing valve stops a flow of 30 cfs? Es = 300,000 psi, Ep - 30 x 10° psi.
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