3. Table below shows the concentration of dissolve oxygen for a BOD test, diluted by 100. Time (days) Diluted sample DO (mg/L) 7.95 1 3.75 3.45 3 2.75 4 2.15 1.8 i. Determine BOD5 Given the deoxygenation rate coefficient of 0.15 day1, determine the ultimate BOD ii. iii. Based on answer from (i), identify class of the water sample based on INWQS guideline and propose suitable usage the water. 2)

3. Table below shows the concentration of dissolve oxygen for a BOD test, diluted by 100. Time (days) Diluted sample DO (mg/L) 7.95 1 3.75 3.45 3 2.75 4 2.15 1.8 i. Determine BOD5 Given the deoxygenation rate coefficient of 0.15 day1, determine the ultimate BOD ii. iii. Based on answer from (i), identify class of the water sample based on INWQS guideline and propose suitable usage the water. 2)

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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