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Civil Engineering Mcqs — Test 44

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Question 1
Which of the following compounds is widely used for algae control ?
Question 2
In lime-soda process________________?
Question 3
As compared to higher pH values, the contact period required for efficient chlorination at lower pH values is___________________?
Question 4
Which of the following chemical compounds can be used for dechlorination of water ?
Question 5
The treatment of water with bleaching powder is known as________________?
Question 6
The process in which the chlorination is done beyond the break point is known as_________________?
Question 7
The disinfection efficiency of chlorine increases by_______________?
Question 8
Double filtration is used_______________?
Question 9
Disinfection of water results in______________?
Question 10
Period of cleaning of slow sand filters is about________________?