Civil Engineering : Environmental Engineering QUESTIONS AND ANSWERS :: part3 : 6 to 10
Following Civil Engineering Multiple choice objective type questions and answers will help you in BSNL JTO, GATE 2024 and IES 2024 examinations :
6.Which of the following chemical compounds can be used for dechlorination of water ? |
| carbon dioxide |
| bleaching powder |
| sulphur dioxide |
| chloramines |
7.The treatment of water with bleaching powder is known as |
| prechlorination |
| super chlorination |
| dechlorination |
| hypochlorination |
8.The suitable layout of a distribution system for irregularly growing town is |
| dead end system |
| grid iron system |
| radial system |
| ring system |
9.The suitable method for disinfection of swimming pool water is |
| ultra violet rays treatment |
| lime treatment |
| by using potassium permanganate |
| chlorination |
10.The percentage of chlorine in fresh bleaching powder is about |
| 10 to 15 |
| 20 to 25 |
| 30 to 35 |
| 40 to 50 |
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