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Environmental Engineering - Interview Questions and Answers

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96. The treatment of water with bleaching powder is known as
A. prechlorination
B. super chlorination
C. dechlorination
D. hypochlorination
Explanation:
97. The suitable layout of a distribution system for irregularly growing town is
A. dead end system
B. grid iron system
C. radial system
D. ring system
Explanation:
98. The suitable method for disinfection of swimming pool water is
A. ultra violet rays treatment
B. lime treatment
C. by using potassium permanganate
D. chlorination
Explanation:
99. The percentage of chlorine in fresh bleaching powder is about
A. 10 to 15
B. 20 to 25
C. 30 to 35
D. 40 to 50
Explanation:
100. The maximum discharge of a tube-well is about
A. 5 litres/sec
B. 50 litres/sec
C. 500 litres/sec
D. 1000 litres/see
Explanation:
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