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BASIC PLUMBING 3 COMPOSITION OF WATER - Quiz
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BASIC PLUMBING 3 COMPOSITION OF WATER
1) Which water supply distribution system is suitable for towns growing irregularly?
Radial system
Grid iron system
Circle or ring system
Tree or dead end system
2) Which bicarbonates are the reason for temporary hardness of water?
Sulphates
Calcium and magnesium
Chlorides
Nitrates
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