Computer · Environmental Engineering
IS 10500:2012 के अनुसार पेयजल की विशेषताओं को उनकी संबंधित स्वीकार्य सीमा (Acceptable limit) से सुमेलित कीजिए: 1. कैल्शियम a. 250 mg/l2. क्लोराइड b. 75 mg/l3. फ्लोराइड c. 0.2 mg/l4. मुक्त अवशिष्ट क्लोरीन d. 1.0 mg/l
- 11-b, 2-a, 3-d, 4-c✓
- 21-b, 2-d, 3-a, 4-c
- 31-d, 2-a, 3-b, 4-c
- 41-a, 2-b, 3-d, 4-c
सही उत्तर देखें
1-b, 2-a, 3-d, 4-c
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