McqMate
Q. |
The maximum permissible fluorine content in water for domestic supplies should be |
A. | 0.15 ppm |
B. | 1.5 ppm |
C. | 15 ppm |
D. | 150 ppm |
Answer» B. 1.5 ppm |
View all MCQs in
Public Health EngineeringNo comments yet