A.1 to 50 ppm
B.50 to 100 ppm
C.100 to 250 ppm
D.250 to 500 ppm
E.500 to 1000 ppm
Related Mcqs:
- The permissible level of HCN in drinking water is
- The maximum permissible turbidity for drinking water
- Out of the following metals the least permissible percentage in drinking water is
- The maximum concentration of lead in drinking water should not exceed.
- In one litre sample of drinking water the coliform organism should not exceed
- A horizontal load of 120 kg/mt is to be carried by a cable suspended between supports at same level and 60 mts apart. If the maximum permissible tension is 36,000 kg the required length of cable is
- Permissible noise level in small conference room is
- A seamless water main 1 metre in diameter is required to carry wter under a head of 100 metres. If the maximum permissible tensile stress in the metal is 500 kg/cm2, the thickness of metal required would be
- Disinfection of drinking water means removal of
- On board ships, the source of drinking water may be
