1
Which of the following is the physical monitoring of the lake?
Answer: Turbidity
Questions
2
Conductivity comes under the ___________ monitoring of the lake.
Answer: Physical
3
The central pollution control board and the department of ocean and environment has established __________ stations over the entire coastal line of the country.
Answer: 174
6
A large amount of soil can move with the run off called ___________
Answer: Soil erosion
8
____________ comes under the chemical monitoring of the lake.
Answer: Detergents
9
Monitoring systems can be carried out by using __________
Answer: Automatic motors
10
The water temperature should preferably be less than __ degree Celsius.
Answer: 25
11
A technique used to determine the concentration of odour compounds in a sample is known as
Answer: Stripping
14
Step of sewage water treatment in which there is some aeration and organic material is converted to inorganic materials is called
Answer: Secondary sewage treatment
15
In filtration, the amount of dissolved solids passing through the filters is
Answer: Difference between total solids and suspended solids
16
According to The United States Geological Survey, water having less than 1000 ml/litre of total dissolved solids is
Answer: Fresh water
17
The Total dissolved solids (TDS) can be reduced by the following method
Answer: All of the above
19
Step of sewage water treatment in which sewage is placed in tanks and aerated with large blowers is called
Answer: Activated sludge treatment
20
The following cause alkalinity as well hardness in natural water.
Answer: All of the above
