Reference no: EM133436424
Question
1. About the municipal sewer system, which of the following statements is correct?
a. Both combined and separate sewers accept stormwater
b. Combined sewers can potentially reduce the cost on wastewater treatment
c. Separate sewers prevent wastewater from bypassing the treatment plant
All (a), (b), and (c) are correct
2. Which of the following statement is Not True about water velocity measurement in a stream?
It is used to compute the stream discharge
It can be done by wading into the stream
Average velocity can be measured at any location in the stream
Velocity decreases from top to bottom in the stream
3. Which of the following is a wastewater preliminary treatment process?
Sedimentation
Screening
Activated sludge
Aeration
4. Which of the following processes is NOT used for drinking water treatment?
Flocculation
Biological Treatment
Disinfection
Sedimentation
5. Which of the following property of lake water does NOT stratify along the lake depth?
Water velocity
Water density
Water temperature
Water heat capacity