Question

7 multiple choice 1 point
what is the term used for the thick mixture formed in pipes and equipment by accumulation of suspended solids?
turbidity
back flush
sludge
flocculation
8 multiple choice 1 point
the process of bringing together coagulated particles to form larger, heavier particles that settle to the bottom or are filtered out of the water is called _____.
anticoagulation
flocculation
filtering
decontamination
9 multiple choice 1 point
what term is used to describe the cloudiness of water with suspended solids?

Explanation:

1. For question 7: Turbidity refers to cloudiness of water, back flush is a cleaning process, flocculation is particle aggregation, while sludge is the thick suspended solid buildup in pipes/equipment.
2. For question 8: Anticoagulation prevents particle clumping, filtering removes particles, decontamination removes contaminants, while flocculation is the process of combining coagulated particles into larger, settleable masses.
3. For question 9 (incomplete options inferred from standard terminology): Turbidity is the specific term for the cloudiness of water caused by suspended solids.

Answer:

1. C. Sludge
2. B. flocculation
3. Turbidity (standard term for the described phenomenon)