Question

4 multiple choice 1 point what is one use of service water? eye wash stations in boilers heat removal safety showers 5 multiple choice 1 point why are screens used when pumping lake or river water into a plant? to disinfect incoming water to prevent larger objects from entering the water intake to soften the water to make it potable 6 multiple choice 1 point clarifying and filtering comprise a primary means of treating what condition in screened water? turbidity

Explanation:

Question 4:

Service water is used for non-potable industrial purposes, and heat removal (e.g., cooling systems) is a key industrial application. Eye wash/safety showers use potable water, and boilers require treated feedwater, not service water.

Question 5:

Screens at water intakes act as a physical barrier to catch large debris, branches, or organisms from lakes/rivers, preventing damage to pumps and equipment. Disinfection, softening, and potabilization are done in later water treatment steps.

Question 6:

Turbidity refers to cloudiness from suspended particles. Clarifying and filtering processes are specifically designed to remove these suspended materials, reducing turbidity in screened water.

Answer:

1. Heat removal
2. To prevent larger objects from entering the water intake
3. Turbidity