MEP TEST 3 (COSC 325) LATEST EXAM WITH ACTUAL QUESTIONS AND CORRECT VERIFIED ANSWERS

MEP TEST 3 (COSC 325) LATEST EXAM 2025-
2026 WITH ACTUAL QUESTIONS AND
CORRECT VERIFIED ANSWERS
How does zeolite system of water softening work?


Ans: Through the exchange of calcium/magnesium ions from

water with sodium ions




Q: The bottom of a seepage pit should be placed at

least ___ feet above the water table


Ans: 2




Q: PH-value of water is a measure of its:


Ans: Hydrogen ion concentration




Q: What is the maximum allowable quantity of turbidity

units (TU) in potable water?

,Ans: 5




Q: A reciprocating pump consists of:


Ans: A piston and a cylinder




Q: What is an aquifer?


Ans: A geological formation saturated with water, below the

earth's surface




Q: What is meant by oxidation treatment of water?


Ans: Breaking down of organic or chemical pollutants in water

in presence of oxygen.




Q: What are the two different processes of constructing

drilling wells?


Ans: Percussion and rotary

, Q: Groundwater is obtained by digging either deep or

____ wells.


Ans: Shallow




Q: What is the method of determining clarity of water?


Ans: Using light




Q: If water pressure at point of use is higher than that at

the supply point, then a reversal of water flow can occur

in the supply system.


Ans: True




Q: What is defined as hot when it attains a temperature

of:


Ans: 110°F or higher