Water
WATERSupply and Treatment
SUPPLY AND TREATMENT EXAM QUESTIONS WITH
Concepts
CORRECT ANSWERS {VERIFIED ANSWERS} |NEWEST UPDATE
|ALREADY GRADED A+
1. In the context of water treatment, what does the acronym THM refer to?
Total Harmful Metals
Trihalomethanes
Toxic Hydrocarbon Mixtures
Thermal Hydration Methods
2. What is a potential risk associated with a cross connection in a water distribution
system?
Backflow of contaminated water into the potable supply
Increased water pressure in the distribution system
Improved water flow rates during peak usage
Enhanced filtration of drinking water
3. When operating a centrifugal pump, what is the acceptable rate of water leakage
from the packing gland that should be monitored daily?
Five drops per minute
Ten drops per minute
Fifteen drops per minute
Twenty drops per minute
4. What is the primary function of a float valve in a water storage system?
To control the flow of water into the tank based on the water level
To measure the temperature of the water
To filter impurities from the water
To increase the pressure in the distribution system
,5. What is the term for a device that quantifies the volume of water passing through a
pipe in a water distribution system?
, Flow gauge
Water meter
Pressure sensor
Hydraulic calculator
6. What is the primary function of the drain hole in a fire hydrant?
Allow water to flow out during maintenance
Facilitate drainage to prevent freezing
Provide access for inspection
Serve as a connection point for hoses
7. What is the recommended procedure for closing a hydrant to minimize water hammer
effects in the distribution system?
Closed quickly to prevent backflow
Closed slowly to reduce surges
Left open for a few minutes
Closed immediately after use
8. What is a common consequence of a water meter experiencing wear and tear over
time?
Over registers the amount of water delivered
Under registers the amount of water delivered
Maintains accurate readings
Increases flow resistance
9. What is the maximum amount of chlorine gas that can be safely extracted from a 100
lb chlorine cylinder in a 24-hour period at standard operating conditions?
20 lbs
30 lbs
50 lbs
70 lbs
WATERSupply and Treatment
SUPPLY AND TREATMENT EXAM QUESTIONS WITH
Concepts
CORRECT ANSWERS {VERIFIED ANSWERS} |NEWEST UPDATE
|ALREADY GRADED A+
1. In the context of water treatment, what does the acronym THM refer to?
Total Harmful Metals
Trihalomethanes
Toxic Hydrocarbon Mixtures
Thermal Hydration Methods
2. What is a potential risk associated with a cross connection in a water distribution
system?
Backflow of contaminated water into the potable supply
Increased water pressure in the distribution system
Improved water flow rates during peak usage
Enhanced filtration of drinking water
3. When operating a centrifugal pump, what is the acceptable rate of water leakage
from the packing gland that should be monitored daily?
Five drops per minute
Ten drops per minute
Fifteen drops per minute
Twenty drops per minute
4. What is the primary function of a float valve in a water storage system?
To control the flow of water into the tank based on the water level
To measure the temperature of the water
To filter impurities from the water
To increase the pressure in the distribution system
,5. What is the term for a device that quantifies the volume of water passing through a
pipe in a water distribution system?
, Flow gauge
Water meter
Pressure sensor
Hydraulic calculator
6. What is the primary function of the drain hole in a fire hydrant?
Allow water to flow out during maintenance
Facilitate drainage to prevent freezing
Provide access for inspection
Serve as a connection point for hoses
7. What is the recommended procedure for closing a hydrant to minimize water hammer
effects in the distribution system?
Closed quickly to prevent backflow
Closed slowly to reduce surges
Left open for a few minutes
Closed immediately after use
8. What is a common consequence of a water meter experiencing wear and tear over
time?
Over registers the amount of water delivered
Under registers the amount of water delivered
Maintains accurate readings
Increases flow resistance
9. What is the maximum amount of chlorine gas that can be safely extracted from a 100
lb chlorine cylinder in a 24-hour period at standard operating conditions?
20 lbs
30 lbs
50 lbs
70 lbs
