Public Water Supply
CHAPTER 3- J&B
DRIVER/ OPERATOR EXAM
Responsibilities
ACTUAL QUESTIONS AND ANSWERS
{VERIFIED ANSWERS} |WITH COMPLETE
ANSWERS
1. Which valve is used to throttle flow?
Check
Gate
Globe
Pressure Relief
2. Which step in the sample collection process comes before recording the
sample location, conditions, and other information?
Compile the chain of custody form
Prepare evidence containers before entering the exclusion zone
Place the sample in an overpack container and seal it with tamper-
proof tape
Place the sample and chain of custody form in an approved
transport container
3. When must public notification go out following a tier 1 violation?
Within 24 hours
within 2 weeks
Within 30 days
Within 3 months
,4. Which type of valve is an underground gate valve that has a hollow metal
post attached to the valve housing?
Post indicator valve
Post indicator valve assembly
, Outside stem and yoke
Wall post indicator valve
5. Which type of water meter is primarily used in residential settings to
measure water consumption accurately?
Ultrasonic meters
Positive Displacement meters
Electromagnetic meters
Turbine meters
6. A pH reading of 7.0 indicated the water is
acidic
alkaline
neutral
basic
7. What regulatory requirement is associated with fluoride as an Inorganic
Primary Contaminant in drinking water?
A. It has a maximum contaminant level (MCL) that must not be
exceeded
B. It is only monitored annually
C. It is exempt from reporting violations
D. It is classified as a secondary contaminant
8. Chlorine dioxide is generated on-site by the reaction of chlorine with what
chemical?
Oxygen
Sodium Chlorite
, Salt Brine
Carbon
9. If a water system takes two or more Total Coliform (TC) samples per month
and one comes back with TC present, the system must take repeat
samples:
1
4
2
3
10. Which two categories classify fire hydrants based on their design and
operational features?
Pressurized and Non-pressurized
Above-ground and Below-ground
Wet barrel and Dry barrel
Manual and Automatic
11. Other than sulfur dioxide, what chemical can be used for dechlorination?
Bleach
Ferric chloride
Sodium bisulfite
Sodium hydroxide
12. What is the purpose of sodium thiosulfate in coliform sample bottles?
Add nutrients for bacteria growth
Sample preservation
CHAPTER 3- J&B
DRIVER/ OPERATOR EXAM
Responsibilities
ACTUAL QUESTIONS AND ANSWERS
{VERIFIED ANSWERS} |WITH COMPLETE
ANSWERS
1. Which valve is used to throttle flow?
Check
Gate
Globe
Pressure Relief
2. Which step in the sample collection process comes before recording the
sample location, conditions, and other information?
Compile the chain of custody form
Prepare evidence containers before entering the exclusion zone
Place the sample in an overpack container and seal it with tamper-
proof tape
Place the sample and chain of custody form in an approved
transport container
3. When must public notification go out following a tier 1 violation?
Within 24 hours
within 2 weeks
Within 30 days
Within 3 months
,4. Which type of valve is an underground gate valve that has a hollow metal
post attached to the valve housing?
Post indicator valve
Post indicator valve assembly
, Outside stem and yoke
Wall post indicator valve
5. Which type of water meter is primarily used in residential settings to
measure water consumption accurately?
Ultrasonic meters
Positive Displacement meters
Electromagnetic meters
Turbine meters
6. A pH reading of 7.0 indicated the water is
acidic
alkaline
neutral
basic
7. What regulatory requirement is associated with fluoride as an Inorganic
Primary Contaminant in drinking water?
A. It has a maximum contaminant level (MCL) that must not be
exceeded
B. It is only monitored annually
C. It is exempt from reporting violations
D. It is classified as a secondary contaminant
8. Chlorine dioxide is generated on-site by the reaction of chlorine with what
chemical?
Oxygen
Sodium Chlorite
, Salt Brine
Carbon
9. If a water system takes two or more Total Coliform (TC) samples per month
and one comes back with TC present, the system must take repeat
samples:
1
4
2
3
10. Which two categories classify fire hydrants based on their design and
operational features?
Pressurized and Non-pressurized
Above-ground and Below-ground
Wet barrel and Dry barrel
Manual and Automatic
11. Other than sulfur dioxide, what chemical can be used for dechlorination?
Bleach
Ferric chloride
Sodium bisulfite
Sodium hydroxide
12. What is the purpose of sodium thiosulfate in coliform sample bottles?
Add nutrients for bacteria growth
Sample preservation
