DRIVER/OPERATOR STATE TEST ACTUAL
QUESTIONS AND 100% APPROVED
ANSWERS |ALREADY GRADED A+
1. What are the two primary minerals that contribute to water hardness?
calcium and magnesium
chlorine and fluoride
sodium and potassium
iron and manganese
2. If a water supply system experiences frequent pump failures, how might the choice of
pump type impact the overall system performance?
Choosing a pump type that is easy to repair can reduce downtime and
maintenance costs.
Choosing a pump type with higher energy efficiency will solve all issues.
Choosing a pump type that is larger will improve performance regardless of
repairability.
Choosing a pump type that is more complex will enhance the system's
reliability.
3. What is the height in feet that a standpipe must exceed to be classified differently
than ground storage?
100
60
80
50
4. Describe the significance of dead ends in water supply systems and how they relate
to system design.
,Dead ends are irrelevant in water supply systems and do not affect design
choices.
Dead ends are only found in circular designs and do not impact water quality.
Dead ends can lead to stagnation and potential contamination, making tree
and grid designs important for maintaining water quality.
, Dead ends are beneficial for increasing water pressure in systems with tree
designs.
5. Describe the role of a positive displacement meter in water supply systems.
A positive displacement meter measures the volume of water passing
through it by displacing a known volume with each rotation, providing
accurate readings for billing and monitoring.
A positive displacement meter regulates water pressure in the supply system.
A positive displacement meter is primarily used for storing water in tanks.
A positive displacement meter is used to treat water by removing
contaminants from the supply.
6. Describe the significance of piezometric elevation in the context of water supply
systems.
Piezometric elevation is irrelevant to water pressure requirements.
Piezometric elevation measures the temperature of water in a supply system.
Piezometric elevation indicates the potential energy of water in a system,
reflecting the height of water in a column and its ability to generate
pressure.
Piezometric elevation only applies to wastewater systems.
7. Describe why placing water meters behind the curb and in a meter box is important
for their protection.
It increases the water pressure in the system.
It allows for easier access for maintenance.
It protects the meter from physical damage and environmental factors.
It prevents contamination from surface water.
8. Why is shoring necessary in a 5' deep pipe trench?
Shoring is required for aesthetic purposes in construction.
Shoring helps to reduce the cost of trenching.
Shoring is necessary to prevent trench collapse and ensure worker safety.
, Shoring is used to improve water flow in the trench.
9. How often does the AWWA recommend that water systems check the accuracy of 5/8
inch meters?
Every 10-15 years
Every 5-10 years
Every year
Every 3 years
10. Is a standpipe required in an existing building?
The code has not retroactive provisions.
Yes, when the highest occupied floor level is over 50 feet in height above
the FD access roadway.
No, because of the 'grandfather clause.'
Both a and c are correct.
11. Most common water meters for residential and small commercial properties.
Positive Displacement Meter
Electromagnetic Flow Meter
Turbine Flow Meter
Velocity Meter
12. In a scenario where a water supply system experiences a main break, how would a
looped distribution system benefit the overall water supply?
It reduces the overall water pressure in the system.
It increases the risk of contamination.
It allows for alternative routes to maintain water pressure and supply.
It causes a complete shutdown of the system.
13. Baffling inside a storage facility may be needed to prevent "hot spots" and
long contact times with disinfectants
QUESTIONS AND 100% APPROVED
ANSWERS |ALREADY GRADED A+
1. What are the two primary minerals that contribute to water hardness?
calcium and magnesium
chlorine and fluoride
sodium and potassium
iron and manganese
2. If a water supply system experiences frequent pump failures, how might the choice of
pump type impact the overall system performance?
Choosing a pump type that is easy to repair can reduce downtime and
maintenance costs.
Choosing a pump type with higher energy efficiency will solve all issues.
Choosing a pump type that is larger will improve performance regardless of
repairability.
Choosing a pump type that is more complex will enhance the system's
reliability.
3. What is the height in feet that a standpipe must exceed to be classified differently
than ground storage?
100
60
80
50
4. Describe the significance of dead ends in water supply systems and how they relate
to system design.
,Dead ends are irrelevant in water supply systems and do not affect design
choices.
Dead ends are only found in circular designs and do not impact water quality.
Dead ends can lead to stagnation and potential contamination, making tree
and grid designs important for maintaining water quality.
, Dead ends are beneficial for increasing water pressure in systems with tree
designs.
5. Describe the role of a positive displacement meter in water supply systems.
A positive displacement meter measures the volume of water passing
through it by displacing a known volume with each rotation, providing
accurate readings for billing and monitoring.
A positive displacement meter regulates water pressure in the supply system.
A positive displacement meter is primarily used for storing water in tanks.
A positive displacement meter is used to treat water by removing
contaminants from the supply.
6. Describe the significance of piezometric elevation in the context of water supply
systems.
Piezometric elevation is irrelevant to water pressure requirements.
Piezometric elevation measures the temperature of water in a supply system.
Piezometric elevation indicates the potential energy of water in a system,
reflecting the height of water in a column and its ability to generate
pressure.
Piezometric elevation only applies to wastewater systems.
7. Describe why placing water meters behind the curb and in a meter box is important
for their protection.
It increases the water pressure in the system.
It allows for easier access for maintenance.
It protects the meter from physical damage and environmental factors.
It prevents contamination from surface water.
8. Why is shoring necessary in a 5' deep pipe trench?
Shoring is required for aesthetic purposes in construction.
Shoring helps to reduce the cost of trenching.
Shoring is necessary to prevent trench collapse and ensure worker safety.
, Shoring is used to improve water flow in the trench.
9. How often does the AWWA recommend that water systems check the accuracy of 5/8
inch meters?
Every 10-15 years
Every 5-10 years
Every year
Every 3 years
10. Is a standpipe required in an existing building?
The code has not retroactive provisions.
Yes, when the highest occupied floor level is over 50 feet in height above
the FD access roadway.
No, because of the 'grandfather clause.'
Both a and c are correct.
11. Most common water meters for residential and small commercial properties.
Positive Displacement Meter
Electromagnetic Flow Meter
Turbine Flow Meter
Velocity Meter
12. In a scenario where a water supply system experiences a main break, how would a
looped distribution system benefit the overall water supply?
It reduces the overall water pressure in the system.
It increases the risk of contamination.
It allows for alternative routes to maintain water pressure and supply.
It causes a complete shutdown of the system.
13. Baffling inside a storage facility may be needed to prevent "hot spots" and
long contact times with disinfectants
