New Hampshire Septic System Installer Exam
Newest Evaluated Exam Practice 100
Questions |Original Questions & Answers
|Detailed Rationales |Hinted Complete Exam
Prep Graded A+*Instant Download Pdf*
1. What must an individual obtain before engaging in the business of installing subsurface
sewage or waste disposal systems in New Hampshire?
A. A plumbing apprentice card
B. An installer's permit
C. A building occupancy certificate
D. A wastewater operator certificate
Correct Answer: B. An installer's permit
Rationale: New Hampshire RSA 485-A:36 requires an installer’s permit before engaging in the
business of installing subsurface sewage or waste disposal systems.
Exam Hint: Remember installer = installer’s permit.
2. Who is responsible for installing a subsurface sewage disposal system according to the
approved plan?
A. The property buyer
B. The excavator only
C. The permitted installer
D. The local assessor
Correct Answer: C. The permitted installer
Rationale: The permit holder is responsible for installing the system in strict accordance with
the approved plan. New Hampshire Government
Exam Hint: The installer doesn't simply supervise—the permit holder has responsibility for
compliant installation.
3. Which knowledge is specifically required for an installer permit?
,A. Knowledge of electrical wiring only
B. Knowledge of RSA 485-A:29–35
C. Knowledge of property taxation
D. Knowledge of highway construction
Correct Answer: B. Knowledge of RSA 485-A:29–35
Rationale: RSA 485-A:36 requires applicants to demonstrate a sound working knowledge of RSA
485-A:29–35.
4. An installer must be able to:
A. Prepare a mortgage
B. Read approved waste-disposal plans
C. Perform laboratory microbiology
D. Design municipal water treatment plants
Correct Answer: B. Read approved waste-disposal plans
Rationale: Ability to read approved waste-disposal plans is expressly required for an installer
permit.
5. Which agency administers New Hampshire's individual sewage disposal system
requirements?
A. Department of Transportation
B. Department of Environmental Services
C. Department of Agriculture exclusively
D. Secretary of State
Correct Answer: B. Department of Environmental Services
Rationale: NHDES administers the state's requirements concerning individual sewage disposal
systems.
6. What is a major purpose of the New Hampshire ISDS rules?
A. Increase property taxes
B. Prevent pollution of surface and groundwater
,C. Regulate electrical contractors
D. Regulate road construction
Correct Answer: B. Prevent pollution of surface and groundwater
Rationale: Env-Wq 1000 states that the rules are intended to protect water supplies and
prevent pollution of surface and groundwater, as well as nuisances and potential health hazards.
New Hampshire Government
7. ISDS stands for:
A. Individual Sewage Disposal System
B. Internal Drainage Service Standard
C. Industrial Sewage Distribution System
D. Individual Soil Drainage Survey
Correct Answer: A. Individual Sewage Disposal System
Rationale: ISDS is the standard New Hampshire abbreviation for Individual Sewage Disposal
System.
8. What should an installer do if field conditions differ materially from the approved plan?
A. Ignore the difference
B. Modify the system without documentation
C. Follow applicable NHDES requirements and obtain approval for changes when required
D. Continue construction regardless
Correct Answer: C. Follow applicable NHDES requirements and obtain approval for changes
when required
Rationale: Construction must comply with the approved plan and applicable rules.
Unauthorized deviations can compromise approval and system performance.
Exam Hint: Approved plan controls.
9. A septic system primarily provides treatment and disposal of:
A. Stormwater
B. Domestic wastewater
, C. Drinking water
D. Surface runoff
Correct Answer: B. Domestic wastewater
Rationale: An individual sewage disposal system receives wastewater and provides treatment
and effluent disposal.
10. Which component normally receives wastewater first from a conventional household
septic system?
A. Distribution box
B. Septic tank
C. Effluent disposal area
D. Groundwater table
Correct Answer: B. Septic tank
Rationale: Household wastewater normally flows from the building sewer into the septic tank
before effluent is distributed to the disposal area.
11. What is the primary purpose of a septic tank?
A. Store drinking water
B. Settle solids and provide initial wastewater treatment
C. Pump groundwater
D. Distribute effluent directly into bedrock
Correct Answer: B. Settle solids and provide initial wastewater treatment
Rationale: The septic tank provides detention and separation of solids, scum, and liquid effluent
while anaerobic treatment occurs.
12. The heavier solids that settle in a septic tank form:
A. Scum
B. Sludge
C. Effluent
D. Groundwater
Newest Evaluated Exam Practice 100
Questions |Original Questions & Answers
|Detailed Rationales |Hinted Complete Exam
Prep Graded A+*Instant Download Pdf*
1. What must an individual obtain before engaging in the business of installing subsurface
sewage or waste disposal systems in New Hampshire?
A. A plumbing apprentice card
B. An installer's permit
C. A building occupancy certificate
D. A wastewater operator certificate
Correct Answer: B. An installer's permit
Rationale: New Hampshire RSA 485-A:36 requires an installer’s permit before engaging in the
business of installing subsurface sewage or waste disposal systems.
Exam Hint: Remember installer = installer’s permit.
2. Who is responsible for installing a subsurface sewage disposal system according to the
approved plan?
A. The property buyer
B. The excavator only
C. The permitted installer
D. The local assessor
Correct Answer: C. The permitted installer
Rationale: The permit holder is responsible for installing the system in strict accordance with
the approved plan. New Hampshire Government
Exam Hint: The installer doesn't simply supervise—the permit holder has responsibility for
compliant installation.
3. Which knowledge is specifically required for an installer permit?
,A. Knowledge of electrical wiring only
B. Knowledge of RSA 485-A:29–35
C. Knowledge of property taxation
D. Knowledge of highway construction
Correct Answer: B. Knowledge of RSA 485-A:29–35
Rationale: RSA 485-A:36 requires applicants to demonstrate a sound working knowledge of RSA
485-A:29–35.
4. An installer must be able to:
A. Prepare a mortgage
B. Read approved waste-disposal plans
C. Perform laboratory microbiology
D. Design municipal water treatment plants
Correct Answer: B. Read approved waste-disposal plans
Rationale: Ability to read approved waste-disposal plans is expressly required for an installer
permit.
5. Which agency administers New Hampshire's individual sewage disposal system
requirements?
A. Department of Transportation
B. Department of Environmental Services
C. Department of Agriculture exclusively
D. Secretary of State
Correct Answer: B. Department of Environmental Services
Rationale: NHDES administers the state's requirements concerning individual sewage disposal
systems.
6. What is a major purpose of the New Hampshire ISDS rules?
A. Increase property taxes
B. Prevent pollution of surface and groundwater
,C. Regulate electrical contractors
D. Regulate road construction
Correct Answer: B. Prevent pollution of surface and groundwater
Rationale: Env-Wq 1000 states that the rules are intended to protect water supplies and
prevent pollution of surface and groundwater, as well as nuisances and potential health hazards.
New Hampshire Government
7. ISDS stands for:
A. Individual Sewage Disposal System
B. Internal Drainage Service Standard
C. Industrial Sewage Distribution System
D. Individual Soil Drainage Survey
Correct Answer: A. Individual Sewage Disposal System
Rationale: ISDS is the standard New Hampshire abbreviation for Individual Sewage Disposal
System.
8. What should an installer do if field conditions differ materially from the approved plan?
A. Ignore the difference
B. Modify the system without documentation
C. Follow applicable NHDES requirements and obtain approval for changes when required
D. Continue construction regardless
Correct Answer: C. Follow applicable NHDES requirements and obtain approval for changes
when required
Rationale: Construction must comply with the approved plan and applicable rules.
Unauthorized deviations can compromise approval and system performance.
Exam Hint: Approved plan controls.
9. A septic system primarily provides treatment and disposal of:
A. Stormwater
B. Domestic wastewater
, C. Drinking water
D. Surface runoff
Correct Answer: B. Domestic wastewater
Rationale: An individual sewage disposal system receives wastewater and provides treatment
and effluent disposal.
10. Which component normally receives wastewater first from a conventional household
septic system?
A. Distribution box
B. Septic tank
C. Effluent disposal area
D. Groundwater table
Correct Answer: B. Septic tank
Rationale: Household wastewater normally flows from the building sewer into the septic tank
before effluent is distributed to the disposal area.
11. What is the primary purpose of a septic tank?
A. Store drinking water
B. Settle solids and provide initial wastewater treatment
C. Pump groundwater
D. Distribute effluent directly into bedrock
Correct Answer: B. Settle solids and provide initial wastewater treatment
Rationale: The septic tank provides detention and separation of solids, scum, and liquid effluent
while anaerobic treatment occurs.
12. The heavier solids that settle in a septic tank form:
A. Scum
B. Sludge
C. Effluent
D. Groundwater
