NASSCO Manhole Assessment Certification
Program (MACP) Exam Questions And Correct
Answers (Verified Answers) Plus Rationales
2026 Q&A | Instant Download Pdf
1. The primary purpose of the MACP is to standardize the
assessment of manholes used in wastewater and stormwater
systems.
A. To establish construction standards
B. To provide a uniform inspection and grading methodology
C. To regulate contractor licensing
D. To design new manhole systems
Answer: B
Rationale: MACP focuses on consistent inspection, defect coding,
and grading of existing manholes.
2. MACP inspections are typically performed on which structures?
A. Pump stations only
B. Gravity pipelines only
C. Manholes and related access structures
D. Treatment plant tanks
Answer: C
Rationale: MACP is specifically designed for manholes and similar
access structures.
3. Which organization developed the MACP standard?
A. EPA
B. ASTM
C. NASSCO
, D. AWWA
Answer: C
Rationale: The Manhole Assessment Certification Program is a
NASSCO-developed standard.
4. A Level 1 MACP inspection is best described as:
A. A detailed internal inspection
B. A structural engineering analysis
C. A rapid overview inspection
D. A post-rehabilitation inspection
Answer: C
Rationale: Level 1 inspections provide a quick overview to identify
obvious issues.
5. A Level 2 MACP inspection requires:
A. Excavation of the manhole
B. Entry into the manhole or detailed internal observation
C. Only surface observations
D. Chemical testing
Answer: B
Rationale: Level 2 inspections involve more detailed internal
assessment.
6. Which safety practice is essential before entering a manhole for
inspection?
A. Visual-only inspection
B. Confined space safety procedures
C. Traffic control removal
D. Pipe bypass installation
Answer: B
Rationale: Manholes are confined spaces and require strict safety
protocols.
, 7. The MACP defect coding system primarily categorizes defects into
which main groups?
A. Operational and financial
B. Structural, O&M, and Construction
C. Hydraulic and electrical
D. Chemical and biological
Answer: B
Rationale: MACP uses these three primary defect categories.
8. Which defect category addresses issues like corrosion and
cracking?
A. O&M
B. Construction
C. Structural
D. Environmental
Answer: C
Rationale: Structural defects relate to the integrity of the
manhole.
9. Which defect would be classified as an O&M defect?
A. Broken barrel
B. Missing steps
C. Severe wall collapse
D. Offset rings
Answer: B
Rationale: Missing steps affect operation and maintenance access.
10. In MACP, infiltration refers to:
A. Surface water entering the system
B. Groundwater entering the manhole
C. Wastewater leaving the system
D. Air entering through vents
Program (MACP) Exam Questions And Correct
Answers (Verified Answers) Plus Rationales
2026 Q&A | Instant Download Pdf
1. The primary purpose of the MACP is to standardize the
assessment of manholes used in wastewater and stormwater
systems.
A. To establish construction standards
B. To provide a uniform inspection and grading methodology
C. To regulate contractor licensing
D. To design new manhole systems
Answer: B
Rationale: MACP focuses on consistent inspection, defect coding,
and grading of existing manholes.
2. MACP inspections are typically performed on which structures?
A. Pump stations only
B. Gravity pipelines only
C. Manholes and related access structures
D. Treatment plant tanks
Answer: C
Rationale: MACP is specifically designed for manholes and similar
access structures.
3. Which organization developed the MACP standard?
A. EPA
B. ASTM
C. NASSCO
, D. AWWA
Answer: C
Rationale: The Manhole Assessment Certification Program is a
NASSCO-developed standard.
4. A Level 1 MACP inspection is best described as:
A. A detailed internal inspection
B. A structural engineering analysis
C. A rapid overview inspection
D. A post-rehabilitation inspection
Answer: C
Rationale: Level 1 inspections provide a quick overview to identify
obvious issues.
5. A Level 2 MACP inspection requires:
A. Excavation of the manhole
B. Entry into the manhole or detailed internal observation
C. Only surface observations
D. Chemical testing
Answer: B
Rationale: Level 2 inspections involve more detailed internal
assessment.
6. Which safety practice is essential before entering a manhole for
inspection?
A. Visual-only inspection
B. Confined space safety procedures
C. Traffic control removal
D. Pipe bypass installation
Answer: B
Rationale: Manholes are confined spaces and require strict safety
protocols.
, 7. The MACP defect coding system primarily categorizes defects into
which main groups?
A. Operational and financial
B. Structural, O&M, and Construction
C. Hydraulic and electrical
D. Chemical and biological
Answer: B
Rationale: MACP uses these three primary defect categories.
8. Which defect category addresses issues like corrosion and
cracking?
A. O&M
B. Construction
C. Structural
D. Environmental
Answer: C
Rationale: Structural defects relate to the integrity of the
manhole.
9. Which defect would be classified as an O&M defect?
A. Broken barrel
B. Missing steps
C. Severe wall collapse
D. Offset rings
Answer: B
Rationale: Missing steps affect operation and maintenance access.
10. In MACP, infiltration refers to:
A. Surface water entering the system
B. Groundwater entering the manhole
C. Wastewater leaving the system
D. Air entering through vents
