NASSCO MANHOLE ASSESSMENT
CERTIFICATION PROGRAM (MACP)
PRACTICE EXAMINATION QUESTIONS
AND CORRECT ANSWERS (VERIFIED
ANSWERS) PLUS RATIONALES 2026 Q&A
| INSTANT DOWNLOAD PDF
1. What is the primary purpose of the MACP program?
A. Repair pipelines
B. Train welders
C. Standardize manhole inspection and coding
D. Design sewer systems
The MACP program ensures uniform inspection, documentation, and
coding of manhole conditions.
2. Which structure is specifically assessed under MACP?
A. Pipelines
B. Lift stations
C. Manholes
D. Septic tanks
MACP focuses exclusively on manhole inspection and condition
assessment.
3. What does NASSCO stand for?
A. National Sewer Safety Company
B. North American Sanitation Council
C. National Association of Sewer Service Companies
, D. National Assessment Sewer Standards Council
NASSCO is the governing body that developed MACP standards.
4. Which of the following is a structural defect?
A. Odor
B. Debris
C. Cracking
D. Grease
Structural defects affect integrity, such as cracks, fractures, and
deformation.
5. What type of defect is infiltration?
A. Maintenance
B. Operational
C. Structural
D. Administrative
Infiltration indicates structural compromise allowing groundwater entry.
6. What is the purpose of condition grading?
A. Assign cost
B. Track employees
C. Evaluate severity of defects
D. Measure flow
Grading quantifies defect severity for prioritization.
7. What is Grade 5 defect?
A. Minor
B. Moderate
C. Significant
D. Severe/critical
Grade 5 indicates immediate attention is required.
8. What inspection method is commonly used?
A. Thermal scanning
B. Visual inspection
, C. Magnetic testing
D. Ultrasonic testing
MACP primarily uses visual inspection techniques.
9. What is a cone in a manhole?
A. Bottom section
B. Top tapering section
C. Pipe inlet
D. Bench area
The cone narrows toward the cover frame.
10.What is benching?
A. Ladder support
B. Shaped channel at the bottom
C. Wall coating
D. Frame installation
Benching directs flow through the channel.
11.What is a frame and cover?
A. Pump assembly
B. Top access structure
C. Pipe fitting
D. Ladder
Frame and cover provide access to the manhole.
12.What indicates corrosion?
A. Clean surface
B. Surface deterioration
C. Dry walls
D. No odor
Corrosion is material breakdown due to chemical reactions.
13.What is infiltration caused by?
A. Internal pressure
CERTIFICATION PROGRAM (MACP)
PRACTICE EXAMINATION QUESTIONS
AND CORRECT ANSWERS (VERIFIED
ANSWERS) PLUS RATIONALES 2026 Q&A
| INSTANT DOWNLOAD PDF
1. What is the primary purpose of the MACP program?
A. Repair pipelines
B. Train welders
C. Standardize manhole inspection and coding
D. Design sewer systems
The MACP program ensures uniform inspection, documentation, and
coding of manhole conditions.
2. Which structure is specifically assessed under MACP?
A. Pipelines
B. Lift stations
C. Manholes
D. Septic tanks
MACP focuses exclusively on manhole inspection and condition
assessment.
3. What does NASSCO stand for?
A. National Sewer Safety Company
B. North American Sanitation Council
C. National Association of Sewer Service Companies
, D. National Assessment Sewer Standards Council
NASSCO is the governing body that developed MACP standards.
4. Which of the following is a structural defect?
A. Odor
B. Debris
C. Cracking
D. Grease
Structural defects affect integrity, such as cracks, fractures, and
deformation.
5. What type of defect is infiltration?
A. Maintenance
B. Operational
C. Structural
D. Administrative
Infiltration indicates structural compromise allowing groundwater entry.
6. What is the purpose of condition grading?
A. Assign cost
B. Track employees
C. Evaluate severity of defects
D. Measure flow
Grading quantifies defect severity for prioritization.
7. What is Grade 5 defect?
A. Minor
B. Moderate
C. Significant
D. Severe/critical
Grade 5 indicates immediate attention is required.
8. What inspection method is commonly used?
A. Thermal scanning
B. Visual inspection
, C. Magnetic testing
D. Ultrasonic testing
MACP primarily uses visual inspection techniques.
9. What is a cone in a manhole?
A. Bottom section
B. Top tapering section
C. Pipe inlet
D. Bench area
The cone narrows toward the cover frame.
10.What is benching?
A. Ladder support
B. Shaped channel at the bottom
C. Wall coating
D. Frame installation
Benching directs flow through the channel.
11.What is a frame and cover?
A. Pump assembly
B. Top access structure
C. Pipe fitting
D. Ladder
Frame and cover provide access to the manhole.
12.What indicates corrosion?
A. Clean surface
B. Surface deterioration
C. Dry walls
D. No odor
Corrosion is material breakdown due to chemical reactions.
13.What is infiltration caused by?
A. Internal pressure
