ABC Exam Topics per Grade Level
Grade 1 and 1A Certification Examination
| Topics | Grade 1 Exam # of Questions |
Grade 1A Exam # of Questions |
|---|---|---|
| Activated Sludge | 0 | 9 |
| Activated Sludge Calculation | 0 | 1 |
| Aerobic Digestion | 2 | 2 |
| Blowers & Compressors | 3 | 3 |
| CCC & Backflow | 2 | 2 |
| Chemical Feeders | 1 | 1 |
| Chemical Feeders Calculation | 1 | 1 |
| Clarification | 4 | 3 |
| Clarification Calculation | 3 | 3 |
| Compliance | 1 | 1 |
| Disinfection | 10 | 9 |
| Disinfection Calculation | 3 | 2 |
| Electrical Controls | 1 | 1 |
| Electricity | 1 | 1 |
| Finances | 1 | 1 |
| Finances Calculation | 1 | 1 |
| Flow Equalization | 1 | 1 |
| Flow Measurement Calculation | 2 | 2 |
| General Safety | 12 | 10 |
| Grit Removal | 1 | 0 |
| Hydraulics | 1 | 1 |
| Hydraulics Calculation | 1 | 1 |
| Laboratory | 6 | 6 |
| Laboratory Calculation | 1 | 1 |
| Maintenance Management | 2 | 1 |
| Math | 5 | 4 |
| Measuring & Control | 1 | 1 |
| Public Relations | 1 | 1 |
| Pumps | 8 | 7 |
| Safety Administration | 3 | 3 |
| Science | 2 | 2 |
| Screening | 2 | 2 |
| Sludge Drying Beds Calculation | 1 | 1 |
| Sludge Drying Beds | 1 | 1 |
| Sources & Characteristics | 4 | 4 |
| Trickling Filter and RBCs | 5 | 5 |
| Valves | 2 | 1 |
| Waste Stabilization Ponds | 1 | 1 |
| Well Operation Calculation | 1 | 1 |
Grade 2 and 2A Certification Examination
| Topics | Grade 2 Exam # of Questions |
Grade 2A Exam # of Questions |
|---|---|---|
| Activated Sludge | 0 | 10 |
| Blowers & Compressors | 1 | 2 |
| Chemical Feeders Calculation | 1 | 1 |
| Clarification | 3 | 0 |
| Coagulation - Flocculation | 1 | 1 |
| Compliance | 1 | 1 |
| Disinfection | 5 | 5 |
| Disinfection Calculation | 2 | 2 |
| Drives | 3 | 0 |
| Electrical Controls | 2 | 2 |
| Finances | 1 | 1 |
| Finances Calculation | 1 | 1 |
| Flow Measurement Calculation | 2 | 2 |
| General Safety | 7 | 7 |
| Grit Removal | 3 | 3 |
| HVAC | 1 | 1 |
| Hydraulics | 1 | 1 |
| Hydraulics Calculation | 1 | 1 |
| Information | 1 | 1 |
| Laboratory | 9 | 9 |
| Laboratory Calculation | 1 | 1 |
| Maintenance Management | 3 | 3 |
| Measuring & Control | 2 | 2 |
| Microscreens | 2 | 0 |
| Motor Calculation | 1 | 1 |
| Motors | 3 | 2 |
| Personnel | 2 | 2 |
| Pipes | 1 | 1 |
| Public Health | 3 | 3 |
| Pumps | 4 | 0 |
| Pumps Calculation | 2 | 2 |
| Safety Administration | 1 | 1 |
| Science | 4 | 4 |
| Screening | 1 | 1 |
| Sludge Belt Press | 1 | 1 |
| Sludge Centrifuge | 1 | 1 |
| Sludge Conditioning | 1 | 1 |
| Sludge Dewatering | 1 | 1 |
| Sludge Filter Press | 1 | 0 |
| Sludge Thickening | 1 | 1 |
| Sources & Characteristics | 3 | 0 |
| Trickling Filter & RBCs Calculation | 2 | 0 |
| Trickling Filter & RBCs | 10 | 5 |
| Units Calculation | 1 | 1 |
| Valves | 1 | 1 |
Grade 3 and 3A Certification Examination
| Topics | Grade 3 Exam # of Questions |
Grade 3A Exam # of Questions |
|---|---|---|
| Activated Sludge | 0 | 11 |
| Activated Sludge Calculation | 0 | 1 |
| Adsorption | 1 | 0 |
| Aerobic Digestion | 1 | 1 |
| Anaerobic Digestion | 3 | 3 |
| Blowers & Compressors | 1 | 1 |
| Chemical Feeders | 1 | 1 |
| Chemical Feeders Calculation | 3 | 2 |
| Clarification | 3 | 2 |
| Coagulation - Flocculation | 3 | 2 |
| Compliance | 2 | 2 |
| Disinfection | 5 | 4 |
| Disinfection Calculation | 2 | 1 |
| Drives | 1 | 1 |
| Effluent Discharge Calculation | 1 | 1 |
| Electrical Controls | 2 | 2 |
| Filtration | 3 | 2 |
| Filtration Calculation | 3 | 2 |
| Finances | 2 | 2 |
| General Safety | 8 | 8 |
| Grit Removal | 1 | 1 |
| Hydraulics | 1 | 1 |
| Hydraulics Calculation | 2 | 2 |
| Information | 2 | 2 |
| Laboratory | 5 | 5 |
| Laboratory Calculation | 1 | 1 |
| Maintenance Management | 2 | 2 |
| Measuring & Control | 2 | 2 |
| Microscreens | 1 | 1 |
| Nitrogen Removal | 1 | 1 |
| Personnel | 5 | 5 |
| Public Health | 1 | 1 |
| Public Relations | 1 | 0 |
| Pumps | 2 | 2 |
| Pumps Calculation | 2 | 2 |
| Safety Administration | 3 | 3 |
| Science | 2 | 2 |
| Screening | 1 | 1 |
| Sludge Belt Press | 2 | 2 |
| Sludge Centrifuge | 1 | 1 |
| Sludge Thickening | 2 | 1 |
| Sludge Thickening Calculation | 2 | 2 |
| Sources & Characteristics | 3 | 3 |
| Sources & Characteristics Calculation | 1 | 1 |
| Trickling Filter & RBCs | 7 | 3 |
| Units of Expression | 1 | 1 |
| Valves | 1 | 1 |
Grade 4 and 4A Certification Examination
| Topics | Grade 4 Exam # of Questions |
Grade 4A Exam # of Questions |
|---|---|---|
| Activated Sludge | 0 | 7 |
| Activated Sludge Calculation | 0 | 2 |
| Aerobic Digestion | 1 | 1 |
| Anaerobic Digestion | 4 | 2 |
| Blowers & Compressors | 2 | 2 |
| Chemical Addition | 2 | 3 |
| Chemical Feeders | 1 | 1 |
| Chemical Feeders Calculation | 2 | 1 |
| Clarification | 3 | 3 |
| Clarification Calculation | 1 | 1 |
| Coagulation - Flocculation | 1 | 1 |
| Compliance | 7 | 7 |
| Disinfection | 3 | 4 |
| Electrical Controls | 2 | 2 |
| Filtration | 2 | 2 |
| Finances | 2 | 2 |
| Finances Calculation | 1 | 1 |
| Fittings | 1 | 1 |
| General Safety | 8 | 8 |
| Grit Removal | 1 | 1 |
| Hydraulics | 1 | 1 |
| Hydraulics Calculation | 1 | 1 |
| Incineration | 1 | 1 |
| Laboratory | 4 | 4 |
| Maintenance Management | 2 | 2 |
| Measuring & Control | 2 | 2 |
| Motor Calculation | 0 | 1 |
| Motor Calculation | 1 | 0 |
| Nitrogen Removal | 0 | 1 |
| Personnel | 9 | 9 |
| Planning | 2 | 2 |
| Planning Calculation | 1 | 1 |
| Public Health | 3 | 3 |
| Public Relations | 2 | 2 |
| Pumps | 6 | 5 |
| Pumps Calculation | 1 | 1 |
| Safety Administration | 0 | 0 |
| Science | 2 | 2 |
| Screening | 1 | 1 |
| Sludge Belt Press | 1 | 1 |
| Sludge Conditioning | 1 | 1 |
| Sludge Dewatering | 1 | 1 |
| Sludge Thickening | 1 | 1 |
| Sources & Characteristics | 3 | 3 |
| Trickling Filter & RBCs Calculation | 2 | 0 |
| Trickling Filter & RBCs | 6 | 1 |
| Valves | 1 | 1 |
