Entry-Level Wastewater Collections
A complete entry-level collection systems course covering gravity sewers and manholes, lift stations and force mains, cleaning and CCTV inspection, odor and corrosion control, infiltration and inflow, overflow reporting, and the safety rules that govern collection work.
1
Practice questions
50
Exam questions
90 min
Timed exam
0
Math drill types
Exam outline and weighting
Passing score for this exam is 70%. Topic weights below match how the exam distributes its questions.
Collection System Regulations
15% of exam · 0 questionsClean Water Act, NPDES, SSO and overflow reporting, operator certification.
Gravity Sewers & Manholes
22% of exam · 1 questionsPipe materials, slope and velocity, manhole components, blockages and root control.
Lift Stations & Force Mains
20% of exam · 0 questionsWet wells, pumps and controls, force main operation, air release, and alarms.
Cleaning, Inspection & Rehab
15% of exam · 0 questionsJetting, rodding, bucket machines, CCTV and smoke testing, lining and repairs.
I&I, Odor & Corrosion
13% of exam · 0 questionsInfiltration and inflow sources, hydrogen sulfide, crown corrosion, odor control.
Collections Safety
15% of exam · 0 questionsConfined space entry, atmospheric hazards, traffic control, pathogens, and LOTO.
Sample questions
A taste of the bank — answers and explanations included.
Gravity sewers are typically designed for a minimum velocity of about 2 ft/s in order to: