Exam Study Guide: Bar Screen Knowledge

When operators are faced with licensing exams, they sometimes struggle with test anxiety because they don’t understand how to study and prepare for exam questions. Here, we take a look at a sample wastewater treatment licensing exam question and explain the correct answer.Bar screens typically have spacing of about:A.  3 to 4 inches. B.  3/8 to 2 inches. C.  2 to 3 inches. D.  4 to 6 inches.Bar screens are primarily in place to screen non-organic waste debris from the wastewater flow. This includes, paper products, cigarette butts, napkins, condoms and inflow debris such as trash or storm debris that may have infiltrated