Wastewater Treatment Operator Certification Test #1 Questions and Answers (Graded A)

Wastewater Treatment Operator Certification Test #1 Questions and Answers (Graded A)Wastewater Treatment Operator Certification Test #1 Questions and Answers (Graded A)Wastewater Treatment Operator Certification Test #1 Questions and Answers (Graded A)Wastewater Treatment Operator Certification Test #1 Questions and Answers (Graded A)Wastewater Treatment Operator Certification Test #1 Questions and Answers (Graded A) What is the methane content in a properly operation anaerobic digester? A) 30 to 35% by volume B) 1 to 2% by volume C) 65 to 70% by volume D) 15 to 20% by volume - ANSWER-C) 65 to 70% by volume (v.2 pg 158) What will the addition of chlorine gas do to the pH of wastewater? A) Moderately increase pH B) pH will not be affected C) Significantly increase the pH D) Decrease the pH - ANSWER-D) Decrease the pH (v.1 pg 349-350) What is the purpose of a Parshall flume? A) measure turbidity