TCEQ D Wastewater questions with correct answers

Minimum velocity at average flow in a sanitary sewer should be about ____ft/sec? CORRECT ANSWER-2ft/sec What types of pumps are used? CORRECT ANSWER-Centrifugal Lime controls what? CORRECT ANSWER-pH Good house keeping is important for the operators _______ CORRECT ANSWER-Safety F/M ratio formula represented by: CORRECT ANSWER-Volatile, suspended solids, aeration tank (VSSAT) A chlorine leak is detected by_______ CORRECT ANSWER-Vapor 10% ammonia Main purpose of BOD test: CORRECT ANSWER-Measures the oxygen depleting effect of wastewater on the receiving stream.(WASTEWATER STRENGTH) Facultative bacteria: CORRECT ANSWER-Both aerobic and anaerobic Hydrogen Sulfide (H2S) is? CORRECT ANSWER-Toxic, rotten egg odor, combustible and slightly heavier than air. One cause of infiltration: CORRE