Wastewater Operator certification Study Guide-Grade 2 Exam questions and 100% correct answers 2026

Wastewater Operator certification Study Guide-Grade 2 Exam questions and 100% correct answers 2026 General Wastewater Treatment: What is the pressure head caused by? Water elevation General Wastewater Treatment: What color should the piping be that contains reclaimed water? purple General Wastewater Treatment: What is the term for the height to which a column of water will rise in a well. piezometric surface General Wastewater Treatment: In general, what is the maximum practical lift of pumps 15-25ft General Wastewater Treatment: Which one of the following valves is the best to use in throttling a flow situation? a. gate b. butterfly c. globe d. ball globe General Wastewater Treatment: Which one of the following devices is used to measure water depths in storage facilities? a. transducer b. Venturi meter c. magnetic sensor d. thermistor transducer Wastewater Treatment Facilities: The velocity in sanitary sewers is approximately: 2 ft/s Wastewater Treatment Facilities: The distance between manholes ranges from 300-500ft Wastewater Treatment Facilities: What should the flow velocity be through a grit channel 1.0 ft/s Wastewater Treatment Facilities: Grit washers are used to______ a. remove some of the organic matter b. remove large pieces of wood c. remove rags and eggshells d. remove the odors remove some of the organic matter Wastewater Treatment Facilities: The most common flow-measure device for wastewater is a_____