Wastewater Operator correctly answered graded A+ 2023 Graded A+

Wastewater Operator correctly answered graded A+ 2023 Graded A+The recommended flow velocity through a grit channel is how many feet per second - correct answer One A little organic matter in the settled grit usually indicates the proper velocities are being maintained in the grit channel - correct answer true An industry discharging into municipal collection and treatment systems must have an NPDES permit-true or false - correct answer false Barminutors and comminutors are installed for different purposes-true or false - correct answer false Floatable solids are easy to measure-true or false - correct answer false The effluent from primary clarifiers is usually clearer than the effluent from secondary clarifiers-true or false - correct answer false To start a clarifier, fill the tank with water and turn on the sludge collector mechanism-true or false - correct answer false Measurement of flow velocity in grit channels requires sophisticated equipment-true or false - correct answer false Detention time in aerated grit chamber usually ranges from three to five minutes at peak flow-true or false - correct answer true A cyclone grit separator depends on rotational forces to move grit up and out the top of the unit while water drains out the apex or bottom of the separator-true or false - correct answer false