Theodolite is used by

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• Theodolite is used by
• is a method where water is used as a medium for the flow of sewage from its production of the treatment unit.
• The most widely used pumps for sewage lifting is
• Which of the following device is used for the removal of oil and grease?
• How many types of aerators are commonly used in the treatment of wastewater?
• How many types of trickling filters are used in sewage treatment?
• Which of the following filter is used in the anaerobic treatment of sewage?
• The maximum depth of aeration tank used in activated sludge process is
• Which type of reactor is used for mixing chemicals in water treatment?
• Ionisation chamber can be used for the detection of all of the following EXCEPT