GATE-ES SERIES
Environmental-microbiology

Water Treatment And Methods

3 previous year questions.

Volume: 3 Ques
Yield: Medium

High-Yield Trend

3
2025

Chapter Questions
3 MCQs

01
PYQ 2025
medium
environmental-microbiology ID: gate-es-
A common effluent treatment plant with a capacity of 2 million litres per day (MLD) employs reverse osmosis (RO) for water reuse. The RO unit removes 95% of the total dissolved solids (TDS) and the water recovery rate is 70%. If the TDS concentration in the RO feed is 8000 parts per million (ppm), the TDS in the RO reject is ________ g/L. (rounded off to one decimal place)
02
PYQ 2025
medium
environmental-microbiology ID: gate-es-
A common effluent treatment plant with a capacity of 2 million litres per day (MLD) employs reverse osmosis (RO) for water reuse. The RO unit removes 95% of the total dissolved solids (TDS) and the water recovery rate is 70%. If the TDS concentration in the RO feed is 8000 parts per million (ppm), the TDS in the RO reject is ________ g/L. (rounded off to one decimal place)
03
PYQ 2025
medium
environmental-microbiology ID: gate-es-
Choose the correct option(s) for removing solids from water.
1
chlorination
2
coagulation-flocculation-sedimentation followed by slow sand filtration
3
chlorination followed by aeration
4
slow sand filtration

About Water Treatment And Methods - GATE-ES

Water Treatment And Methods is a vital chapter for GATE-ES aspirants. Mastering the concepts covered in this chapter is essential for securing a top rank.

By rigorously practicing the previous year questions associated with this chapter, you can identify high-yield topics, understand the examiner's perspective, and boost your confidence during the actual exam.

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