My Cart
Your Cart 0

    Your cart is empty.

  • Total (Amount) ₹0.00
Previous year question hub

Industrial Effluents, Recycling and Zero Liquid Discharge - Water & Wastewater Treatment and Management - Environmental Science & Engineering Previous Year Questions

Practice Industrial Effluents, Recycling and Zero Liquid Discharge - Water & Wastewater Treatment and Management - Environmental Science & Engineering previous year questions organised from real papers, with year-wise coverage and clear topic navigation.

2Papers
2Years
4Questions
1Topics

Industrial Effluents, Recycling and Zero Liquid Discharge question pattern

Every graph below is calculated only from this selection.

Questions by year

Year-wise coverage for Industrial Effluents, Recycling and Zero Liquid Discharge. Each bar uses a separate theme-derived color.

Difficulty distribution

How the classified questions are distributed by difficulty.

Medium 3 75%
Easy 1 25%

Question type distribution

MCQ, numerical, multiple-select and other formats found in these papers.

Numerical Answer Type (NAT) 2 50%
MCQ 1 25%
MSQ 1 25%

Subject weightage

Top subjects by unique question coverage.

Environmental Science & Engineering
4 Qs

Most asked topics

Top topics across the included previous year papers.

Water & Wastewater Treatment and Management
4 Qs

Subtopic coverage

Top subtopics inside this exact selection.

Industrial Effluents, Recycling and Zero Liquid Discharge
4 Qs

Paper coverage

Question coverage for the most populated papers. Every active PYP paper remains listed below.

Environmental Science & Engineering (ES) 2025
2 Qs
Environmental Science & Engineering (ES) 2022
2 Qs

Included previous year papers

Newest papers appear first. Sort by year, question coverage or name.

PaperYear / sessionQuestions in this viewOpen
Environmental Science & Engineering (ES) 202520252View paper
Environmental Science & Engineering (ES) 202220222View paper

All Industrial Effluents, Recycling and Zero Liquid Discharge previous year questions

Practice every matching question in batches of 20, with every available option.

1
2025 · Environmental Science & Engineering · Water & Wastewater Treatment and Management · Industrial Effluents, Recycling and Zero Liquid Discharge
Environmental Science & Engineering (ES) 2025

Multiple effect evaporator is commonly used, in the zero liquid discharge (ZLD) scheme, for ________

Open complete paper
2
2025 · Environmental Science & Engineering · Water & Wastewater Treatment and Management · Industrial Effluents, Recycling and Zero Liquid Discharge
Environmental Science & Engineering (ES) 2025
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)
Open complete paper
3
2022 · Environmental Science & Engineering · Water & Wastewater Treatment and Management · Industrial Effluents, Recycling and Zero Liquid Discharge
Environmental Science & Engineering (ES) 2022
For effluents generated by a molasses based distillery and wood based pulp and paper industry, which of the following statement(s) is/are NOT correct?
Open complete paper
4
2022 · Environmental Science & Engineering · Water & Wastewater Treatment and Management · Industrial Effluents, Recycling and Zero Liquid Discharge
Environmental Science & Engineering (ES) 2022
A centrifuge is processing 1000 litres per hour of water containing 2 g per litre of suspended solids. The thickened slurry coming out of the centrifuge has solids concentration of 20 g per 100 ml. If the centrifuge has 99% efficiency based on solids separation, the flow rate (in litres per hour, rounded off to one decimal place) of the supernatant stream will be __________.
Open complete paper