GATE CE 2024 Set 1 — Question 21

MCQ+1 / -0.33EasyWaste TreatmentMunicipal Solid WasteEnvironmental Engineering

Environmental Engineering → Municipal Solid Waste → Waste Treatment

Last updated 5 September 2026

Question

The following table gives various components of Municipal Solid Waste (MSW) and a list of treatment/separation techniques. Component of MSW Treatment/separation technique P - Ferrous metals i - Incineration Q - Aluminum and copper ii - Rapid composting R - Food waste iii - Eddy current separator S - Cardboard iv - Magnetic separator The CORRECT match is

Component of MSW	Treatment/separation technique
P - Ferrous metals	i - Incineration
Q - Aluminum and copper	ii - Rapid composting
R - Food waste	iii - Eddy current separator
S - Cardboard	iv - Magnetic separator

Correct answer (B) P-iv, Q-iii, R-ii, S-i Solution The correct matching of MSW components to their respective treatment or separation techniques is: P (Ferrous metals): Separated using a Magnetic separator (iv) . Q (Aluminum and copper): These are non-ferrous metals separated using an Eddy current separator (iii) . R (Food waste): Organic matter suitable for Rapid composting (ii) . S (Cardboard): Combustible material typically processed via Incineration (i) . This corresponds to the sequence P-iv, Q-iii, R-ii, S-i. Turn this into a strength. Explore AI-powered practice and doubt support with Success Tracker.

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Correct answer (B) P-iv, Q-iii, R-ii, S-i Solution The correct matching of MSW components to their respective treatment or separation techniques is: P (Ferrous metals): Separated using a Magnetic separator (iv) . Q (Aluminum and copper): These are non-ferrous metals separated using an Eddy current separator (iii) . R (Food waste): Organic matter suitable for Rapid composting (ii) . S (Cardboard): Combustible material typically processed via Incineration (i) . This corresponds to the sequence P-iv, Q-iii, R-ii, S-i.

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