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GATE 2023 AR — Architecture – Question 40

Infrastructure, Services and Utilities · Waste composition and characteristics · 2 marks · Multiple select

Under Solid Waste Management Rules 2016, which definitions are correct?

  1. Dry waste excludes biodegradable and inert waste.
  2. Combustible waste includes biodegradable, recyclable and hazardous waste with calorific value at most 800 kcal/kg.
  3. Domestic hazardous waste includes expired medicines, CFLs and used paint drums.
  4. Biodegradable waste is inorganic material not degraded biologically.

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Show answer and explanation

Correct answer: (A) Dry waste excludes biodegradable and inert waste.; (C) Domestic hazardous waste includes expired medicines, CFLs and used paint drums.

Explanation

A matches the dry-waste category’s exclusions, while expired medicines, lamps and contaminated containers are examples of domestic hazardous waste (C). The combustible-waste option misstates the category and calorific threshold. Biodegradability concerns biological decomposition, contrary to D. Select A, C.

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