GATE CE 2017 Set 2 — Question 50
Go beyond PYQs with Success TrackerAI-powered personalised practice and doubt support. Unlimited practice on eligible plans; AI usage limits apply.NAT+2 / -0MediumWaste CharacteristicsMunicipal Solid WasteEnvironmental Engineering
Environmental Engineering → Municipal Solid Waste → Waste Characteristics
Last updated
Question
The composition of a municipal solid waste sample is given below:
The difference between the energy content of the waste sample calculated on dry basis and as-discarded basis (in kJ/kg) would be ___________
| Component | Percent by Mass | Moisture Content (%) | Energy Content (kJ/kg, on as-discarded basis) |
|---|---|---|---|
| Food Waste | 20 | 70 | 2500 |
| Paper | 10 | 4 | 10000 |
| Cardboard | 10 | 4 | 8000 |
| Plastics | 10 | 1 | 14000 |
| Garden Trimmings | 40 | 60 | 3500 |
| Wood | 5 | 20 | 14000 |
| Tin Cans | 5 | 2 | 100 |
Correct answer
3850 to 3900
Solution
1.Calculate Energy Content on As-Discarded Basis ():
2.Calculate Total Moisture Content ():
3.Calculate Energy Content on Dry Basis ():
4.Calculate the Difference:
Difference = Final answer is 3870 kJ/kg, which falls within the range [3850, 3900].Continue learning with Success Tracker
A step still unclear? Work through it with support
Use Success Tracker to ask about the reasoning, then try another GATE CE question to check your understanding.
AI-powered practice· Unlimited practice on eligible plans
- PYQs with solutions
- Attempt available previous-year questions, then compare your reasoning with the worked solution. Coverage varies by stream.
- Practice that adapts
- Choose a topic, work on weaker areas and bookmark questions to revisit. Your attempts feed your progress tracking.
- AI doubt support
- Ask follow-up questions about a step or concept while practising, instead of stopping at the final answer.
Unlimited practice is available on eligible plans. Free practice and AI usage have limits; check the current plan allowances before choosing.
This page stays readable without an account. AI responses can be wrong; check them against the solution and source material.
More questions on Municipal Solid Waste
2026 Set 1 Q21A rapid sand filter bed of depth m has % porosity during service cycle. It is…2026 Set 1 Q22The settling velocity of inorganic particles in the sedimentation tank of a water treatment plant…2026 Set 1 Q25Which of the following components is/are NOT removed in the secondary treatment of sewage?2026 Set 2 Q27Column I presents common air pollutants, and column II presents treatment technologies commonly…2026 Set 2 Q28One-third of the solid matter in a sludge containing water is composed of fixed mineral…