Municipal Solid Waste Management Week 5 NPTEL Assignemt Answers 2025

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✅ Subject: Municipal Solid Waste Management
📅 Week: 5
🎯 Session: NPTEL 2025 July-October
🔗 Course Link: Click HereMunicipal Solid Waste Management Week 4 NPTEL Assignemt Answers 2025
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NPTEL Municipal Solid Waste Management Week 5 Assignemt Answers 2025

1. The feasibility of waste for the incineration process should have:

• Moisture content <45%
• Moisture content <60%
• Ash content <70%
• Volatile matter >10%

Answer : See Answers

2. Calculate the higher heating value of a solid fuel Use the following data for calculation Low heating value = 16 kJ/kg Moisture content = 10% Weight of hydrogen = 3%

• 516 kJ/kg
• 480 kJ/kg
• 916 kJ/kg
• 25 kJ/kg

Answer :

3. The potential for energy generation from waste depends on?

• Ash content
• Calorific value
• Fixed carbon
• Moisture content

Answer :

4. What is the concentration of ash content in flue gas from moving grate incinerator?

• 5 – 10%
• 1 – 4%
• 1 – 3%
• 11 – 15%

Answer :

5. Which component has higher concentration in RDF?

• Organic waste
• Inert
• Glass/metal
• Combustible materials

Answer :

6. Which of the incineration residue causes slagging and fouling?

• Gas
• Fly ash
• Tar
• None of these

Answer : See Answers

7. What are the products of the incineration of waste?

• Ash, flue gas, heat
• Char, syngas, heat
• Ash, tar, heat
• Char, flue gas, heat

Answer :

8. The gross calorific value of a solid fuel represents its

• Net calorific value
• Lower heating value
• Higher heating value
• Lower calorific value

Answer :

9. In waste characterization, which of the following parameters is not considered in a Tanner diagram?

• Moisture content
• Ash content
• Volatile matter
• Fixed carbon

Answer :

10. According to the CPHEEO manual, what is the minimum gas phase combustion temperature and residence time of flue gas that should be maintained for MSW incineration?

• 850°C and 10 s, respectively
• 850°C and 2 s, respectively
• 1100°C and 2 s, respectively
• 1100°C and 10 s, respectively

Answer :  See Answers