E-Waste Management MCQs | 25 Practice Questions with Answers | CBSE Class 12 Informatics Practices (IP)
Class 12 · Informatics Practices
E-Waste Management MCQs (25 Questions)
Practice these multiple-choice questions to strengthen your understanding of E-Waste Management, Recycling, and Green Computing. Click Show Answer to reveal the correct answer and explanation.
Q1. What is E-Waste?
A. Food waste
B. Electronic devices that are discarded after use
C. Plastic bottles
D. Paper waste
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Answer: B. Electronic devices that are discarded after use.
Explanation: E-Waste includes discarded electrical and electronic equipment such as computers, mobile phones, printers, and televisions.
Q2. Which of the following is an example of E-Waste?
A. Old mobile phone
B. Broken laptop
C. Damaged printer
D. All of these
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Answer: D. All of these.
Explanation: Any discarded electronic or electrical device is considered E-Waste.
Q3. Why is E-Waste considered hazardous?
A. It contains toxic materials such as lead, mercury, and cadmium.
B. It pollutes soil and water.
C. It can harm human health.
D. All of these.
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Answer: D. All of these.
Explanation: Toxic substances present in electronic waste can damage the environment and affect human health.
Q4. Which of the following is the safest method of disposing of E-Waste?
A. Throwing it into household garbage
B. Burning it in open areas
C. Recycling through authorized E-Waste collection centres
D. Dumping it into rivers
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Answer: C.
Explanation: Authorized recycling centres ensure safe handling and recovery of valuable materials from electronic waste.
Q5. Which valuable material can be recovered from E-Waste?
A. Gold
B. Silver
C. Copper
D. All of these
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Answer: D. All of these.
Explanation: Many electronic devices contain valuable metals that can be recovered through proper recycling.
Q6. Which of the following contributes to the generation of E-Waste?
A. Frequent replacement of electronic devices
B. Rapid technological advancements
C. Short product life cycles
D. All of these
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Answer: D. All of these.
Explanation: Technology changes and frequent upgrades increase the amount of electronic waste.
Q7. Which practice helps reduce E-Waste?
A. Repairing devices instead of replacing them
B. Reusing electronic equipment
C. Donating working devices
D. All of these
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Answer: D. All of these.
Explanation: Repairing, reusing, and donating extend the life of electronic devices and reduce waste.
Q8. Green Computing refers to:
A. Environmentally responsible use of computers and electronic devices
B. Using only green-colored computers
C. Installing antivirus software
D. Designing websites
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Answer: A.
Explanation: Green Computing focuses on reducing the environmental impact of technology.
Q9. Which of the following is an example of Green Computing?
A. Switching off computers when not in use
B. Using energy-efficient devices
C. Printing only when necessary
D. All of these
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Answer: D. All of these.
Explanation: These practices help conserve energy and reduce environmental impact.
Q10. Which of the following is NOT a safe E-Waste disposal method?
A. Recycling through authorized centres
B. Donating working devices
C. Burning electronic waste in open areas
D. Refurbishing usable equipment
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Answer: C.
Explanation: Burning E-Waste releases toxic chemicals into the environment.
Q11. Which harmful substance is commonly found in electronic waste?
A. Mercury
B. Lead
C. Cadmium
D. All of these
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Answer: D.
Explanation: These toxic metals require careful handling during disposal and recycling.
Q12. Which statement about Green Computing is TRUE?
A. It reduces energy consumption.
B. It minimizes electronic waste.
C. It protects the environment.
D. All of these.
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Answer: D. All of these.
Explanation: Green Computing promotes sustainable and environmentally friendly use of technology.
Q13. Which of the following is a responsibility of every digital citizen?
A. Dispose of E-Waste responsibly.
B. Encourage recycling.
C. Reduce unnecessary electronic purchases.
D. All of these.
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Answer: D. All of these.
Explanation: Responsible disposal and sustainable use of electronics help protect the environment.
Q14. Which statement about E-Waste is TRUE?
A. It should not be mixed with household garbage.
B. It contains valuable recyclable materials.
C. Improper disposal harms the environment.
D. All of these.
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Answer: D. All of these.
Explanation: Proper collection and recycling are essential for managing electronic waste safely.
Q15. Which statement best summarizes E-Waste Management?
A. E-Waste should be disposed of responsibly.
B. Recycling conserves valuable resources.
C. Green Computing reduces environmental impact.
D. All of these.
Show Answer
Answer: D. All of these.
Explanation: Proper E-Waste management protects both the environment and human health while conserving natural resources.
Q16. A school collects old computers and sends them to an authorized recycling centre. This is an example of:
A. Improper disposal
B. Responsible E-Waste Management
C. Cyber Safety
D. Software Licensing
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Answer: B. Responsible E-Waste Management
Explanation: Authorized recycling centres safely process electronic waste and recover reusable materials.
Q17. A student upgrades to a new smartphone every year even though the old one works properly. This practice mainly:
A. Reduces E-Waste
B. Increases E-Waste
C. Improves recycling
D. Conserves natural resources
Show Answer
Answer: B. Increases E-Waste
Explanation: Frequently replacing working electronic devices contributes to the rapid growth of electronic waste.
Q18. Which of the following is the best example of Green Computing?
A. Keeping computers switched on throughout the day without use.
B. Printing every document unnecessarily.
C. Using power-saving mode and switching off devices when not required.
D. Throwing old computers into household garbage.
Show Answer
Answer: C.
Explanation: Green Computing encourages efficient use of energy and responsible use of electronic devices.
Q19. Which of the following is the most appropriate action before disposing of an old laptop?
A. Remove or securely erase personal data.
B. Hand it directly to an unauthorized scrap dealer.
C. Throw it into a dustbin.
D. Break the hard disk and discard it anywhere.
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Answer: A.
Explanation: Personal data should be securely erased before donating, recycling, or disposing of electronic devices.
Q20. Which statement correctly differentiates Reuse and Recycling?
A. Reuse means using the same device again without major processing.
B. Recycling means recovering useful materials from discarded electronic devices.
C. Both help reduce E-Waste.
D. All of these.
Show Answer
Answer: D. All of these.
Explanation: Reuse extends the life of devices, while recycling recovers valuable materials for future use.
Q21. Which of the following supports sustainable use of technology?
A. Repairing devices whenever possible.
B. Donating functional electronic equipment.
C. Purchasing energy-efficient devices.
D. All of these.
Show Answer
Answer: D. All of these.
Explanation: Repairing, donating, and using energy-efficient devices reduce environmental impact.
Q22. Which statement about government initiatives for E-Waste management is TRUE?
A. Authorized collection and recycling are encouraged.
B. Safe disposal helps protect the environment.
C. Producers and consumers share responsibility for E-Waste management.
D. All of these.
Show Answer
Answer: D. All of these.
Explanation: Government policies promote safe collection, recycling, and responsible disposal of electronic waste.
Q23. Which of the following is NOT recommended for E-Waste management?
A. Recycling through authorized centres.
B. Donating usable devices.
C. Burning electronic waste in open areas.
D. Repairing electronic devices before replacing them.
Show Answer
Answer: C. Burning electronic waste in open areas.
Explanation: Burning electronic waste releases harmful toxic gases and pollutes the environment.
Q24. Which statement correctly matches the concept with its purpose?
A. E-Waste Recycling → Recovery of useful materials.
B. Green Computing → Reducing environmental impact of technology.
C. Reuse → Extending the life of electronic devices.
D. All of these.
Show Answer
Answer: D. All of these.
Explanation: Each concept contributes to sustainable use of technology and environmental protection.
Q25. Which statement best summarizes E-Waste Management and Green Computing?
A. E-Waste should be collected and recycled responsibly.
B. Green Computing promotes energy-efficient and environmentally friendly use of technology.
C. Repairing, reusing, and recycling help conserve natural resources.
D. All of these.
Show Answer
Answer: D. All of these.
Explanation: Responsible E-Waste management and Green Computing work together to reduce pollution, conserve resources, and protect the environment.
Answer Key
| Q.No. | Answer | Q.No. | Answer | Q.No. | Answer |
|---|---|---|---|---|---|
| 1 | B | 11 | D | 21 | D |
| 2 | D | 12 | D | 22 | D |
| 3 | D | 13 | D | 23 | C |
| 4 | C | 14 | D | 24 | D |
| 5 | D | 15 | D | 25 | D |
| 6 | D | 16 | B | ||
| 7 | D | 17 | B | ||
| 8 | A | 18 | C | ||
| 9 | D | 19 | A | ||
| 10 | C | 20 | D |
Practice Tips
- Remember the key concepts:
- E-Waste → Discarded electrical and electronic devices.
- Green Computing → Environmentally responsible use of computers and technology.
- Reuse → Using electronic devices again without major processing.
- Recycling → Recovering useful materials from discarded electronic equipment.
- Hazards of E-Waste:
- Contains toxic metals such as Lead, Mercury, and Cadmium.
- Pollutes soil, water, and air if disposed of improperly.
- Can cause serious health problems in humans and animals.
- Ways to reduce E-Waste:
- Repair devices instead of replacing them.
- Donate or sell working electronic devices.
- Use authorized E-Waste recycling centres.
- Buy durable and energy-efficient electronic products.
- Erase personal data before disposing of electronic devices.
- Green Computing Practices:
- Switch off computers and monitors when not in use.
- Use sleep or power-saving mode.
- Reduce unnecessary printing.
- Choose energy-efficient devices.
- Recycle printer cartridges and batteries responsibly.
- Real-life examples:
- Donating an old laptop to a school → Reuse
- Sending a broken computer to an authorized recycler → Recycling
- Using LED monitors to reduce power consumption → Green Computing
- Deleting personal data before recycling a phone → Safe Disposal Practice
- CBSE Tip: Competency-based questions generally describe real-life situations involving old electronic devices. Identify whether the best solution is Repair, Reuse, Recycle, or another Green Computing practice before selecting your answer.