NPTEL Plastic Waste Management Week 1 Assignment Answers 2025
1. What is the resin code of Low density polyethylene (LDPE)?
a. 1
b. 3
c. 4
d. 6
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2. Which of the following statement is correct?
a. Plastics can be both thermally and electrically conductive.
b. Plastics have very low strength to weight ratio.
c. Plastics can be very resistant to chemicals and corrosion.
d. Plastics are not water resistant.
Answer :-
3. Which of the following is not a thermoplastic?
a. Teflon
b. Polyurethane
c. Nylon
d. Polycarbonate
Answer :-
4. Which country is the largest producer of plastic material?
a. India
b. United States of America
c. China
d. Russia
Answer :-
5. According to Plastic Europe market research group (PEMRG), which is the market sector having
largest plastic demand?
a. Packaging
b. Automotive
c. Electrical & Electronics
d. Agriculture
Answer :-
6. Which country has the highest percapita plastic products consumption, according to FICCI
report, 2017?
a. Brazil
b. Indonesia
c. China
d. United States of America
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7. Which type of plastic has highest demand in India, as per Chemicals & Petrochemical Statistics,
2013?
a. LLDPE
b. PET
c. PVC
d. HDPE
Answer :-
8. Stabilizers are type of additives added while producing plastics to:
a. remove fire-propagating radicals like H,OH and others
b. prolong the lifetime of the polymer by suppressing degradation
c. improve the plasticity and to impart softness to the plastic
d. impart strength, hardness and other properties to the plastic
Answer :-
9. Which type of plastic is called as “Poison Plastic”?
a. LDPE
b. PS
с. РЕТ
d. PVC
Answer :-
10. Which of the following is/are additives added to enhance the property of plastics?
a. Fillers
b. Plasticizers
C. lubricants
d. All of the above
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11. HDPE is the most commonly recycled plastic because it will not break under exposure to
extreme heat or cold
a. True
b. False
Answer :-
12. Thermosetting plastics can be recycled
a. True
b. False
Answer :-
13. Elastomers deform considerably under load at room temperature and return to their original
shape, when the load is released
a. True
b. False
Answer :-
14. Chemical composition of thermoplastics changes on heating
a. True
b. False
Answer :-
15. Plastics are materials with a seemingly limitless range of characteristics and colors and are easy to manufacture
a. True
b. False
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