Discussion
Which is NOT a type of plastic wastes degradation which occurs during processing ?
Answer: D
The one that is not a type of degradation is 'Contaminical'.
'Contaminical' is not a real term. Contamination of plastic waste is a problem for recycling, but it is not a mode of degradation.
The other three are real. Plastics undergo thermal degradation from the heat of melting and extrusion, mechanical degradation from shear forces that break polymer chains during grinding and processing, and chemical degradation, such as oxidation or hydrolysis, often triggered by heat, oxygen or moisture. Repeated processing lowers molecular weight and properties through these mechanisms, which limits how often a plastic can be recycled.
Post your comment
Please log in or register to post a comment.
Examination Categories
- SSC Exams
- Banking Exams
- Teaching Exams
- Civil Services Exams
- Railways Exams
- Engineering Recruitment Exams
- Defence Exams
- State Government Exams
- Police Exams
- Insurance Exams
- Nursing Exams
- Other Government Exams
- NRA CET
- PG Entrance Exams
- Campus Placement
- MBA Entrance Exams
- CUET and UG Entrance
- Judiciary Exams
- Regulatory Body Exams
- Software Development