_______________ is normally used for the manufacture of refrigerator components and transistor parts?
Correct answer: B. Polystyrene
- A. Polypropylene
- B. Polystyrene
- C. Polyester
- D. Polyurethane
Explanation
Polystyrene is lightweight, electrically insulating and easily moulded, which makes it suitable for refrigerator components and transistor parts. Polypropylene and polyurethane are used in other applications but are not the intended answer here.
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