Materials - Plastic - JSS1 Basic technology Past Questions and Answers - page 2
What advantage do plastics offer in construction?
Weight reduction
Corrosion resistance
Limited design options
High cost
What is a key characteristic of plastics compared to metals?
High conductivity
Low density
Rigidity
Opacity
What is a common application of plastics in construction?
Structural support
Insulation and decoration
Metalworking
Weight increase
What is a primary advantage of using plastics for packaging products?
High cost
Low durability
Corrosion resistance
Limited design options
In which industry are plastics commonly used for packaging products?
Aerospace
Automotive
Food and beverage
Construction
What is a common source of plastics?
A common source of plastics is petroleum, a fossil fuel from which organic polymers are derived through chemical processes. These polymers are then used to manufacture a wide range of plastic products, including packaging, automotive components, and construction materials.
What is a key characteristic of plastics?
A key characteristic of plastics is their versatility, which allows them to be moulded, extruded, and formed into various shapes and sizes. This property makes plastics adaptable to a wide range of applications in industries such as packaging, automotive, construction, and electronics.
What property makes plastics suitable for outdoor environments?
Plastics are suitable for outdoor environments due to their corrosion resistance, which allows them to withstand exposure to moisture, sunlight, and other environmental factors without degrading. This property makes plastics ideal for outdoor applications such as piping, cladding, and signage.
What industry commonly used plastics for packaging?
The food and beverage industry commonly used plastics for packaging products due to their versatility, durability, and cost-effectiveness. Plastics provide protection, convenience, and shelf life extension for a wide range of food and beverage items, contributing to their widespread use in packaging solutions.
What makes plastics suitable for packaging products?
Plastics are suitable for packaging products due to their versatility, which allows them to be moulded into various shapes and sizes to accommodate different items. Additionally, plastics offer properties such as durability, flexibility, and barrier protection, ensuring the safety and preservation of packaged goods.