Thermo Polymers Quiz

What is a thermo polymer (thermoplastic)?

• A) A plastic that cannot be reshaped once moulded

• B) A plastic that softens when heated and hardens when cooled

• C) A metal-based polymer

• D) A plastic that burns when heated

Which of the following is a thermo polymer?

• Urea formaldehyde

• Epoxy resin

• Acrylic (PMMA)

• Polyester resin

What happens to thermo polymers when reheated?

• They melt and become flexible

• They shatter

• They permanently harden

• They oxidise

Are thermo polymers recyclable?

• No

• Only once

• Yes, they can be remoulded

• Only if mixed with thermosets

What is High Density Polyethylene (HDPE) commonly used for?

• A) Car tyres

• B) Food containers and bottles

• C) Circuit boards

Which thermo polymer is commonly used for window and door frames?

• LDPE

• Polypropylene

• PVC

• Nylon

Which of these thermo polymers is known for being tough and shatter-resistant?

• A) Acrylic (PMMA)

• B) HIPS

• C) Polycarbonate

• D) Bakelite

Why is Polypropylene often used for food containers?

• It's biodegradable

• It's lightweight, flexible, and resists moisture

• It's heat-conductive

• It is a thermoset

Which of the following properties does Acrylic (PMMA) have?

• Opaque and brittle

• Transparent, hard, and scratches easily

• Conductive and magnetic

• Soft and absorbs water

What does HIPS stand for?

• Heat-insulated polymer surface

• High-impact polystyrene

• High-intensity polyethylene

• Hydrocarbon industrial polymer