Other questions in this quiz

2. Give two properties of urea formaldehyde

  • Hard, brittle, good electric insulator
  • Strong, good insulator

3. What is hardness?

  • The ability to with stand indentation, scratches and wear.
  • The ability to withstand forces.

4. What is tension strength?

  • The ability to resist breaking under tension.
  • The ability to withstand squashing forces.

5. What is casting

  • An object made by pouring molten metal or other material into a mould.
  • Made by placing a molten substance in a vacuum bag

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