1) Which one of the following is a softwood? a) beech b) oak c) redwood d) larch e) mahogony f) cedar 2) Which of the following are ferrous metals? a) mild steel b) copper c) aluminium d) wrought iron e) carbon steel f) gold 3) which of the following are correct? a) Thermoforming plastics soften with heat and can be reshaped b) thermosets soften with heat and can be reshaped c) thermofoprming plastics are easily recycled d) High impact polystyrene is a thermosetting plastic e) epoxy resin is a thermosetting plastic f) HDPE is a thermoset

Leaderboard

Visual style

Options

Switch template

Continue editing: ?