Multiple choice general knowledge

Which of the following is NOT a building material?

  1. gypsum

  2. aggregate of crushed stone, sand and gravel

  3. clay

  4. limestone
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Gypsum, aggregate (crushed stone/sand/gravel), and clay are all direct building materials used in construction. Limestone is primarily a source material for cement production (through calcination) rather than a direct building material in its natural form, though crushed limestone can be used as aggregate.

Keep practicing — related questions