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Q: Based on their physical and mechanical properties, clay bricks are classified into _____ classes.
  • A. two
  • B. one
  • C. six
  • D. four
Correct Answer: Option D - Classification of bricks based on their physical and mechanical properties. (i) First class brick (ii) Second class brick (iii) Third class brick (iv) Fourth class brick
D. Classification of bricks based on their physical and mechanical properties. (i) First class brick (ii) Second class brick (iii) Third class brick (iv) Fourth class brick

Explanations:

Classification of bricks based on their physical and mechanical properties. (i) First class brick (ii) Second class brick (iii) Third class brick (iv) Fourth class brick