Which one of the following statements is NOT correct?
- ARustic Brick has mechanically textured finish, varying in pattern.
- BArch Bricks are over-burnt also known as clinker bricks obtained from inner portion of the kiln.
- CPale Bricks are over-burnt bricks obtained from outer portion of the kiln.Correct
- DBody Bricks are well burnt bricks occupying central portion of the kiln.
Solution
Concept
Bricks get different names based on their position in the clamp or kiln: arch bricks (inner, over-burnt), body bricks (central, well burnt), pale bricks (outer, under-burnt).
Step-by-step solution
1. Arch (clinker) bricks come from the inner portion near the fire. They are over-burnt, so statement B is correct. 2. Body bricks come from the central portion. They are well burnt, so statement D is correct. 3. Rustic bricks have a mechanically textured face with varying patterns, so statement A is correct. 4. Pale bricks come from the outer portion and are UNDER-burnt, not over-burnt. So statement C is NOT correct.
Explanation
Pale bricks lie in the outer part of the kiln, where heat is low, so they are under-burnt. Statement C wrongly calls them over-burnt. So C is the incorrect statement.
Why the other options are wrong
A: Correct statement; rustic bricks do have a mechanically textured finish. B: Correct statement; arch bricks are over-burnt clinker bricks from the inner portion. D: Correct statement; body bricks are well burnt bricks from the central portion.
Shortcut
Inner = over-burnt (arch), centre = well burnt (body), outer = under-burnt (pale).
Common mistake
Thinking pale bricks are over-burnt; actually only arch or clinker bricks are over-burnt.
Correct answer: C) Pale Bricks are over-burnt bricks obtained from outer portion of the kiln.