1. The main function of alumina in brick earth is _____.
[A] To impart plasticity
[B] To increase durability
[C] To increase impermeability
[D] To prevent shrinkage
Answer: Option A
2. The over ground continuous kiln is _____.
[A] Tunnel kiln
[B] Bull’s trench kiln
[C] Hoffman’s kiln
[D] All of these
Answer: Option C
3. Bullnose bricks are not used in _____.
[A] Arches
[B] Walls
[C] Pillars
[D] Rounding off sharp corners
Answer: Option B
4. Fire bricks should be laid in a ______.
[A] Fire clay mortar
[B] Fire cement mortar
[C] Lime mortar
[D] All of the above
Answer: Option A
5. The process of mixing sand with the powdered natural soil to improve the quality is known as _____.
[A] Pugging
[B] Tempering
[C] Blending
[D] Moulding
Answer: Option C