- (A) preparation of clay
- (B) moulding of clay
- (C) drying of bricks
- (D) burning of bricks
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- (A) overburnt bricks
- (B) underburnt bricks
- (C) refractory bricks
- (D) first class bricks
- (A) equal to the size of a fully burnt brick
- (B) smaller than the size of a fully burnt brick
- (C) greater than the size of a fully burnt brick
- (D) none of the above
- (A) kneading
- (B) moulding
- (C) pugging
- (D) drying
- (A) alumina
- (B) silica
- (C) iron
- (D) magnesia
- (A) cracking and warping of bricks
- (B) loss of cohesion
- (C) enhancing the impermeability of bricks
- (D) none of the above
- (A) 190 mm x 90mmx 80 mm
- (B) 190 mm x 190 mm x 90 mm
- (C) 200 mm x 100 mm x 100 mm
- (D) 200 mm x 200 mm x 100 mm
- (A) 5 to 10%
- (B) 20 to 30%
- (C) 50 to 60%
- (D) 70 to 80%
- (A) 5 to 10%
- (B) 20 to 30%
- (C) 50 to 60%
- (D) 70 to 80%
- (A) impermeable
- (B) brittle and weak
- (C) to lose cohesion
- (D) to crack and warp on drying
