Percentage of silica in a good brick earth lies between
A. 5 to 10%
B. 20 to 30%
C. 50 to 60%
D. 70 to 80%
Answer: Option C
This Question Belongs to Civil Engineering >> Building Materials
Join The Discussion
Comments ( 2 )
Related Questions on Building Materials
For the manufacture of plywood, veneers are placed so that grains of adjacent veneers
A. Run at right angles
B. Parallel
C. Inclined at 45°
D. Inclined at 60°
The most important constituent of an oil paint, is
A. Thinner
B. Vehicle
C. Pigment
D. All the above
Stucco paints are suitable for
A. Stone masonry
B. Brick walls
C. Both (A) and (B)
D. Neither (A) nor (B)
Silica 50%-60%
Alumina 20%-30
Lime 2%-5%
Iron oxide greater or equal to 7%
Magnesia less than 1%
60-65%