1.

Which one of the below is the most important ingredient in the brick earth?(a) Alumina(b) Lime(c) Silica(d) MagnesiaThis question was posed to me in an interview for job.Query is from Composition of Good Brick Earth in portion Materials for Construction of Basic Civil Engineering

Answer»

The CORRECT OPTION is (c) SILICA

The best I can EXPLAIN: The amount of silica present in BRICK earth is 50-60% and it prevents cracking and warping of raw bricks.



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