What is the maximum permissible tolerance for length and width respectively?(a) ± 3mm and ± 6mm(b) ± 6mm and ± 3mm(c) ± 3cm and ± 6cm(d) ± 6cm and ± 3cmI had been asked this question in an online quiz.The doubt is from Tests on Bricks in chapter Materials for Construction of Basic Civil Engineering

What is the maximum permissible tolerance for length and width respect

1.	What is the maximum permissible tolerance for length and width respectively?(a) ± 3mm and ± 6mm(b) ± 6mm and ± 3mm(c) ± 3cm and ± 6cm(d) ± 6cm and ± 3cmI had been asked this question in an online quiz.The doubt is from Tests on Bricks in chapter Materials for Construction of Basic Civil Engineering
Answer» Correct choice is (B) ± 6mm and ± 3mm The explanation is: The standard SIZE of brick is length – 190mm and width – 90mm.When manufactured, size variations may OCCUR by expansion or contraction while DRYING and BURNING process.Permissible tolerance is ± 6mm for length and ± 3mm for width and height.

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