Question

Maximum size of aggregates should not be larger than _______________

(a) 1/3 the thickness of a slab

(b) 1/2 the thickness of a slab

(c) 1/1 the thickness of a slab

(d) 1/4 the thickness of a slab

I had been asked this question in an interview for job.

This interesting question is from American Concrete Method of Mix Design topic in portion Concrete Mix Design of Concrete Technology

Answer 1

Right answer is (a) 1/3 the thickness of a slab

To explain I would say: Maximum size of aggregates should not be larger than 1/3 the thickness of a slab.