Question

What is the size of fine aggregates?

(a) 4.75mm

(b) < 4.75mm

(c) > 4.75mm

(d) 12mm

The question was asked in an international level competition.

Origin of the question is Classification of Aggregates topic in section Aggregates and Testing of Aggregates of Concrete Technology

Answer 1

Right choice is (b) < 4.75mm

Best explanation: The size of the fine aggregates is less than 4.75mm because it passes from 4.75 mm sieve at its lowest so there is no chance for more than 4.75mm in its size.