Question

What is the initial setting time?

(a) The time at which cement paste loses its plasticity

(b) The time at which cement paste loses its elasticity

(c) The time at which cement paste gains its plasticity

(d) The time at which cement paste gains its elasticity

Answer 1

The correct answer is (a) The time at which cement paste loses its plasticity

To explain I would say: The time at which cement paste loses its plasticity is known as initial setting time of the concrete.