Question

Form unimportant works, the consolidation of concrete is carried out by ___________ method which include Ramming, tamping, spading and slicing with suitable tools.

(a) Machine

(b) Roller

(c) Vibrator

(d) Hand

This question was addressed to me in final exam.

My doubt is from Curing of Concrete topic in division Cement Concrete Construction of Construction & Building Materials

Answer 1

Correct choice is (d) Hand

The best explanation: The Hand Method require use of a fairly wet concrete. It should however be remembered that wherever feasible, the hand competition should be preferred because the use of vibrator may lead to the segregation of the aggregates.