NRMCA Concrete Technologist Level II - Fundamentals of Concrete - Tab 1 exam questions and correct answers| Latest 2026/2027

NRMCA Concrete Technologist Level II - Fundamentals of Concrete - Tab 1 exam questions and correct answers| Latest 2026/2027 Name 4 benefits of using concrete for construction Economical; cast in any shape, color, texture; ingredients are locally available; properties can be customized for application The approximate proportion of aggregates by volume in a typical concrete mixture is 70% The approximate weight of 1 cubic yard of normal-weight concrete is 4000 The chemical reaction between portland cement and water is call hydration. True or False? True From a perspective of economy and performance, an important goal is to maximize the volume of paste in concrete. True or False? False What are some benefits of reducing the w/cm ratio in concrete mixtures? Increase strength, reduce permeability and therby durability, increase abrasion resistance, reduce shrinkage, increase stiffness (modulus of elasticity), reduce segregation. Two different concrete mixtures with different ingredients at the same w/cm ratio with have the same compressive strength. True or False? False - the strength to w/cm relationship is unique to a set up materials