NRMCA CONCRETE TECHNOLOGIST
LEVEL II – FUNDAMENTALS OF
CONCRETE EXAM QUESTIONS AND
CORRECT ANSWERS LATEST
UPDATE 2026/2027 GRADED A+ .
, 1. 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
2. The approximate proportion of aggregates by volume in a typical concrete mixture is ✔✔
ANSW 70%
3. The approximate weight of 1 cubic yard of normal-weight concrete is ✔✔ ANSW 4000
4. The chemical reaction between portland cement and water is call hydration. True or False ✔✔
ANSW True
5. From a perspective of economy and performance, an important goal is to maximize the
volume of paste in concrete. True or False ✔✔ ANSW False
6. What are some benefits of reducing the w/cm ratio in concrete mixtures ✔✔ ANSW In-crease strength,
reduce permeability and therby durability, increase abrasion resistance, reduce shrinkage, increase stittness (modulus of elasticity), reduce
segregation.
7. Two different concrete mixtures with different ingredients at the same w/cm
ratio with have the same compressive strength. True or False ✔✔ ANSW False - the strength to w/cm
relationship is unique to a set up materials
8. Workability can be defined by ✔✔ ANSW Ease of placing, handling, and finishing concrete with minimal segregation.
9. Concrete that has to be pumped will generally need an increase in the fine aggregate content. True
or False ✔✔ ANSW True
10. A good indicator of whether concrete contains excessive water is if it has a high slump. True or False ✔
✔ ANSW False - concrete mixtures can be designed for high slum while maintaining a low water content.
LEVEL II – FUNDAMENTALS OF
CONCRETE EXAM QUESTIONS AND
CORRECT ANSWERS LATEST
UPDATE 2026/2027 GRADED A+ .
, 1. 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
2. The approximate proportion of aggregates by volume in a typical concrete mixture is ✔✔
ANSW 70%
3. The approximate weight of 1 cubic yard of normal-weight concrete is ✔✔ ANSW 4000
4. The chemical reaction between portland cement and water is call hydration. True or False ✔✔
ANSW True
5. From a perspective of economy and performance, an important goal is to maximize the
volume of paste in concrete. True or False ✔✔ ANSW False
6. What are some benefits of reducing the w/cm ratio in concrete mixtures ✔✔ ANSW In-crease strength,
reduce permeability and therby durability, increase abrasion resistance, reduce shrinkage, increase stittness (modulus of elasticity), reduce
segregation.
7. Two different concrete mixtures with different ingredients at the same w/cm
ratio with have the same compressive strength. True or False ✔✔ ANSW False - the strength to w/cm
relationship is unique to a set up materials
8. Workability can be defined by ✔✔ ANSW Ease of placing, handling, and finishing concrete with minimal segregation.
9. Concrete that has to be pumped will generally need an increase in the fine aggregate content. True
or False ✔✔ ANSW True
10. A good indicator of whether concrete contains excessive water is if it has a high slump. True or False ✔
✔ ANSW False - concrete mixtures can be designed for high slum while maintaining a low water content.
