Top 250+ Solved Concrete Technology MCQ Questions Answer

a. Water repellent materials

b. Water fair material

c. Water absorption material

d. Water adsorption material

a. Silicate of soda

b. Aluminium

c. Chalk

d. Zinc

a. Which adds water for workability

b. Which reduces water for workability

c. Which decreases workability at the same water content

d. Which oxidizes water for workability

a. 0

b. 1-.4%

c. 1%

d. 1-2%

a. 10%

b. 20%

c. 30%

d. 40%

a. Which speed up the initial set of concrete

b. Which delays the initial set of concrete

c. Which speed up the final set of concrete

d. Which delays the final set of concrete

a. Which speed up the initial set of concrete

b. Which delays the initial set of concrete

c. Which speed up the final set of concrete

d. Which delays the final set of concrete

a. True

b. False

c. none

d. all

a. Calcium fluosilicates act as a retarders

b. CaCl2 acts as a retarders

c. Gypsum acts as a retarders

d. Gypsum acts as an accelerators

a. 100

b. 150

c. 200

d. 250

a. Less reactive

b. Neutral

c. More reactive

d. Absent in concrete

a. 30-60%

b. 15-30%

c. Up to 30%

d. 1-7%

a. Strength

b. Workability

c. The effect of temp variations

d. The unit weight

a. Dehydration

b. Hydration

c. Drying

d. Dipping

a. Volume of water to the volume of cement

b. Volume of the hydrated cement paste to the sum of volumes of the hydrated cement

c. Volume of the hydrated cement paste to the sum of volumes of the hydrated cement and of the capillary pores

d. Volume of gel to the volume of space present in the concrete