Explore topic-wise MCQs in Concrete Technology.

This section includes 6 Mcqs, each offering curated multiple-choice questions to sharpen your Concrete Technology knowledge and support exam preparation. Choose a topic below to get started.

1.

What is the percentage of air by volume in Air Entraining Cement?

A. 3-4
B. 10-11
C. 7-8
D. 9
Answer» B. 10-11
Discussion
2.

What is the percentage of iron oxide in white cement?

A. High
B. Very high
C. Medium
D. Very low
Answer» E.
Discussion
3.

Approximate percentage range of A2O3 in OPC is _______

A. 17-25
B. 3-8
C. 3- 10
D. 4-15
Answer» D. 4-15
Discussion
4.

The minimum water to cement ratio for cement concrete to hydrate is _______

A. 0.65
B. 0.5
C. 0.38
D. 0.27
Answer» D. 0.27
Discussion
5.

For complete hydration of cement the w/c ratio needed is ________

A. More than 0.25
B. More than 0.25 but less than 0.35
C. More than 0.35 but less than 0.60
D. More than 0.60
Answer» D. More than 0.60
Discussion
6.

The slurry, in its movement down the kiln, encounters a progressively higher temperature. At first, the water is driven off and __________ is liberated.

A. SiO<sub>2</sub>
B. CO<sub>2</sub>
C. Gypsum
D. CaO
Answer» C. Gypsum
Discussion