Explore topic-wise MCQs in Concrete Technology.

This section includes 9 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.

The coefficient of thermal expansion affects the heat resistance.

A. False
B. True
Answer» C.
Discussion
2.

The thermal conductivity of the aggregates is ______________

A. The ability to conduct the heat
B. The ability to insulate the heat
C. Is a measure of its heat capacity
D. Same as thermal conductivity
Answer» B. The ability to insulate the heat
Discussion
3.

The specific heat of the aggregates is _____________

A. The ability to conduct the heat
B. The ability to insulate the heat
C. Is a measure of its heat capacity
D. Same as thermal conductivity
Answer» D. Same as thermal conductivity
Discussion
4.

The linear thermal coefficient of expansion lies between approximately ____________

A. 5.4 * 10<sup>-6</sup> and 12.6 * 10<sup>-6</sup> per <sup>o</sup>C
B. 10.8 * 10<sup>-6</sup> and 16.2 * 10<sup>-6</sup> per <sup>o</sup>C
C. 5.8 * 10<sup>-6</sup> and 14 * 10<sup>-6</sup> per <sup>o</sup>C
D. 10.8 * 10<sup>-6</sup> and 12.6 * 10<sup>-6</sup> per <sup>o</sup>C
Answer» D. 10.8 * 10<sup>-6</sup> and 12.6 * 10<sup>-6</sup> per <sup>o</sup>C
Discussion
5.

For hydrated Portland cement, the coefficient of thermal expansion lies between approximately ____________

A. 5.4 * 10<sup>-6</sup> and 12.6 * 10<sup>-6</sup> per <sup>o</sup>C
B. 10.8 * 10<sup>-6</sup> and 16.2 * 10<sup>-6</sup> per <sup>o</sup>C
C. 5.4 * 10<sup>-6</sup> and 10.8 * 10<sup>-6</sup> per <sup>o</sup>C
D. 10.8 * 10<sup>-6</sup> and 12.6 * 10<sup>-6</sup> per <sup>o</sup>C
Answer» C. 5.4 * 10<sup>-6</sup> and 10.8 * 10<sup>-6</sup> per <sup>o</sup>C
Discussion
6.

For majority of aggregates, the coefficient of thermal expansion lies between approximately ____________

A. 5.4 * 10<sup>-6</sup> and 12.6 * 10<sup>-6</sup> per <sup>o</sup>C
B. 10.8 * 10<sup>-6</sup> and 16.2 * 10<sup>-6</sup> per <sup>o</sup>C
C. 5.4 * 10<sup>-6</sup> and 10.8 * 10<sup>-6</sup> per <sup>o</sup>C
D. 10.8 * 10<sup>-6</sup> and 12.6 * 10<sup>-6</sup> per <sup>o</sup>C
Answer» B. 10.8 * 10<sup>-6</sup> and 16.2 * 10<sup>-6</sup> per <sup>o</sup>C
Discussion
7.

If the coefficient of the two materials differ by more than 5.4 * 10-6 per oC, then?

A. Workability of concrete may freeze
B. Durability of concrete subjected to freezing
C. Durability of concrete subjected to boiling
D. Workability of concrete subjected to boiling
Answer» C. Durability of concrete subjected to boiling
Discussion
8.

Coefficient of thermal expansion of concrete is __________ coefficient of thermal expansion in aggregates.

A. Directly proportional
B. Inversely proportional
C. Equal
D. More than
Answer» B. Inversely proportional
Discussion
9.

How many principal thermal properties are there for aggregates?

A. 1
B. 2
C. 3
D. 4
Answer» D. 4
Discussion