Concrete Technology MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Concrete Technology, a fundamental topic in the field of Civil Engineering. Whether you're preparing for competitive exams, honing your problem-solving skills, or simply looking to enhance your abilities in this field, our Concrete Technology MCQs are designed to help you grasp the core concepts and excel in solving problems.

In this section, you'll find a wide range of Concrete Technology mcq questions that explore various aspects of Concrete Technology problems. Each MCQ is crafted to challenge your understanding of Concrete Technology principles, enabling you to refine your problem-solving techniques. Whether you're a student aiming to ace Civil Engineering tests, a job seeker preparing for interviews, or someone simply interested in sharpening their skills, our Concrete Technology MCQs are your pathway to success in mastering this essential Civil Engineering topic.

Note: Each of the following question comes with multiple answer choices. Select the most appropriate option and test your understanding of Concrete Technology. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

So, are you ready to put your Concrete Technology knowledge to the test? Let's get started with our carefully curated MCQs!

Concrete Technology MCQs | Page 6 of 24

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Q51.
An aggregate is said to be flaky, if its least dimension is less than

a.

2/3 mean dimension

b.

3/4 mean dimension

c.

3/5 mean dimension

d.

5/8 mean dimension

Discuss
Answer: (c).3/5 mean dimension
Q52.
Pick up the incorrect statement from the following:

a.

A rich mix of concrete possesses higher strength than that a lean mix of desired workability with excessive equantity of water

b.

The strength of concrete decreases as the water cement ratio increases

c.

If the water cement ratio is less than 0.45, the concrete is not workable and causes honey-combed structure

d.

Good compaction by mechanical vibrtions, increases the strength of concrete

Discuss
Answer: (a).A rich mix of concrete possesses higher strength than that a lean mix of desired workability with excessive equantity of water
Q53.
The percentage of the aggregate of F.M. 2.6 to be combined with coarse aggregate of F.M. 6.8 for obtaining the aggregates of F.M. 5.4, is

a.

30%

b.

40%

c.

50%

d.

60%.

Discuss
Answer: (c).50%
Q54.
Hardening of cement occurs at

a.

rapid rate during the first few days and afterwards it continues to increase at a decreased rate

b.

slow rate during the first few days and afterwards it continues to increase at a rapid rate

c.

uniform rate throughout its age

d.

none of these.

Discuss
Answer: (d).none of these.
Q55.
Pick up the correct statement from the following:

a.

Lime in excess, causes the cement to expand and disintegrate

b.

Silica in excess, causes the cement to set slowly

c.

Alumina in excess, reduces the strength of the cement

d.

All the above.

Discuss
Answer: (d).All the above.
Q56.
Batching error means inaccuracy in the quantity of

a.

aggregates

b.

cement

c.

water

d.

all the above.

Discuss
Answer: (d).all the above.
Q57.
Pick up the correct statement from the following i.

a.

Higher workability indicates unexpected increase in the moisture content

b.

Higher workability indicates deficiency of sand

c.

If the concrete mix is dry, the slump is zero

d.

All the above.

Discuss
Answer: (d).All the above.
Q58.
You are asked to construct a massive dam, the type of cement you will use, is

a.

ordinary Portland cement

b.

rapid hardening cement

c.

low heat cement

d.

blast furnace slag cement

Discuss
Answer: (c).low heat cement
Q59.
I.S. Sieve Nos. 10 mm and 4.75 mm are geneally used for grading of

a.

coarse aggregates

b.

fine aggregates

c.

neither (a) nor (b)

d.

both (a) and (b)

Discuss
Answer: (d).both (a) and (b)
Q60.
Pick up the correct statement from the following:

a.

The free water is the amount of water added while mixing and the amount of water held on the surface of the aggregates prior to mixing

b.

The total water is the free water and the amount actually absorbed by the aggregates

c.

Neither (a) nor (b)

d.

Both (a) and (b).

Discuss
Answer: (d).Both (a) and (b).
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