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 15 of 24

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Q141.
For preparing a test-specimen, it is necessary

a.

to mix cement and fine aggregate by dry hand

b.

to mix coarse aggregates

c.

to mix water to the cement, fine aggregates and coarse aggregates

d.

all the above.

Discuss
Answer: (d).all the above.
Q142.
Concrete containing

a.

silicious aggregates, has higher co-efficient of expansion

b.

igneous aggregates, has intermediate coefficient of expansion

c.

lime stones, has lowest co-efficient of expansion

d.

All the above.

Discuss
Answer: (d).All the above.
Q143.
An ordinary Portland cement when tested for its fineness, should not leave any residue on I.S. seive No. 9, more than

a.

5%

b.

10%

c.

15%

d.

20%

Discuss
Answer: (b).10%
Q144.
The top diameter, bottom diameter and the height of a slump mould are :

a.

10 cm, 20 cm, 30 cm

b.

10 cm, 30 cm, 20 cm

c.

20 cm, 10 cm, 30 cm

d.

20 cm, 30 cm, 10 cm

Discuss
Answer: (a).10 cm, 20 cm, 30 cm
Q145.
Workability of concrete mix with low water cement ratio is determined by

a.

tensile strength test

b.

slump test

c.

compaction factor test

d.

flexural strength test

Discuss
Answer: (c).compaction factor test
Q146.
While designing an air entrained concrete

a.

water cement ratio is reduced

b.

proportion of aggregates is reduced

c.

an allowance for the entrained air is made

d.

all the above.

Discuss
Answer: (d).all the above.
Q147.
Ordinary Portland cement is manufactured from

a.

lime stone and clay

b.

gypsum and lime

c.

pozzolana

d.

lime, pozzolana and clay.

Discuss
Answer: (b).gypsum and lime
Q148.
A flaky aggregate is said to be elongated if its length is

a.

equal to the mean size

b.

twice the mean size

c.

thrice the mean size

d.

four times the mean size

Discuss
Answer: (b).twice the mean size
Q149.
To prevent segregation, the maximum height for placing concrete, is

a.

100 cm

b.

125 cm

c.

150 cm

d.

200 cm

Discuss
Answer: (a).100 cm
Q150.
If the various concrete ingredients i.e. cement, sand and aggregates are in the ratio of 1:3:6, the grade of concrete, is

a.

M 100

b.

M 150

c.

M 200

d.

M 250

Discuss
Answer: (a).M 100
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