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 3 of 24

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Q21.
Hydration of cement is due to chemical action of water with

a.

Tricalcium silicate and dicalcium silicate

b.

Dicalcium silicate and tricalcium aluminate

c.

Tricalcium aluminate and tricalcium alumino ferrite

d.

All the above.

Discuss
Answer: (d).All the above.
Q22.
To obtain cement dry powder, lime stones and shales or their slurry, is burnt in a rotary kiln at a temperature between

a.

1100° and 1200°C

b.

1200° and 1300°C

c.

1300° and 1400°C

d.

1400° and 1500°C

Discuss
Answer: (d).1400° and 1500°C
Q23.
Permissible compressive strength of M 300 concrete grade is

a.

100 kg/cm²

b.

150 kg/cm²

c.

200 kg/cm²

d.

300 kg/cm²

Discuss
Answer: (d).300 kg/cm²
Q24.
The standard sand now a days used in India, is obtained from

a.

Jaipur (Rajasthan)

b.

Jullundur (Punjab)

c.

Hyderabad (Andhra Pradesh)

d.

Ennore (Madras)

Discuss
Answer: (d).Ennore (Madras)
Q25.
To ensure constant moisture content in aggregates

a.

area of each aggregate pile should be large

b.

height of each aggregate pile should not exceed 1.50 m

c.

aggregate pile should be left for 24 hours before aggregates are used

d.

all the above.

Discuss
Answer: (d).all the above.
Q26.
Workability improved by adding

a.

air-entraining agent

b.

foaming agent

c.

oily-agent

d.

all the above.

Discuss
Answer: (d).all the above.
Q27.
The commonly used material in the manufacture of cement is

a.

sand stone

b.

slate

c.

lime stone

d.

graphite.

Discuss
Answer: (c).lime stone
Q28.
If 20 kg of coarse aggregate is sieved through 80 mm, 40 mm, 20 mm, 10 mm, 4.75 mm, 2.36 mm, 1.18 mm, 600 micron, 300 micron and 150 micron standard sieves and the weights retained are 0 kg, 2 kg, 8 kg, 6 kg, 4 kg respectively, the fineness modulus of the aggregate, is

a.

7.30

b.

7.35

c.

7.40

d.

7.45

Discuss
Answer: (c).7.40
Q29.
Curing a concrete for long period ensures better

a.

volume stability

b.

strength

c.

water resistance

d.

all the above.

Discuss
Answer: (d).all the above.
Q30.
For the construction of cement concrete floor, the maximum permissible size of aggregate, is

a.

4 mm

b.

6 mm

c.

8 mm

d.

10 mm

Discuss
Answer: (d).10 mm
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