Civil Engineering MCQs for Concrete Technology Part 2

Civil Engineering MCQs for Concrete Technology Part 2

In this article, you will get all Concrete Technology MCQs with answers for best practices for competitive exams to crack competitive exams will always update our article and add more and more MCQ so bookmark and share the civil experience site for the future learning.

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According to IS Specification, the compressive strength of ordinary portland cement after three days should not be less than ______

[A] 7 Mpa
[B] 11.50 Mpa
[C] 16 Mpa
[D] 21 Mpa

ANSWER= [C] 16 Mpa

According to IS Specification, the compressive strength of ordinary portland cement after three days should not be less than 16 Mpa

A minimum grade of reinforced concrete for mild exposure condition as per Indian standard code of practices is _____

[A] M₁₅
[B] M₂₀
[C] M₂₅
[D] M₃₀

ANSWER= [B] M₂₀

The minimum grade of reinforced concrete for mild exposure conditions as per the Indian standard code of practices is M₂₀

In general, the proportion of fine aggregate to coarse aggregates in the nominal concrete mix are _____

[A] 1:1.5
[B] 1:2
[C] 1:3
[D] 1:4

ANSWER= [B] 1:2

In general, the proportion of fine aggregate to coarse aggregates in the nominal concrete mix is 1:2

The minimum number of longitudinal bars in a circular column as per Indian standard is _____

[A] 4
[B] 6
[C] 8
[D] 12

ANSWER = [B] 6

The minimum number of longitudinal bars in a circular column as per Indian standard is 6

What would be the exit gradient for a permeable foundation in absence of the downstream pile?

[A] Zero
[B] 1.0
[C] 0.50
[D] Infinite

ANSWER= [D] Infinite

Under which of the following conditions, maximum cross-drainage work is expected?

[A] Ridge canal
[B] Contour canal
[C] Main canal
[D] Branch canal

ANSWER= [B] Contour canal

The characteristic strength of concrete is defined as that compressive strength below which is not more than

[A] 10% of results fail
[B] 5% of results fail
[C] 2% of results fail
[D] None of the above

ANSWER = [B] 5% of results fail

The characteristic strength of concrete is

[A] higher than the average cube strength
[B] lower than the average cube strength
[C] the same as the average cube strength
[D] higher than 90% of the average cube strength

ANSWER = [B] lower than the average cube strength

The characteristic strength of M20 concrete is 20 MPa. What is the number of cubes having 28 days’ compressive strength greater than 20 MPa out of 100 cubes made with this concrete?

[A] All
[B] 95
[C] 80
[D] 50

ANSWER = [B] 95

The characteristic strength of concrete mass is that value of strength below which not more than x percent of test results are expected to fall where x is equal to

[A] 5
[B] 10
[C] 15
[D] 20

ANSWER = [A] 5

What is the M25 concrete mix ratio?

[A] 1:1:2
[B] 1:1.5:3
[C] 1:2:4
[D] 1:3:6

ANSWER = [A] 1:1:2

What is the M20 concrete mix ratio?

[A] 1:1:2
[B] 1:1.5:3
[C] 1:2:4
[D] 1:3:6

ANSWER = [B] 1:1.5:3

What is the M15 concrete mix ratio?

[A] 1:1:2
[B] 1:1.5:3
[C] 1:2:4
[D] 1:3:6

ANSWER = [C] 1:2:4

What is the M10 concrete mix ratio?

[A] 1:1:2
[B] 1:1.5:3
[C] 1:2:4
[D] 1:3:6

ANSWER = [D] 1:3:6

Sheet piles are generally made of

[A] Concrete
[B] Steel
[C] Timber
[D] All the above

ANSWER = [D] All the above

Correct answer for Sheet piles are generally made of is All the above