Item 311

A high-resolution image of a construction site with concrete being poured, showing workers with tools and machines, and various concrete forms in the background.

Concrete Knowledge Quiz

Test your knowledge of concrete properties and construction practices with our comprehensive quiz designed for professionals and enthusiasts alike.

Challenge yourself with 10 questions covering topics such as:

Concrete properties
Mix designs
Quality control mechanisms

10 Questions2 MinutesCreated by MixingStone42

Cold joint is constructed when there is an interruption of __________ in the concreting operation.

60 min.

45 min.

30 min.

90 min.

The maximum size of coarse aggregates to be used in Item 311.

25 mm, Grading “B”

50 mm, Grading “C”

75 mm, Grading “A”

63 mm, Grading “D”

What is the primary Quality Control / Mechanism for the production of concrete mixture?

Slump test is a very important test in fresh concrete to determine __________?

Concrete beam sample when tested by Third-Point Method shall have a flexural strength of __________ when tested @ 14 days. (Mpa)

4.5

4.8

3.8

3.5

If slag is used as coarse aggregate in Item 311, the minimum density is __________.

1140 kg/m3

1220 kg/m3

1120 kg/m3

1210kg/m3

The diameter of Wire Mesh in lateral and longitudinal directions shall not be less than __________ and the weight shall not be less than __________.

6.5 mm, 3 kg/m2

7.0 mm, 3.10kg/m2

6.0 mm, 3 kg/m2

7.5 mm, 4 kg/m2

If the concrete pavement is well cured at any particular age, the most important single factor affecting the strength is __________.

The concrete in the area represented by the cores will be considered adequate if the average strength of the cores is equal to at least _____ of the specified strength, and if no single core is less than _____ of the specified strength.

80%, 70%

85%, 70%

85%, 75%

80%, 75%

Item 311

Concrete Knowledge Quiz

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