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Admixtures MCQ Questions - Concrete Technology

Admixtures MCQs : Here you will find MCQ Questions related to "Admixtures" in Concrete Technology. These Admixtures MCQ Questions Will help you to improve your Concrete Technology knowledge and will prepare you for various Examinations like Competitive Exams, Placements, Interviews and other Entrance Exmaniations

Question 1

Which of the following true regarding CONCRETE ADMIXTURES?

A. Admixtures can restore loads of concrete that might need to be rejected due to delays or other complications
B. They can improve the performance of problem concrete by modifying its characteristics and enhancing workability
C. Both A and B
D. None of the above

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Question 2

Admixtures are used for one purpose: to improve some characteristics of the concrete

C. Can be true or false
D. Can not say

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Question 3

How many major types of Concrete admixtures?

A. 1
B. 2
C. 3
D. 4

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Question 4

Which admixtures reduce the cost of construction, modify properties of hardened concrete, ensure quality of concrete during mixing/transporting/placing/curing?

A. Water
B. Mineral
C. Mechnical
D. Chemical

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Question 5

ASTM C494 specifies the requirements for ____________ chemical admixture types

A. 4
B. 5
C. 6
D. 7

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Question 6

Which of the following option doesn’t come in mineral admixtures?

A. Blast Furnace Slag
B. Flyash
C. Set retarders
D. Silica Fume

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Question 7

Mineral admixtures make mixtures more economical, reduce permeability, increase strength, and influence other concrete properties.

C. Can be true or false
D. Can not say

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Question 8

Damp proofing is done with a __________ based mixture.

A. Sand
B. Tar
C. Rubber
D. Lead

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Question 9

What is water proofing admixtures?

A. Water fair material
B. Water absorption material
C. Water adsorption material
D. Water repellent materials

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Question 10

Super plasticizers reduce water requirement by ___________ %.

A. 10%-15%
B. 1%-15%
C. 0%-15%
D. 10%-30%

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