Aggregate and Cement Testing - Problem Set
Q. What is the main function of aggregates in concrete?
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A.
To provide thermal insulation
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B.
To reduce shrinkage
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C.
To provide bulk and strength
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D.
To enhance color
Solution
Aggregates provide bulk and strength to concrete, making it a composite material.
Correct Answer: C — To provide bulk and strength
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Q. What is the primary purpose of cement in concrete?
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A.
To provide tensile strength
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B.
To bind aggregates together
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C.
To improve workability
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D.
To reduce weight
Solution
Cement acts as a binding agent that holds the aggregates together in concrete.
Correct Answer: B — To bind aggregates together
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Q. What is the purpose of the water-cement ratio in concrete?
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A.
To determine the color
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B.
To control the strength and durability
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C.
To increase the weight
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D.
To reduce the cost
Solution
The water-cement ratio is crucial for controlling the strength and durability of concrete.
Correct Answer: B — To control the strength and durability
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Q. Which type of brick is known for its high compressive strength?
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A.
Clay brick
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B.
Concrete brick
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C.
Fly ash brick
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D.
Sand-lime brick
Solution
Concrete bricks are known for their high compressive strength compared to other types of bricks.
Correct Answer: B — Concrete brick
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Q. Which type of cement is commonly used for general construction?
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A.
Portland cement
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B.
Rapid hardening cement
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C.
Sulphate resisting cement
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D.
White cement
Solution
Portland cement is the most commonly used type of cement for general construction.
Correct Answer: A — Portland cement
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