Aggregate and Cement Testing - Real World Applications
Q. What is the effect of using too much water in concrete mixing?
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A.
Increases strength
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B.
Decreases workability
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C.
Reduces durability
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D.
Improves setting time
Solution
Using too much water in concrete mixing reduces durability and can lead to cracking and other structural issues.
Correct Answer: C — Reduces durability
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Q. What is the purpose of the compressive strength test on concrete?
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A.
To measure the density of concrete
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B.
To determine the maximum load concrete can withstand
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C.
To assess the setting time
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D.
To evaluate the thermal properties
Solution
The compressive strength test determines the maximum load that concrete can withstand, which is crucial for structural integrity.
Correct Answer: B — To determine the maximum load concrete can withstand
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Q. Which material is commonly used as a fine aggregate in concrete?
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A.
Gravel
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B.
Sand
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C.
Crushed stone
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D.
Cinder
Solution
Sand is commonly used as a fine aggregate in concrete, providing the necessary particle size for a workable mix.
Correct Answer: B — Sand
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