Properties of Concrete and Steel - Competitive Exam Level
Q. What is the effect of adding too much water to concrete mix?
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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
Adding too much water can lead to a weaker concrete mix and reduced durability.
Correct Answer: C — Reduces durability
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Q. What is the primary function 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 primary use of bricks in construction?
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A.
Insulation
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B.
Structural support
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C.
Aesthetic appeal
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D.
Waterproofing
Solution
Bricks are primarily used for structural support in walls and other load-bearing elements.
Correct Answer: B — Structural support
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Q. Which of the following is a common type of cement used in construction?
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A.
Portland cement
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B.
Gypsum cement
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C.
Lime cement
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D.
Fly ash cement
Solution
Portland cement is the most commonly used type of cement in construction.
Correct Answer: A — Portland cement
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Q. Which of the following is NOT a property of steel?
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A.
High tensile strength
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B.
Ductility
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C.
Low thermal conductivity
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D.
Corrosion resistance
Solution
Steel generally has high thermal conductivity, making it a poor insulator.
Correct Answer: C — Low thermal conductivity
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