Q. What is the main advantage of using recycled asphalt pavement (RAP)?
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A.
Increased cost
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B.
Improved durability
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C.
Environmental sustainability
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D.
Higher weight
Solution
Using RAP promotes environmental sustainability by reducing waste and conserving natural resources.
Correct Answer:
C
— Environmental sustainability
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Q. What is the primary function of a subbase layer in pavement design?
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A.
To provide drainage
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B.
To enhance aesthetic appeal
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C.
To reduce noise
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D.
To support the surface layer
Solution
The subbase layer provides structural support to the surface layer and helps distribute loads to the subgrade.
Correct Answer:
D
— To support the surface layer
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Q. What is the primary purpose of asphalt in pavement materials?
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A.
To provide structural support
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B.
To enhance skid resistance
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C.
To bind aggregate particles together
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D.
To reduce noise levels
Solution
Asphalt acts as a binder that holds the aggregate particles together, providing cohesion and stability to the pavement.
Correct Answer:
C
— To bind aggregate particles together
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Q. What is the purpose of a pavement management system (PMS)?
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A.
To design new pavements
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B.
To monitor traffic flow
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C.
To assess pavement conditions and prioritize maintenance
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D.
To calculate material costs
Solution
A PMS is used to assess the condition of existing pavements and prioritize maintenance and rehabilitation efforts.
Correct Answer:
C
— To assess pavement conditions and prioritize maintenance
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Q. What is the significance of the California Bearing Ratio (CBR) test in pavement design?
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A.
It measures the thickness of asphalt layers
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B.
It evaluates the load-bearing capacity of subgrade soils
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C.
It determines the moisture content of aggregates
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D.
It assesses the skid resistance of pavement
Solution
The CBR test evaluates the load-bearing capacity of subgrade soils, which is critical for determining pavement thickness.
Correct Answer:
B
— It evaluates the load-bearing capacity of subgrade soils
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Q. Which material is commonly used for the surface layer of flexible pavements?
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A.
Concrete
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B.
Asphalt
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C.
Gravel
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D.
Brick
Solution
Asphalt is the most common material used for the surface layer of flexible pavements due to its flexibility and ease of maintenance.
Correct Answer:
B
— Asphalt
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Q. Which of the following is a common test for determining the strength of concrete pavement?
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A.
Marshall Test
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B.
Slump Test
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C.
Compression Test
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D.
Tensile Test
Solution
The Compression Test is commonly used to determine the compressive strength of concrete, which is crucial for pavement performance.
Correct Answer:
C
— Compression Test
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Q. Which of the following is NOT a type of pavement distress?
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A.
Cracking
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B.
Rutting
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C.
Potholes
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D.
Color fading
Solution
Color fading is not considered a type of pavement distress; it does not affect the structural integrity or performance of the pavement.
Correct Answer:
D
— Color fading
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Q. Which pavement design method considers traffic load, subgrade strength, and environmental conditions?
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A.
AASHTO Design Method
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B.
Empirical Design Method
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C.
Mechanistic-Empirical Design Method
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D.
Layer Coefficient Method
Solution
The Mechanistic-Empirical Design Method incorporates traffic loads, material properties, and environmental factors to design pavements.
Correct Answer:
C
— Mechanistic-Empirical Design Method
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Q. Which type of pavement is typically used for high-traffic areas due to its durability?
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A.
Flexible pavement
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B.
Rigid pavement
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C.
Composite pavement
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D.
Gravel pavement
Solution
Rigid pavement, made of concrete, is preferred for high-traffic areas due to its durability and load-bearing capacity.
Correct Answer:
B
— Rigid pavement
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