Practice Test Geeks(CPII) Certified Public Infrastructure Inspector Practice Test
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Material Testing Flashcards

7 cards from real CPII practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 7 Material Testing flashcards as text

  1. What does the Los Angeles Abrasion test measure for aggregates?

    Answer: Resistance to degradation by abrasion and impact

    The LA Abrasion test measures the resistance of coarse aggregate to degradation by abrasion and impact using a rotating steel drum with steel spheres.

  2. A concrete cylinder fails at 3,800 psi at 28 days when the specified strength is 4,000 psi. What is the appropriate inspector action?

    Answer: Document the results and notify the engineer of record

    The inspector must document the failing results and notify the engineer of record, who will determine if further investigation or remediation is required.

  3. Which ASTM standard governs the Standard Test Method for Penetration of Bituminous Materials?

    Answer: ASTM D 5

    ASTM D 5 is the standard test method for penetration of bituminous materials, measuring asphalt consistency by needle penetration depth.

  4. When testing soil for Proctor density, what does the term 'optimum moisture content' refer to?

    Answer: The moisture content that achieves the maximum dry density

    Optimum moisture content is the water content at which a given compactive effort produces the maximum dry unit weight of a soil.

  5. A Marshall stability test is primarily used to evaluate which type of construction material?

    Answer: Hot mix asphalt pavement

    The Marshall stability test evaluates the load-carrying capacity and flow characteristics of compacted hot mix asphalt specimens.

  6. What is the purpose of performing a flat and elongated particle test on coarse aggregate?

    Answer: To measure the percentage of particles exceeding shape ratio limits

    Flat and elongated particle tests identify the percentage of aggregate particles whose longest dimension exceeds a specified ratio to the shortest dimension, as such particles can reduce pavement performance.

  7. Which field test is used to estimate the in-place density of asphalt pavement without destructive sampling?

    Answer: Nuclear density gauge

    The nuclear density gauge uses gamma radiation to non-destructively measure the in-place density and moisture content of compacted asphalt or soil.

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