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. A steel reinforcing bar is labeled '5 S 60'. What does '60' indicate?

    Answer: The minimum yield strength is 60,000 psi

    Grade 60 rebar has a minimum yield strength of 60,000 psi (60 ksi) per ASTM A 615 or A 706.

  2. Which test is used to evaluate the bond strength of a tack coat or prime coat in asphalt paving?

    Answer: Pull-off adhesion test

    The pull-off adhesion test measures the tensile bond strength between a pavement layer and the underlying surface or tack coat.

  3. What is the purpose of the Atterberg Limits test?

    Answer: To define the moisture content boundaries between soil consistency states

    Atterberg Limits (Liquid Limit, Plastic Limit, Shrinkage Limit) define the moisture contents at which fine-grained soils transition between solid, semi-solid, plastic, and liquid states.

  4. Concrete mix design specifies a maximum aggregate size of 1.5 inches. According to ACI 301, this size should not exceed:

    Answer: All of the above apply

    ACI 301 requires maximum aggregate size to satisfy all three criteria: 1/5 the narrowest form dimension, 3/4 the clear spacing between bars, and 3/4 the minimum clear cover.

  5. What does a 'Type III' cement designation indicate in concrete mix specifications?

    Answer: High early strength cement

    ASTM C 150 Type III is a high early strength Portland cement that achieves strength faster than Type I, often used in cold weather or early form removal situations.

  6. When a nuclear density gauge is used on a project, which safety requirement is mandatory?

    Answer: The operator must hold a current radiation safety license or certification

    Nuclear density gauges contain radioactive sources regulated by the NRC; operators must hold a current radiation safety license or certification from their state or the NRC.

  7. In a sieve analysis report, the 'fineness modulus' is calculated by:

    Answer: Summing cumulative percent retained on standard sieves and dividing by 100

    Fineness modulus = sum of cumulative percent retained on the No. 100, 50, 30, 16, 8, 4 sieves, and 3/8", 3/4", 1.5" sieves divided by 100.

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