Practice Test Geeks(NETTCP) New England Transportation Technician Certification Program Practice Test
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Material Specifications Flashcards

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

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  1. Which test method is used to determine the flat and elongated particle content of coarse aggregate per ASTM D4791?

    Answer: A proportional caliper device measuring length, width, and thickness

    ASTM D4791 uses a proportional caliper to measure individual particle dimensions and classify particles as flat, elongated, or flat and elongated.

  2. In NETTCP-region DOT specifications, reclaimed asphalt pavement (RAP) used in hot mix asphalt is typically limited to what maximum percentage in surface courses?

    Answer: 25%

    Most New England DOTs limit RAP content to approximately 25% in surface courses to maintain mixture performance and workability.

  3. What property of bituminous tack coat material is specified to ensure adequate bonding between pavement layers?

    Answer: Residual asphalt application rate after emulsion breaks

    Tack coat specifications focus on the residual asphalt application rate (typically 0.02–0.10 gal/yd²) after the emulsion water evaporates and the binder breaks.

  4. Precast concrete drainage pipe must meet which ASTM standard for reinforced concrete culvert pipe?

    Answer: ASTM C76

    ASTM C76 is the standard specification for reinforced concrete culvert, storm drain, and sewer pipe used in highway drainage.

  5. For high-density polyethylene (HDPE) drainage pipe used in highway culverts, which AASHTO material specification applies?

    Answer: AASHTO M 294

    AASHTO M 294 covers corrugated polyethylene pipe for use in subsurface drainage and storm sewers under highways.

  6. What does the term 'gradation envelope' refer to in aggregate specifications?

    Answer: The range of allowable percent passing values at each sieve size

    A gradation envelope defines the upper and lower limits of percent passing at each sieve size, within which the aggregate must fall to be accepted.

  7. Which AASHTO specification covers the requirements for liquid anti-stripping additives used in asphalt mixtures to improve aggregate-binder adhesion?

    Answer: AASHTO M 316

    AASHTO M 316 specifies requirements for liquid anti-stripping agents (chemical adhesion promoters) added to asphalt binders to improve moisture resistance.