Practice Test Geeks(CRC) Certified Residential Contractor Practice Test
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Materials & Equipment Knowledge Flashcards

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

Read the first 7 Materials & Equipment Knowledge flashcards as text

  1. What does the term 'engineered lumber' refer to in residential framing?

    Answer: Composite wood products manufactured using adhesives and wood fibers or veneers

    Engineered lumber includes products such as LVL, I-joists, and PSL that are manufactured by bonding wood fibers, strands, or veneers with adhesives to achieve superior strength and dimensional stability.

  2. What is the function of a drip edge installed at the eave of a roof?

    Answer: To direct water away from the fascia and into the gutter

    Drip edge metal flashing directs water runoff away from the fascia board and into the gutter, preventing water infiltration and wood rot.

  3. Which ASTM standard specifies requirements for hollow concrete masonry units used in residential construction?

    Answer: ASTM C90

    ASTM C90 is the standard specification for loadbearing and non-loadbearing concrete masonry units used in wall construction.

  4. A contractor notices that OSB roof sheathing has 'edge clips' (H-clips) specified in the plans. What is their primary purpose?

    Answer: To provide edge support and maintain panel spacing at unsupported edges

    H-clips (edge clips) support unsupported panel edges between rafters, preventing differential deflection and maintaining the required gap between panels.

  5. What is the standard width of a residential electrical service entrance conductors' clearance above a rooftop when the roof slope is less than 4:12?

    Answer: 8 feet

    The NEC requires service entrance conductors to maintain at least 8 feet of clearance above a roof with a slope less than 4 inches in 12 inches.

  6. Which type of window frame material provides the lowest thermal conductivity and best energy performance in cold climates?

    Answer: Vinyl or fiberglass

    Vinyl and fiberglass window frames have very low thermal conductivity compared to metals, making them the best performers in cold climates where heat loss is a concern.

  7. What is the purpose of 'weep holes' in a brick veneer wall?

    Answer: To drain water that collects at the base of the cavity and prevent moisture buildup

    Weep holes at the base of brick veneer walls allow water that enters the cavity to drain out through the flashing rather than accumulating and causing damage.