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Blueprint Reading & Specifications 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 Blueprint Reading & Specifications flashcards as text
  1. On a residential site plan, the abbreviation 'BW' typically stands for:

    Answer: Bottom of wall

    BW on site plans and grading plans stands for 'Bottom of Wall,' used with TW (Top of Wall) to show retaining wall elevations.

  2. Which part of the CSI three-part specification format covers installation methods and workmanship standards?

    Answer: Part 3 – Execution

    Part 3 – Execution covers preparation, installation procedures, field quality control, and workmanship requirements for the specified work.

  3. What does the term 'rough opening' (R.O.) mean on residential blueprints?

    Answer: An unfinished structural opening sized to receive a door or window unit

    Rough opening is the framed structural hole — slightly larger than the door or window unit — that allows for shimming and leveling during installation.

  4. On a foundation plan, what does 'P.C.' stand for?

    Answer: Pre-cast concrete

    P.C. on foundation plans typically stands for pre-cast concrete, referring to factory-manufactured structural elements.

  5. A keynote system on blueprints uses numbers or letters to reference notes because it:

    Answer: Reduces drawing clutter while providing complete information in a legend

    Keynote systems place reference markers on the drawing and consolidate full descriptions in a legend, keeping drawings readable and uncluttered.

  6. When a specification says a product must meet ASTM standards, ASTM refers to:

    Answer: American Society for Testing and Materials

    ASTM International (formerly American Society for Testing and Materials) publishes voluntary consensus standards for materials, products, and testing methods.

  7. On a residential blueprint detail, 'SIM' noted next to a detail reference means:

    Answer: Similar — the detail is alike but not identical; verify differences

    SIM means 'similar' — the referenced detail is mostly applicable but the contractor must note any differences shown or called out at that location.