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Blueprint Reading & Interpretation Flashcards

7 cards from real CFB 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 & Interpretation flashcards as text

  1. What is the purpose of a 'general notes' section on a construction drawing sheet?

    Answer: To provide project-wide instructions and requirements that apply throughout the drawings

    General notes convey broad requirements — such as code references, material standards, and workmanship quality — that apply across the entire drawing set.

  2. On a structural drawing, 'SOG' refers to:

    Answer: Slab on Grade (a concrete floor slab poured directly on the ground)

    SOG stands for Slab on Grade, a concrete floor that rests directly on prepared subgrade without a suspended structural system.

  3. A field builder notices that two drawings in the same set show conflicting dimensions for the same wall. What is the correct course of action?

    Answer: Notify the project engineer or architect for clarification before proceeding

    Conflicting dimensions must be resolved by the design team before construction proceeds to avoid costly rework or structural errors.

  4. On a blueprint legend, a triangle with a number inside pointing to a drawing sheet typically represents:

    Answer: A section cut reference directing the viewer to a section drawing on that sheet

    Section flags (a triangle or circle with a number and sheet reference) key a cut line to the section drawing located on the referenced sheet.

  5. What does 'O.C.' (or 'o.c.') mean when used in a framing specification such as '16" O.C.'?

    Answer: On Center — the distance from the center of one member to the center of the next

    'On Center' specifies the repetitive spacing of framing members measured from the centerline of one to the centerline of the adjacent one.

  6. A drawing with the title 'Reflected Ceiling Plan' shows:

    Answer: The ceiling layout as if the floor were a mirror reflecting it — showing lights, HVAC diffusers, and tiles

    A reflected ceiling plan (RCP) shows the ceiling layout from below, as if a mirror on the floor reflects it upward, including lighting, diffusers, and grid patterns.

  7. On a civil site grading plan, the notation 'FF Elev. 102.50' most likely means:

    Answer: The finished floor elevation of the structure is 102.50 feet above datum

    'FF Elev.' designates the finished floor elevation — the precise height of the completed interior floor relative to the project datum or sea level.