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CAD Software & Tools Flashcards

6 cards from real 3D Product practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 6 CAD Software & Tools flashcards as text

  1. What is 'GD&T' (Geometric Dimensioning and Tolerancing) used for in product design?

    Answer: A standardized system for defining allowable variations in part geometry, size, and position on engineering drawings

    GD&T uses standardized symbols to specify allowable geometric tolerances for manufactured parts, ensuring fit, function, and interchangeability in production.

  2. What is the difference between 'extrude' and 'revolve' features in CAD?

    Answer: Extrude pushes a 2D sketch in a straight line to create 3D geometry; revolve spins a sketch around an axis

    An extrude feature extends a 2D profile along a linear path, while a revolve rotates the profile around a centerline axis to create rotationally symmetric forms.

  3. What is a 'loft' feature in 3D CAD modeling?

    Answer: A feature that creates a smooth transition between two or more different cross-sectional profiles

    The loft feature blends between two or more sketch profiles at different locations, creating smooth transitions and complex swept shapes like aircraft fuselages or bottle necks.

  4. What is 'parametric constraint' in CAD sketching?

    Answer: A rule applied to sketch geometry (like parallel, equal, or tangent) that controls how elements relate to each other

    Geometric constraints define relationships between sketch elements — tangency, perpendicularity, coincidence — ensuring the sketch updates predictably when dimensions change.

  5. What does 'PDM' (Product Data Management) software do in a design team workflow?

    Answer: Manages and versions CAD files, controls access, and tracks design changes across a team

    PDM systems like SolidWorks PDM or Windchill manage version control, access permissions, and revision tracking for CAD files in engineering teams.

  6. What is 'FEA' (Finite Element Analysis) used for in CAD software?

    Answer: Predicting how a part will deform, stress, or fail under real-world loads without physical prototypes

    FEA divides a model into thousands of small elements and calculates how each responds to loads, temperatures, or pressures, predicting stress concentrations and deflections.