CAD Software & Technology Applications Flashcards
7 cards from real CDT practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 CAD Software & Technology Applications flashcards as text
What is the function of the TRIM command in AutoCAD?
Answer: Cuts objects at a defined cutting edge boundary
The TRIM command removes the portion of an object that extends past a selected cutting edge, allowing precise cleanup of intersecting lines, arcs, and polylines.
In Revit and BIM workflows, what is a 'family'?
Answer: A parametric building component with defined geometry and properties
In Revit, a family is a parametric component — such as a door, window, or beam — that contains geometry definitions and adjustable parameters, allowing it to be placed and customized throughout a model.
What does 'NURBS' stand for and what is its significance in CAD?
Answer: Non-Uniform Rational B-Spline — a mathematical representation for smooth curves and surfaces
NURBS (Non-Uniform Rational B-Splines) are mathematical representations that precisely define smooth curves and complex free-form surfaces, widely used in automotive, aerospace, and industrial design CAD.
When preparing a CAD drawing for CNC machining, which output format is most commonly used to transmit toolpath instructions to the machine?
Answer: G-code (NC code)
G-code (also called NC code) is the industry-standard programming language that CNC machines read to control tool movements, spindle speeds, and feed rates during machining operations.
What is the purpose of 'tolerancing' in engineering drawings and CAD models?
Answer: Specifying the permissible variation in a dimension or geometric feature
Tolerancing specifies the acceptable range of variation for dimensions and geometric characteristics, ensuring parts fit and function correctly even with the inherent variation of manufacturing processes.
In CAD layer management best practices, what is the primary reason for assigning objects to specific layers rather than drawing everything on Layer 0?
Answer: Layers allow organized control of visibility, color, linetype, and plotting properties for different drawing elements
Assigning objects to organized layers allows drafters to control visibility, appearance, and plotting of related elements as groups, making complex drawings easier to manage, edit, and publish.
Which technology allows CAD users to interact with and inspect 3D models in an immersive virtual environment for design review?
Answer: Virtual Reality (VR) visualization
Virtual Reality (VR) technology allows designers and stakeholders to enter and navigate a 3D CAD model at human scale using headsets, enabling spatial design reviews and clash detection before construction.