Technical Drafting Terms Quiz

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Questions and Answers

What is an assembly drawing?

A drawing that shows how different parts of an object go together.

What defines an isometric projection?

An isometric projection is where the object is rotated around one or more of its axes to reveal multiple sides.

What is axonometric projection?

A type of orthographic projection used for creating a pictorial drawing where the lines of sight are perpendicular to the plane.

What is a cabinet drawing?

An oblique projection in mechanical drawing where dimensions parallel to the third axis are shortened by one half. Signup and view all the answers

What is a compass used for in drafting?

An instrument used when drawing arcs and circles. Signup and view all the answers

What is a cycloid?

The curve traced by a point on a circle as it rolls along a straight line without slipping. Signup and view all the answers

What does dimensioning involve?

The process of placing measurements in a drawing in the Metric or English system. Signup and view all the answers

What is an ellipse?

A plane curve surrounding two focal points such that the sum of the distances to the focal points is constant. Signup and view all the answers

What is mechanical drafting?

A process for making accurate drawings using special drawing tools and instruments. Signup and view all the answers

What is one-point perspective?

A drawing that has a single vanishing point on the horizon line. Signup and view all the answers

What is orthographic drawing?

A representation of an object in two or more views by projecting the outline into perpendicular planes. Signup and view all the answers

What is a protractor used for?

Determining gradations of degrees when measuring arcs and circles. Signup and view all the answers

What is a sketch?

A quickly executed freehand drawing that is not intended as a finished work. Signup and view all the answers

What characterizes three-point perspective?

Uses three sets of orthogonal lines and three vanishing points for drawing objects. Signup and view all the answers

What is trimetric projection?

A type of axonometric projection where the object is shown with all three of its principal axes tilted unequally. Signup and view all the answers

What is two-point perspective?

A type of linear perspective that uses two vanishing points on the horizon line. Signup and view all the answers

Study Notes

Definitions in Technical Drafting

Assembly Drawing: Illustrates how various parts of an object fit together.
Axonometric Projection: Pictorial representation where lines of sight are perpendicular to the projection plane; includes Isometric projection.
Cabinet Projection: Oblique projection where dimensions parallel to the third axis are reduced by half to reduce perception distortion.
Cavalier Projection: Oblique projection with projection lines at a 45° angle to the projection plane.
Compass: Tool used for drawing arcs and circles accurately.
Cycloid: Curve generated by a point on a circle rolling along a straight line without slipping.
Detailed Drawing: Focuses on a single component of a machine.
Diametric Projection: Displays a 3D cube with one face appearing smaller relative to the other two sides.
Dimensioning: Process of adding measurements to a drawing using either Metric or English systems.
Divider: Instrument for transferring measurements and dividing lines or arcs into equal parts.
Drawing: A graphic representation made of lines; can portray real objects, ideas, or design concepts.
Drawing Pencil: Essential tool for drafters used in creating drawings.
EDPS: Stands for Electronic Data Processing System, a computerized system for handling data.
Ellipse: Plane curve defined by two focal points, where the sum of distances from any point on the curve to the foci is constant.
English System: Measurement system based on feet and inches.
Metric System: Measurement system based on meters and centimeters.
Lettering: The art of drawing letters, distinct from simple writing.
Mechanical Drafting: A method for creating precise drawings using specialized tools.
Multi-View Projection: Technique for representing a 3D object using a series of standardized 2D views.
Oblique Projection: Creates 2D images of 3D objects through a simplified drafting method.
One-Point Perspective: Drawing technique with a single vanishing point; all parallel lines converge at this point.
Orthographic Drawing: Object depicted in multiple views through perpendicular projection on drawing planes.
Perspective Drawing: Technique to render solid objects in 2D, reflecting depth and spatial relationships.
Pictorial View: Shows an object revealing its three visible faces.
Protractor: Tool for measuring angles in degrees for arcs and circles.
Sketch: Quick, freehand drawing not meant as a final product.
Three-Point Perspective: Employs three sets of orthogonal lines and vanishing points to depict objects.
Trimetric Projection: Axonometric projection showing an object with unequal tilt of all three primary axes.
Two-Point Perspective: Linear perspective employing two vanishing points along a horizon line.
Linear Perspective: Technique using lines to create a realistic impression of space on a 2D surface.

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Description

Test your knowledge on essential technical drafting terms and concepts. This quiz covers terms like assembly drawing, axonometric projection, and isometric projection, providing a comprehensive understanding of mechanical drawing. Perfect for students and professionals in the field of drafting.