Sketching and Spatial Visualization

Drawn as if the object is directly in front of you, with a flat background hanging vertical behind it

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​Orthographic Projection

​Object Line

Definition: Represents visible edges, outlines, and the main features of an object. It is a solid line without interruptions.

​Hidden Line

Indicates edges or features that are not immediately visible from the current viewpoint. It is represented by a series of short dashes with gaps in between.

Center Line

Represents the centerline of a circle or the axis of symmetry in a symmetrical object. It typically consists of alternating long and short dashes.

​Dimension Line

Indicates the extent or size of an object.

​Let's review types of lines....

Multiple Choice

Which shape does this make?

Multiple Choice

What would this look like if turned 90 degrees clockwise?

Multiple Choice

Name the 3-D shape

• Cube

• Rectangular Prism

• Rectangular Pyramid

• Triangular Prism

Multiple Choice

What type of drawing is this?

• Planometric
• Isometric
• One-point perspective
• Two-point perspective

Multiple Choice

Which view shows the block from the TOP

• 2
• 3
• 4
• 5

Multiple Select

The 3 orthographic views that make up the home view are ____(choose all that apply)

• Top view

• Front view

• Rear view

• Right side view

• Bottom view

Multiple Choice

What will be the top view of the given isometric object?

Multiple Choice

Which is the correct front view of the figure provided?

Multiple Choice

Which is the correct right side view of the figure provided?

Multiple Choice

A line that is short and long dashes that indicate a circular feature on a part is _____?

• Object Line
• Hidden Line
• Construction Line
• Center Line

Multiple Choice

Which type of view shows a 2-dimensional representation of an object?

• Isopropyl

• Ornithology

• Orthographic

• Isometric

Multiple Choice

Which answer choice is rotated that same as the example?

• A

• B

• C

• D

Multiple Choice

If the Green is the top view and Red is the front, then what view is the Blue?

• Left Side
• Front
• Back
• Right Side

Multiple Choice

Which drawing below shows the Top View?

Multiple Choice

Which diagram below shows the right view of this object?

Multiple Choice

Recognize the view for the given isometric figure.

• Top view

• Right side view

• Left side view

Multiple Choice

Which view is the front face of the object?

• Top right
• Top left
• Bottom right
• Bottom left

Multiple Choice

A way of projecting a 3D object on a 2D plane by showing each side separately.

• Isometric projection
• Assembly drawings
• Orthographic projection
• Systems drawing

Multiple Choice

Which orthographic view is the arrow pointing to? Be sure to pay close attention to the direction of the arrow.

Multiple Choice

Which orthographic view is the arrow pointing to? Be sure to pay close attention to the direction of the arrow.

Multiple Choice

Which orthographic view is the arrow pointing to? Be sure to pay close attention to the direction of the arrow.

Multiple Choice

Which orthographic view is the arrow pointing to? Be sure to pay close attention to the direction of the arrow.

Multiple Choice

Letter "A" represents which type of Line ?

• Outline

• Center Line

• Construction Line

• Hidden Detail

Multiple Choice

Letter "B" represents which type of Line ?

• Outline

• Center Line

• Construction Line

• Hidden Detail

Multiple Choice

Letter "C" represents which type of Line ?

• Outline

• Extended Line

• Dimension Line

• Hidden Detail

Multiple Choice

Letter "F" represents which type of Line ?

• Outline

• Extended Line

• Dimension Line

• Hidden Detail

Multiple Choice

What Line-Type is this?

• center line

• dimension line

• extension line

• phantom line

Multiple Choice

What Line-Type is this?

• center line

• hidden line

• construction line

• phantom line

Multiple Select

Dimensions on engineering drawings are precise measurements of what is expected on the finished product or part you are creating on CAD.

• True

• False

• Unless the person building it changes the dimension

• They are rough estimates.

Multiple Choice

What angle(s) do you use to draw an Isometric drawing?

• 30/30 degrees

• 45 degrees

• 90 degrees

• 45/45 degrees

Multiple Choice

What type of view is shown?

• Hidden view
• Isometric view
• Orthographic multiview
• Perspective view

Multiple Choice

Which of the figures represents the side view of the solid?

Multiple Choice

Which is the top view of the solid?

Multiple Choice

What is the top view?

Multiple Choice

What type of Sketch is this

• Perspective

• Oblique

• Isometric

• Multi View

Multiple Choice

Is this an orthographic projection or an isometric sketch?

• orthographic

• isometric

Multiple Choice

What is the purpose of sketching?

• It can tell where and how the design will be used.

• Sketching can provide details of an idea and lots of information all at once.

• Sketching is appealing to people.

• Color can be added to a sketch to show texture and appearance.

Multiple Choice

Dashed lines that serve as guides while sketching or drawing.

• Construction Line

• Diameter

• Extension Line

• Hidden Line

Multiple Choice

A solid line used on a drawing to represent a side or feature of a part.

• Object Line

• Orthographic Projection (multiview)

• Plane

• Radius