Starter quiz
Select the correct name for the drawing style in the image.- freeform
- isometric ✓
- technical
- engineering
- perspective
-
What is the name of the drawing style in the image below?- technical
- isometric
- perspective ✓
- engineering
- freeform
-
- A scale is a ratio of __________.
- correct size
- no size
- full size ✓
-
- What does the "S" in S.C.A.M.P.E.R stand for?
- Sell
- Substitute ✓
- Steal
- Save
-
- What is the scale needed to work at half the size of real life?
- 1:5
- 1:3
- 1:1
- 1:2 ✓
- 1:4
-
- A diameter dimension symbol is a __________.
- circle with an "R" next to it
- circle with a straight line going through it ✓
- circle with another circle next to it
- square with a straight line going through it
- circle with an arrow going through it
-
Exit quiz
- An orthographic projection represents a three-dimensional object in __________.
- one dimension
- two dimensions
- three dimensions ✓
- four dimensions
-
- Are orthographic projections completed before or after the manufacturing process?
- 'before' ✓
What is the name of this symbol used in orthographic projections?- 1st angle projection
- 2nd angle projection
- 3rd angle projection ✓
- 4th angle projection
- 5th angle projection
-
- Match the type of lines used on orthographic projections with their definition.
- dimension lines⇔lines with arrow heads with a numerical value that specifies size ✓
- construction lines⇔guidelines that help create the different projections ✓
- hidden detail lines⇔dashed lines that are not visible from the current viewpoint ✓
- centre lines⇔dashed lines to indicate the centre of holes and symmetrical objects ✓
Worksheet
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Presentation
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Video
Lesson Details
Key learning points
- Orthographic projections are used to communicate designs accurately.
- Orthographic projections are to scale, show multiple views and the dimensions of the design.
- Orthographic projections can be used to inform manufacturing.
Common misconception
Orthographic projections are completed after manufacture.
Orthographic projections are known as a working drawing. These are sent from a designer to a manufacturer before manufacturing to enable them to manufacture the product or component.
Keywords
Orthographic - represents a 3D object in 2D, where views are projected from the object's surfaces
3rd angle - a type of orthographic drawing
Construction lines - guidelines used in drawings
Dimensions - numerical values that specify the size
Scale - a ratio of full size
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