SME
Engineering Graphics & CAD · Problem type
First-angle or third-angle projection
Use this for “The top view is drawn below the front view. Is this drawing first angle or third angle?”
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Which projection puts the view there?
Tap a card, then tap its group.
Find the front view, then ask whether each other view sits on the side it was seen from.
Assumptions
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Third angle (US): the part sits behind the picture plane, so each view goes on the side it was seen from.
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First angle (ISO): the part sits in front of the plane, so each view goes on the opposite side.
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