In European drawings, which projection method is commonly used?

• A. First angle projection
• B. Second angle projection
• C. Third angle projection
• D. Isometric projection

Answer: (A)

European drawings typically use first angle projection. In this method, the object sits between the projection plane and the observer, so when the views are drawn, the layout places the front view in the center, the top view below it, and the left-side view on the right. This convention is standardized by ISO/DIN and has been the standard in Europe for a long time, which is why it’s the commonly used approach there. The alternate practice is third angle projection, which is standard in the United States and places the top view above the front view and the left view to the left, so it would not match European conventions. Isometric projection is a 3D pictorial view, not an orthographic projection method used for the arrangement of standard views, so it isn’t the correct choice for this question.