How many principal views are there in an orthographic projection?

How many principal views are there in an orthographic projection?

• A. 4
• B. 5
• C. 6
• D. 7

Answer: (C)

Orthographic projection communicates an object's true dimensions by looking at it from directions perpendicular to the projection planes. The three primary orientations align with the object's axes: a front view looks from the front, a top view looks from above, and side views look from the left or right. For complete representation, each of these orientations has an opposite view as well—the back view opposite the front, the bottom opposite the top, and the other side opposite the remaining side. This results in six principal views: front, back, top, bottom, left, and right. Using all six views lets you capture width, height, and depth without perspective distortion, so measurements and relationships between features are unambiguous.

Orthographic projection communicates an object's true dimensions by looking at it from directions perpendicular to the projection planes. The three primary orientations align with the object's axes: a front view looks from the front, a top view looks from above, and side views look from the left or right. For complete representation, each of these orientations has an opposite view as well—the back view opposite the front, the bottom opposite the top, and the other side opposite the remaining side. This results in six principal views: front, back, top, bottom, left, and right. Using all six views lets you capture width, height, and depth without perspective distortion, so measurements and relationships between features are unambiguous.