Which view is used when the true shape of a feature inclined to the principal planes is needed?

Which view is used when the true shape of a feature inclined to the principal planes is needed?

• A. Section view
• B. Auxiliary view
• C. Detail view
• D. Exploded view

Answer: (B)

When a feature lies at an angle to the main projection planes, you need an auxiliary view to reveal its true size and shape. An auxiliary view is created by projecting onto a plane that is oriented to be parallel to the inclined feature. By rotating the projection plane until it lies parallel to the feature and projecting orthogonally onto that plane, the feature appears without foreshortening, showing its true contour and dimensions. This is exactly what’s required when you need to see the true shape of shapes that aren’t aligned with the standard front, top, or side views. Other views serve different purposes—section views show internal features along a cutting plane, detail views magnify a small area but maintain the standard projection direction, and exploded views illustrate how parts fit in an assembly.

When a feature lies at an angle to the main projection planes, you need an auxiliary view to reveal its true size and shape. An auxiliary view is created by projecting onto a plane that is oriented to be parallel to the inclined feature. By rotating the projection plane until it lies parallel to the feature and projecting orthogonally onto that plane, the feature appears without foreshortening, showing its true contour and dimensions. This is exactly what’s required when you need to see the true shape of shapes that aren’t aligned with the standard front, top, or side views. Other views serve different purposes—section views show internal features along a cutting plane, detail views magnify a small area but maintain the standard projection direction, and exploded views illustrate how parts fit in an assembly.