Which engineering drawing type displays a three-dimensional view with equal scale along three axes?

• A. Isometric
• B. Orthographic
• C. Sectional
• D. Exploded view

Answer: (A)

Isometric drawings show a true three-dimensional feel by keeping equal scale along all three principal axes. The object is drawn so the x, y, and z directions are foreshortened equally, with the three axes usually 120 degrees apart. This gives a single view where the front, top, and side are visible at once without perspective distortion, making measurements along any axis meaningful in the same way. Other drawing types focus on separate views, interior cross-sections, or exploded assemblies, rather than a single equal-scale 3D depiction.