Difficulty: Easy
Correct Answer: Orthographic
Explanation:
Introduction / Context:
Orthographic projection is the backbone of engineering drawings. It decomposes a 3D object into multiple related 2D views where internal features may be indicated by hidden lines or revealed by sections, making the object appear “transparent” along the projection direction.
Given Data / Assumptions:
Concept / Approach:
Orthographic projection projects features perpendicularly onto planes. Any features behind others along the line of sight are still represented (as hidden lines) or can be explicitly revealed via sectional views, hence the “transparent” description.
Step-by-Step Solution:
Verification / Alternative check:
Compare a front view of a drilled block: holes not visible on the front face still appear as hidden circles/lines due to orthographic conventions.
Why Other Options Are Wrong:
Common Pitfalls:
Assuming “transparent” implies only section views; hidden-line conventions within orthographic views already convey occluded features.
Final Answer:
Orthographic
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