While laying out a multi-view drawing, which construction line helps accurately transfer geometry from the front view to the top and right-side views? Name the standard 45° helper line used to align corresponding features.

Difficulty: Easy

Correct Answer: miter

Explanation:


Introduction / Context:
Orthographic projection requires consistent alignment between views. A common manual drafting technique uses a 45° reference so distances from one view are accurately mapped to another view without recalculation.



Given Data / Assumptions:

  • Front view is known; we need to project to top and right-side views.
  • A 45° line is traditionally used to transfer widths/depths between views.
  • We compare object, hidden, dimension, and miter lines.


Concept / Approach:

A miter line is a 45° construction line placed at the corner where the front-to-top and top-to-right view transitions occur. By projecting horizontals and verticals to and from the miter, corresponding distances are mapped precisely between views.



Step-by-Step Solution:

Construct the top view above the front view.Draw a 45° miter at the corner between the two projection zones.Project lines from the top view to the miter, then reflect to create the right-side view.Therefore, select “miter.”


Verification / Alternative check:

Traditional board drafting and many CAD tutorials illustrate the 45° miter method for quick, accurate view transfer.


Why Other Options Are Wrong:

Object: represents visible edges of the part.

Hidden: shows obscured edges, not construction guides.

Dimension: communicates sizes; it is not a projection tool.


Common Pitfalls:

Forgetting that the miter line is a construction aid (thin line, not part of the final geometry). Do not leave it in final plots unless standards allow.


Final Answer:

miter

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