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ASVAB · Structural Support

Which shape is generally considered the strongest and most stable for distributing weight and resisting deformation?

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Correct answer

A triangle

  1. A A circle
  2. B A triangle
  3. C A rectangle
  4. D A square

Why this is the answer

The TRIANGLE is generally the strongest, most stable shape for distributing weight and resisting deformation. ASVAB Mechanical Comprehension includes structural concepts. A triangle's rigid shape distributes force along its sides and cannot be deformed without changing the length of a side — making it inherently stable. This is why TRUSSES (bridges, roofs, towers, cranes) use triangular configurations. A square or rectangle can be 'racked' (deformed into a parallelogram) under load unless braced (often with a diagonal, creating triangles). The triangle's structural strength is commonly tested.
Source: ASVAB Mechanical Comprehension — Structural Strength

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About this topic: Structural Support

Structural support questions ask which beam, brace or support carries the most load, where a structure will fail, and how triangles, arches and cantilevers distribute weight. Think about where the force goes. This is one of 8 Mechanical Comprehension questions on structural support, each with a full explanation on a single study page.

New to this exam? Our ASVAB exam guide explains the format, scoring, and how to prepare.

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