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GATE 2021 AR – Question 45

Design and Graphics · Ergonomics, Ratio and proportion, Scales in design, Organization of space · 2 marks · Multiple choice

Match feet positions P, Q, R, S with stability descriptions 1 stable antero-posteriorly, 2 laterally stable, 3 fairly stable in all directions, 4 vertically stable, 5 unstable.

Diagram for GATE 2021 AR question 45
  1. P–5;Q–5;R–2;S–1
  2. P–5;Q–3;R–1;S–2
  3. P–1;Q–3;R–4;S–2
  4. P–4;Q–3;R–2;S–1

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Show answer and explanation

Correct answer: (B) P–5;Q–3;R–1;S–2

Explanation

The small base in P is comparatively unstable(5). Q provides a broad two-dimensional support base(3). Tandem stance R enlarges the front-to-back base(1), while S’s lateral spacing improves side-to-side stability(2). Thus B. The relevant quantity is the support polygon beneath the centre of mass.

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