Plant Operator Selection System Abstract Pattern Recognition Flashcards

A figure is rotated 90° clockwise at each step. After 4 rotations, the figure looks like it did at which step?

Answer: Step 1 (original)

Four 90° clockwise rotations equal 360°, returning the figure to its original orientation.

In a 3×3 matrix, the number of sides of each shape increases by 1 across each row and by 1 down each column. The top-left shape is a triangle. What shape is in the bottom-right corner?

Answer: Heptagon (7 sides)

Top-left = 3 sides; adding 2 across and 2 down gives bottom-right = 3+2+2 = 7 sides, a heptagon.

A pattern alternates between a filled shape and an unfilled shape. Every third item is always a star. The sequence starts: filled circle, unfilled circle, star, filled circle, unfilled circle, ? What is item 6?

Answer: Star

The cycle is filled circle, unfilled circle, star — repeating every three items, so item 6 is a star.

Each figure in a series is a mirror image of the previous one (reflected horizontally). Figure 1 has an arrow pointing upper-right. Figure 3 points in which direction?

Answer: Upper-right

Two horizontal reflections cancel out, so Figure 3 is identical to Figure 1, pointing upper-right.

In a shape analogy: Large circle is to small circle as large square is to ___.

Answer: Small square

The rule reduces size while keeping shape type, so large square becomes small square.

A sequence of numbers of dots: 2, 4, 8, 16, ___. Which number comes next?

Answer: 32

Each term is doubled, so 16 × 2 = 32.

A 3×3 grid has shapes where each row contains exactly one triangle, one circle, and one square in varying order. If row 1 is triangle-circle-square and row 2 is circle-square-triangle, what is row 3?

Answer: Square-triangle-circle

Each shape must appear exactly once per column, so the only valid order for row 3 is square-triangle-circle.