Plant Operator Selection System Test Plant Operator Selection System Abstract Pattern Recognition 3 — Questions and Answers
Question 1: A figure is rotated 90° clockwise at each step. After 4 rotations, the figure looks like it did at which step?
- Step 1 (original) (Correct answer)
- Step 2
- Step 3
- Step 5
Correct answer: Step 1 (original)
Four 90° clockwise rotations equal 360°, returning the figure to its original orientation.
Question 2: 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?
- Heptagon (7 sides) (Correct answer)
- Hexagon (6 sides)
- Pentagon (5 sides)
- Octagon (8 sides)
Correct answer: Heptagon (7 sides)
Top-left = 3 sides; adding 2 across and 2 down gives bottom-right = 3+2+2 = 7 sides, a heptagon.
Question 3: 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?
- Star (Correct answer)
- Filled circle
- Unfilled square
- Unfilled circle
Correct answer: Star
The cycle is filled circle, unfilled circle, star — repeating every three items, so item 6 is a star.
Question 4: 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?
- Upper-right (Correct answer)
- Upper-left
- Lower-right
- Lower-left
Correct answer: Upper-right
Two horizontal reflections cancel out, so Figure 3 is identical to Figure 1, pointing upper-right.
Question 5: In a shape analogy: Large circle is to small circle as large square is to ___.
- Small square (Correct answer)
- Large triangle
- Small circle
- Small triangle
Correct answer: Small square
The rule reduces size while keeping shape type, so large square becomes small square.
Question 6: A sequence of numbers of dots: 2, 4, 8, 16, ___. Which number comes next?
- 32 (Correct answer)
- 24
- 20
- 18
Correct answer: 32
Each term is doubled, so 16 × 2 = 32.
Question 7: 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?
- Square-triangle-circle (Correct answer)
- Triangle-circle-square
- Circle-triangle-square
- Square-circle-triangle
Correct answer: Square-triangle-circle
Each shape must appear exactly once per column, so the only valid order for row 3 is square-triangle-circle.
Plant Operator Selection System Test Plant Operator Selection System Abstract Pattern Recognition 3
A figure is rotated 90° clockwise at each step.
After 4 rotations, the figure looks like it did at which step?