UCEED flashcards

32 cards. Read the term and the definition here. The deck at the top of this page is optional.

UCEED Part A format

Computer-based objective section with MCQ and numerical-answer questions covering visualization, spatial reasoning, observation, design sensitivity, and analytical reasoning, scored with negative marking on incorrect multiple-choice responses.

UCEED Part B format

Pen-and-paper drawing and design section requiring sketches, a product or situation design solution, and short written reasoning; judged on idea, originality, and communication rather than artistic polish alone.

Mental rotation

Ability to imagine how a 2D or 3D object appears after rotation in space; tested by matching a target shape to rotated versions while rejecting mirrored or distorted distractors.

Cube net count

A cube has exactly 11 distinct edge-unfolded nets (hexomino layouts) that fold into a cube; recognizing valid versus invalid nets is a common spatial reasoning task.

Euler's polyhedron formula

For any convex polyhedron, vertices minus edges plus faces equals two (V - E + F = 2); useful for deducing unknown counts of edges, faces, or vertices.

Interior angle sum

The interior angles of a polygon with n sides sum to (n-2) x 180 degrees; each interior angle of a regular n-gon is that sum divided by n.

Polygon diagonals formula

A polygon with n vertices has n(n-3)/2 diagonals, since each vertex connects to all others except itself and its two neighbors, and each diagonal is counted twice.

Isometric vs orthographic

Orthographic projection shows separate front, top, and side views with true shapes; isometric projection shows three axes equally foreshortened, giving a single 3D-like pictorial view.

Mirror image reasoning

A mirror reverses the axis perpendicular to its surface, so left-right swaps for a vertical mirror while up-down stays fixed; water images invert vertically instead.

Affordance in design

A property of an object that signals how it should be used, such as a handle inviting pulling or a flat plate inviting pushing; mismatched affordances cause usability errors.

Figure-ground contrast

The perceived separation between a focal subject and its background; strong contrast in value, hue, or texture improves legibility and visual hierarchy in compositions and interfaces.

Additive vs subtractive color

RGB is additive: mixing light primaries yields white. CMYK is subtractive: mixing pigment primaries approaches black, which is why print uses cyan, magenta, yellow, and black inks.

Complementary color scheme

Two hues opposite each other on the color wheel, such as red and green; the pairing produces maximum contrast and vibrancy but can vibrate if used at equal saturation and area.

Golden ratio in design

A proportion of roughly 1:1.618 between parts, often applied to rectangles, layouts, and typographic scales to produce compositions perceived as balanced and harmonious.

Rule of thirds

A composition guideline dividing a frame into a 3x3 grid and placing key elements along the lines or at intersections to create dynamic, balanced visual interest.

Negative space

The empty or inactive area surrounding and between positive elements; deliberate use of negative space improves readability, focus, and perceived elegance in layout and logo design.

Ergonomics in product design

Designing objects to fit human body dimensions, reach, grip, and posture; anthropometric data such as percentile hand size determines handle diameter and control placement.

Universal design principles

Seven principles including equitable use, flexibility, simple intuitive use, perceptible information, tolerance for error, low physical effort, and appropriate size and space for approach and use.

Design thinking stages

A human-centered process commonly described as empathize, define, ideate, prototype, and test; it is iterative rather than strictly linear, with feedback loops between stages.

Syllogism validity

A deductive argument is valid when the conclusion necessarily follows from the premises; validity concerns form, not factual truth of the premises, so true premises are not required.

Number series reasoning

Identifying the rule generating a sequence, such as constant difference, constant ratio, alternating operations, squares, primes, or differences of differences, then extrapolating the next term.

Average speed formula

For equal distances traveled at speeds a and b, average speed is 2ab/(a+b), the harmonic mean, not the arithmetic mean (a+b)/2, which overestimates when speeds differ.

Percentage change

Percentage change equals (new minus old) divided by old, times 100; a rise of x percent followed by a fall of x percent leaves the value below the original by x squared over 100 percent.

Orthographic projection views

Standard engineering drawing uses front, top, and side views aligned on a sheet; first-angle places the top view below the front, third-angle places it above.

Fold-and-punch reasoning

A sheet folded and punched, then unfolded, shows holes mirrored across each fold line; counting reflections per fold determines the total number and positions of holes.

Storyboard in design

A sequence of sketched frames showing key moments of a user interaction or narrative, used to communicate flow, context, and emotion before detailed design or production.

Iterative prototyping value

Low-fidelity prototypes such as paper sketches are cheap and fast, so failures are discovered early; fidelity should rise only as uncertainty about the design decreases.

Typography hierarchy

Using size, weight, case, spacing, and color differences to rank information so readers scan the most important content first; typically limited to three or four distinct levels.

Sign vs symbol vs icon

A sign stands for something by convention or rule, a symbol by learned association, and an icon by visual resemblance; effective wayfinding mixes them with consistent meaning.

Product life cycle design

Considering material sourcing, manufacture, use, repair, and disposal during design; modularity and recyclable single materials improve end-of-life recovery and reduce environmental impact.

Observation question strategy

Compare the depicted object against expected real-world form and function, then select the option naming the specific anomaly, such as a misplaced spout or impossible hinge.

Time allocation in Part A

With roughly 80 or more questions in about three hours, plan under two minutes per question, skip and flag costly items, and return only after securing easier marks.