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Extremadura PAU Design (Diseño) study materials
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Extremadura PAU Design (Diseño) practice questions

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Question 1Design: visual communication, products, space and tested project decisions

What is the primary objective of ergonomics in the design of products and systems?

  1. To adapt objects, tasks, and environments to the physical and cognitive capabilities of users. Correct answer.
  2. To minimize production costs by eliminating decorative and structural elements.
  3. To maximize visual ornamentation regardless of user comfort or physical safety.
  4. To standardize artistic expression according to academic rules of fine arts.

Explanation

Ergonomics (or human factors) focuses on optimizing human well-being and overall system performance by designing tools, products, and environments that fit the anatomical, physiological, and psychological characteristics of users.

Question 2Design: visual communication, products, space and tested project decisions

Which of the following best defines 'bionics' (bionike) as applied to design methodology?

  1. The study of biological systems and natural structures to derive solutions for technical and design problems. Correct answer.
  2. The direct digital printing of biological organisms into synthetic materials.
  3. The historical analysis of ancient organic architecture in classical Greece.
  4. The practice of painting realistic animal portraits onto consumer electronics.

Explanation

Bionics (or biomimicry) analyzes structures, functions, mechanisms, and efficiency principles found in nature to inspire innovative solutions in industrial design, architecture, and engineering.

Question 3Design: visual communication, products, space and tested project decisions

What is typically the initial stage of a systematic design process?

  1. Problem definition and receipt/analysis of the design brief. Correct answer.
  2. Mass production tooling and factory setup.
  3. Final surface finishing and packaging distribution.
  4. Creating full-scale high-fidelity working prototypes.

Explanation

The design methodology begins with defining the problem, understanding user needs, and analyzing the design brief, which outlines project goals, constraints, target audience, and scope before ideation occurs.

Question 4Design: visual communication, products, space and tested project decisions

What is the study of anthropometry primarily concerned with in product design?

  1. Measuring the physical dimensions and proportions of the human body to establish ergonomic sizing. Correct answer.
  2. Calculating the structural load-bearing capacity of steel beams.
  3. Evaluating color perception under different environmental lighting sources.
  4. Measuring the acoustic resonance of musical instrument chambers.

Explanation

Anthropometry deals with the quantitative measurement of human body sizes, reaches, clearances, and body mass distributions to ensure objects like chairs, desks, and handheld devices comfortably fit human dimensions.

Question 5Design: visual communication, products, space and tested project decisions

How does cognitive ergonomics differ from physical ergonomics?

  1. Cognitive ergonomics focuses on mental processes like perception, memory, and information processing, whereas physical ergonomics deals with bodily posture and repetitive strains. Correct answer.
  2. Cognitive ergonomics only applies to furniture design, while physical ergonomics applies to software.
  3. Cognitive ergonomics measures physical muscle strength, while physical ergonomics measures emotional intelligence.
  4. Cognitive ergonomics deals exclusively with chemical toxicology, while physical ergonomics handles electronics.

Explanation

Physical ergonomics addresses physical activity, posture, movement, and anatomy. Cognitive ergonomics focuses on mental workload, decision-making, human-computer interaction, and interface comprehension.

Question 6Design: visual communication, products, space and tested project decisions

Which famous modernist maxim was coined by architect Louis Sullivan and championed by early 20th-century functionalist designers?

  1. Form follows function. Correct answer.
  2. Less is a bore.
  3. Ornament is crime.
  4. God is in the details.

Explanation

'Form follows function' states that the shape and aesthetic of a building or object should primarily be derived from its intended purpose and functional requirements.

Question 7Design: visual communication, products, space and tested project decisions

Why are low-fidelity prototypes (such as cardboard models or paper wireframes) used early in the design methodology?

  1. They allow rapid, inexpensive testing and exploration of concepts before committing to costly production tooling. Correct answer.
  2. They serve as final products delivered directly to end retail consumers.
  3. They replace the need for user testing and market research.
  4. They guarantee that electrical components will pass high-voltage regulatory certification.

Explanation

Low-fidelity prototypes facilitate quick feedback, rapid iteration, and risk reduction early in the design process without high material or manufacturing investments.

Question 8Design: visual communication, products, space and tested project decisions

What key information should a comprehensive design brief contain?

  1. Project objectives, target audience, technical specifications, budget constraints, and key deliverables. Correct answer.
  2. Complete assembly line wage breakdowns for offshore factory workers.
  3. Detailed patents of all competitor products released in the last 50 years.
  4. Personal biographical histories of all company shareholders.

Explanation

A design brief acts as a foundational roadmap defining goals, target demographics, functional requirements, schedule, budget, and constraints for the design team.

Question 9Design: visual communication, products, space and tested project decisions

What is the defining characteristic of User-Centered Design (UCD)?

  1. Placing user needs, behaviors, and feedback at every stage of the design and development process. Correct answer.
  2. Designing exclusively according to the personal artistic taste of the lead designer.
  3. Focusing solely on minimizing raw material costs regardless of user experience.
  4. Relying automated AI algorithms to bypass user feedback entirely.

Explanation

User-Centered Design is an iterative framework in which designers assess and involve users throughout research, design, prototyping, and evaluation to create usable and satisfying products.

Question 10Design: visual communication, products, space and tested project decisions

In Don Norman's design principles, what does the term 'affordance' refer to?

  1. The perceived and actual properties of an object that suggest how it can be used. Correct answer.
  2. The financial affordability and retail discount rate of a product.
  3. The legal copyright protection granted to an industrial blueprint.
  4. The chemical resistance of plastic surfaces against acidic solvent corrosion.

Explanation

Affordance refers to the visual or physical clues that communicate actionable possibilities to a user-for instance, a flat plate on a door affords pushing, while a handle affords pulling.

Question 11Design: visual communication, products, space and tested project decisions

In product semantics, what is the 'symbolic/communicative function' of an object?

  1. The meaning, cultural values, status, or identity that the object conveys to society. Correct answer.
  2. The mechanical linkage ratio between gears in its internal motor.
  3. The electrical resistance measured across its copper wiring.
  4. The thermodynamic efficiency of its heat dissipation fins.

Explanation

Product semantics divides object functions into practical (utility), aesthetic (sensory attraction), and symbolic (meaning, status, lifestyle, and cultural expression).

Question 12Design: visual communication, products, space and tested project decisions

Which principle is fundamental to Universal Design (Design for All)?

  1. Creating products and environments usable by all people to the greatest extent possible without need for adaptation. Correct answer.
  2. Designing exclusively for young adults with above-average physical strength.
  3. Customizing each single item individually at high bespoke prices for elite clients.
  4. Restricting access to public spaces to individuals meeting specific physical height criteria.

Explanation

Universal Design aims to produce products, services, and built environments that are inherently accessible to people with diverse abilities, ages, and backgrounds.

Question 13Design: visual communication, products, space and tested project decisions

What is the purpose of a Morphological Analysis (Zwicky Box) matrix during creative ideation?

  1. To systematically break down a problem into parameters and combine options to discover novel design configurations. Correct answer.
  2. To calculate the precise structural stress limits of wood joints under shear tension.
  3. To convert 2D raster photographs into vector paths automatically.
  4. To negotiate lower freight shipping tariffs with international logistics carriers.

Explanation

Morphological analysis breaks a product into key parameters (e.g., power source, shape, material) and lists variations for each to systematically generate new concept combinations.

Question 14Design: visual communication, products, space and tested project decisions

Honeycomb sandwich panel design in industrial manufacturing is a classic application of bionics inspired by which natural structure?

  1. Bee beehives, which optimize space and structural strength with minimal material weight. Correct answer.
  2. Spider webs, which maximize electrical conductivity under water.
  3. Fish scales, which block ultrasonic sound waves.
  4. Tree bark, which reflects ultraviolet radiation to lower temperatures.

Explanation

Hexagonal honeycomb structures in nature provide maximum structural stiffness and compression resistance with minimal material consumption, leading to lightweight aerospace and furniture panel design.

Question 15Design: visual communication, products, space and tested project decisions

In ergonomic anthropometry, why is the 5th to 95th percentile rule typically applied when setting clearance and reach dimensions?

  1. To accommodate 90% of the target population by designing clearances for the 95th percentile and reaches for the 5th percentile. Correct answer.
  2. To ensure that only 5% of all manufactured products pass quality control inspection.
  3. To guarantee that prices stay within 5% to 95% of standard retail benchmarks.
  4. To limit manufacturing waste to exactly 5% of raw material inputs.

Explanation

Designing door heights or legroom (clearance) for the 95th percentile tall user prevents head bumps, while placing control buttons (reach) for the 5th percentile short user ensures accessibility for 90% of the user population.

Question 16Design: visual communication, products, space and tested project decisions

According to design theorist Offenbach School of Design semantics, what comprises the practical-functional dimension of an object?

  1. The physical-technical aspects that enable the object to fulfill its mechanical, physiological, and operational task. Correct answer.
  2. The artistic reputation of the designer in international auction houses.
  3. The nostalgic memory connected to the object's brand heritage.
  4. The typographic font selected for its instructional user manual.

Explanation

The practical-functional dimension encompasses utility, mechanical performance, safety, and physical ergonomics that allow an object to perform its intended job.

Question 17Design: visual communication, products, space and tested project decisions

What distinguishes a Heuristic Evaluation from Usability Testing?

  1. Heuristic evaluation is conducted by usability experts inspecting an interface against established principles, whereas usability testing observes actual end users completing tasks. Correct answer.
  2. Heuristic evaluation involves lab chemistry tests, while usability testing uses online surveys.
  3. Heuristic evaluation is performed after mass distribution, while usability testing is done before ideation.
  4. Heuristic evaluation measures material tensile strength, while usability testing measures shipping weight.

Explanation

Heuristic evaluation relies on expert reviewers evaluating designs against recognized usability rules (e.g., Nielsen's 10 heuristics), whereas usability testing collects empirical behavioral data from real target users.

Question 18Design: visual communication, products, space and tested project decisions

What is the correct order of the five stages in the Design Thinking model developed by the d.school at Stanford?

  1. Empathize → Define → Ideate → Prototype → Test Correct answer.
  2. Prototype → Empathize → Test → Ideate → Define
  3. Ideate → Test → Define → Prototype → Empathize
  4. Define → Prototype → Empathize → Test → Ideate

Explanation

The standard Stanford d.school Design Thinking framework moves sequentially (and iteratively) through Empathize (user research), Define (problem statement), Ideate (brainstorming), Prototype (building models), and Test (gathering feedback).

Question 19Design: visual communication, products, space and tested project decisions

In Donald Norman's theory of Emotional Design, what are the three levels of processing that influence user reaction to a product?

  1. Visceral level, Behavioral level, and Reflective level. Correct answer.
  2. Primary level, Secondary level, and Tertiary level.
  3. Acoustic level, Thermal level, and Mechanical level.
  4. Graphic level, Industrial level, and Architectural level.

Explanation

Norman's Emotional Design identifies three levels: Visceral (immediate sensory/aesthetic reaction), Behavioral (experience of function and usability), and Reflective (personal identity, self-image, and memory).

Question 20Design: visual communication, products, space and tested project decisions

How is Life Cycle Assessment (LCA) integrated into sustainable design methodology?

  1. It quantifies environmental impacts across all stages from raw material extraction through manufacturing, transport, use, and disposal. Correct answer.
  2. It calculates the annual financial return on investment for venture capital investors.
  3. It measures the speed at which software updates can be downloaded by smartphones.
  4. It evaluates the acoustic volume of industrial machinery during factory shifts.

Explanation

Life Cycle Assessment (LCA) is a scientific methodology used to evaluate the environmental burdens associated with a product system by identifying energy/materials used and wastes released into the environment.

Question 21Design: visual communication, products, space and tested project decisions

In typographic anatomy, what does the term 'x-height' refer to?

  1. The height of lowercase letters excluding ascenders and descenders (typically measured using the letter 'x'). Correct answer.
  2. The total height of the paper sheet on which text is printed.
  3. The distance between two consecutive lines of body text.
  4. The width of the widest uppercase letter in a typeface family.

Explanation

The x-height represents the distance between the baseline and the mean line of lowercase letters without ascenders (like 'h' or 'b') or descenders (like 'p' or 'g'). It strongly influences perceived font size and legibility.

Question 22Design: visual communication, products, space and tested project decisions

What is the operational difference between 'kerning' and 'tracking' in digital typography?

  1. Kerning adjusts the space between specific pairs of letters, while tracking adjusts letter-spacing uniformly across a block of text. Correct answer.
  2. Kerning changes font color, while tracking changes font weight from light to bold.
  3. Kerning converts text into 3D objects, while tracking aligns text to the right margin.
  4. Kerning increases baseline angle, while tracking decreases line leading.

Explanation

Kerning selectively adjusts whitespace between specific character pairs (e.g., 'AV' or 'WA') to achieve visual balance, whereas tracking applies uniform spacing across an entire range of selected characters.

Question 23Design: visual communication, products, space and tested project decisions

What is the main function of a grid system (retícula) in visual layout design?

  1. To provide a underlying structural framework that organizes visual elements consistently across pages. Correct answer.
  2. To automatically correct spelling and grammar errors in copy text.
  3. To restrict designers to using only primary colors.
  4. To generate raster image resolution automatically.

Explanation

A grid system establishes spatial proportions, margins, columns, and gutters, enabling structured, harmonious, and consistent alignment of text and imagery.

Question 24Design: visual communication, products, space and tested project decisions

What is the primary purpose of a Corporate Visual Identity Manual (Brand Guidelines)?

  1. To define rules for logo usage, color codes, typography, and applications to ensure brand consistency. Correct answer.
  2. To file state tax returns for corporate commercial sales.
  3. To outline labor safety regulations for warehouse employees.
  4. To list retail prices for all company products.

Explanation

A corporate identity manual establishes standard specifications (clear space, color specifications in CMYK/RGB/Pantone, fonts, incorrect uses) so that all brand touchpoints remain coherent.

Question 25Design: visual communication, products, space and tested project decisions

Which typographic category is characterized by decorative strokes attached to the ends of letter stems?

  1. Serif (Roman) Correct answer.
  2. Sans-Serif (Grotesque)
  3. Monospaced
  4. Geometric Script

Explanation

Serif typefaces (such as Times New Roman or Garamond) feature small decorative extensions or feet at the ends of character strokes, traditional in printed books and newspapers.

Question 26Design: visual communication, products, space and tested project decisions

Which color model is used for physical four-color process printing?

  1. CMYK (Cyan, Magenta, Yellow, Key/Black) Correct answer.
  2. RGB (Red, Green, Blue)
  3. HSL (Hue, Saturation, Lightness)
  4. Lab (Lightness, a-axis, b-axis)

Explanation

CMYK is a subtractive color model used in color printing, where inks absorb light reflected from paper to reproduce images.

Question 27Design: visual communication, products, space and tested project decisions

What is the key advantage of vector graphics over raster (bitmap) graphics in graphic design?

  1. Vector graphics can be scaled infinitely without loss of sharpness or resolution because they are defined by mathematical formulas. Correct answer.
  2. Vector graphics capture continuous photographic detail better than high-resolution camera RAW files.
  3. Vector graphics contain built-in physical paper textures.
  4. Vector graphics eliminate the need for color management profiles.

Explanation

Vector graphics use geometric primitives (points, lines, curves) based on mathematical equations, allowing crisp scaling to any size, unlike pixel-grid raster graphics which pixelate when enlarged.

Question 28Design: visual communication, products, space and tested project decisions

In visual identity terminology, what is an 'isotype' (imagotipo / símbolo)?

  1. The standalone symbolic mark or icon of a brand without accompanying text. Correct answer.
  2. The full registered legal company name in paragraph format.
  3. The radio audio jingle played during commercial breaks.
  4. The cardboard packaging box used for freight export.

Explanation

An isotype (or brandmark/symbol) is the purely graphic non-textual icon or symbol representing a brand (such as Apple's apple or Nike's swoosh).

Question 29Design: visual communication, products, space and tested project decisions

Which Gestalt principle explains how the human eye perceives an incomplete shape or outline as a complete whole by mentally filling in missing gaps?

  1. Closure (Cierre) Correct answer.
  2. Proximity (Proximidad)
  3. Similarity (Semejanza)
  4. Symmetry (Simetría)

Explanation

The Gestalt law of closure states that human visual perception automatically seeks completion, mentally closing open shapes or disconnected lines to perceive unified forms (e.g., the WWF panda logo).

Question 30Design: visual communication, products, space and tested project decisions

How is the 'Rule of Thirds' applied to visual composition in graphic design and photography?

  1. The canvas is divided into a 3x3 grid with nine equal rectangles, and key visual subjects are positioned along lines or intersection points. Correct answer.
  2. The page is split into three equal horizontal bands using primary colors exclusively.
  3. The graphic layout must contain exactly three lines of text per section.
  4. Three separate designers must approve the artwork before printing.

Explanation

The Rule of Thirds places a 3x3 grid over an image, guiding placement of points of interest at grid lines and four intersection points to create dynamic, balanced compositions.

Question 31Design: visual communication, products, space and tested project decisions

What are the four core functions of packaging design?

  1. Protection/preservation, containment, logistics/transportation, and communication/marketing. Correct answer.
  2. Aerodynamics, sound insulation, waterproofing, and high-voltage resistance.
  3. Thermal combustion, chemical synthesis, structural welding, and excavation.
  4. Monetary currency conversion, taxation, intellectual property licensing, and auditing.

Explanation

Packaging serves technical needs (protecting product, containing contents, facilitating shipping and handling) and communicative needs (brand identity, consumer info, shelf appeal).

Question 32Design: visual communication, products, space and tested project decisions

What distinguishes signage design (señalética) from environmental decoration?

  1. Signage is an informational navigation system designed to guide people through physical spaces efficiently and safely using standardized pictograms and hierarchy. Correct answer.
  2. Signage uses decorative wallpaper pattern fills to obscure structural columns.
  3. Signage focuses exclusively on displaying abstract oil paintings in museum lobbies.
  4. Signage relies on low-contrast pastel colors to conceal emergency exit paths.

Explanation

Signage (señalética) is a functional visual communication discipline aimed at orienting and guiding human traffic through public, commercial, or urban spaces using clear, accessible, and legible signals.

Question 33Design: visual communication, products, space and tested project decisions

In poster design (cartelismo), what is visual hierarchy?

  1. The deliberate arrangement of visual elements to guide the viewer's eye in order of importance. Correct answer.
  2. The strict chronological ranking of graphic artists by age.
  3. The alphabetical sorting of all words printed on the poster.
  4. The physical weight of the paper stock measured in grams per square meter.

Explanation

Visual hierarchy uses size, contrast, color, weight, and layout placement to direct viewer attention first to the focal point (headline/main image), then to subheadings, and finally to detailed body text.

Question 34Design: visual communication, products, space and tested project decisions

According to Johannes Itten's color theory, what is 'contrast of hue' (contraste de tono)?

  1. The contrast created by juxtaposing pure, undiluted colors at their highest saturation. Correct answer.
  2. The contrast created between light values (white) and dark values (black).
  3. The contrast between warm colors (red-orange) and cool colors (blue-green).
  4. The contrast between a saturated color and a dull grey of equal lightness.

Explanation

Contrast of hue (or color-in-itself) is generated by placing unadulterated primary and secondary colors side-by-side (e.g., yellow/red/blue), creating vibrant visual energy.

Question 35Design: visual communication, products, space and tested project decisions

What does 'macrotypography' focus on within page layout?

  1. The overall arrangement of text blocks, margins, columns, headlines, and spatial relationships across the page. Correct answer.
  2. The minute microscopic details of serif bracket curvatures and ink traps.
  3. The chemical composition of offset printing inks.
  4. The physical weight of metallic movable lead type.

Explanation

Macrotypography addresses layout design as a whole-the visual structure, text distribution, column architecture, and page hierarchy, whereas microtypography focuses on individual letterforms, kerning, and word spacing.

Question 36Design: visual communication, products, space and tested project decisions

What occurs when the 'leading' (interlineado) of body text is set significantly smaller than the font point size?

  1. Ascenders and descenders of adjacent lines collide, severely degrading legibility. Correct answer.
  2. The text automatically converts into vector outlines.
  3. The printing press automatically increases cyan ink density.
  4. The page margin expands outwards proportionally.

Explanation

Leading is the vertical distance between baselines of text. Setting negative or extremely tight leading causes descenders from upper lines (e.g., 'p', 'g') to overlap ascenders from lower lines (e.g., 'b', 'h'), rendering text unreadable.

Question 37Design: visual communication, products, space and tested project decisions

Why is a 'bleed' area (sangrado / demasía) added to digital artwork prior to professional commercial printing?

  1. To extend background elements beyond the trim line, ensuring no unprinted white borders appear if mechanical paper trimming fluctuates slightly. Correct answer.
  2. To allow excess ink to evaporate during thermal oven curing.
  3. To embed digital copyright metadata into hidden paper watermarks.
  4. To reduce overall file size for faster email transmission.

Explanation

Commercial guillotines have slight alignment tolerances (+/- 1-2 mm). Extending artwork into a 3 mm bleed zone past the crop marks ensures seamless edge-to-edge printing.

Question 38Design: visual communication, products, space and tested project decisions

In structural packaging prepress, what is a 'dieline' (trazado de troquel)?

  1. A 2D vector drawing showing fold lines, cut lines, bleed boundaries, and glue flaps for package cutting and creasing. Correct answer.
  2. A line graph depicting monthly retail sales volume of boxed goods.
  3. A laser barcode printed on shipping pallets for warehouse tracking.
  4. A chemical indicator line that changes color when food spoils.

Explanation

A dieline is a flat template used in packaging design that specifies exact cut lines (solid), fold/crease lines (dashed), bleed zones, and glue tabs for steel die manufacturing.

Question 39Design: visual communication, products, space and tested project decisions

What is the distinction between 'legibility' and 'readability' in typographic design?

  1. Legibility refers to how easily individual letterforms can be distinguished, whereas readability refers to how easily blocks of text can be read in sequence. Correct answer.
  2. Legibility applies only to spoken audiobooks, while readability applies to braille.
  3. Legibility measures paper ink absorption, while readability measures binding glue strength.
  4. Legibility is regulated by copyright law, while readability is regulated by customs tariffs.

Explanation

Legibility is a function of typeface design (distinguishing an 'O' from a 'Q' or 'C'). Readability is a function of typesetting (line length, leading, tracking, hierarchy, and contrast across body copy).

Question 40Design: visual communication, products, space and tested project decisions

What characterizes a 'responsive/dynamic visual identity system'?

  1. A brand system where logotypes and visual assets adapt fluidly in complexity and layout depending on display scale and media context. Correct answer.
  2. A static logo that must never be altered or resized under any circumstances.
  3. A logo printed exclusively with temperature-sensitive mood ring inks.
  4. A visual identity that changes color randomly every 5 seconds without design rules.

Explanation

Responsive brand systems define modular variations of logos (from complete master logos down to simplified monograms) so brand recognition remains intact across formats from tiny smartwatch screens to billboard banners.

Question 41Design: visual communication, products, space and tested project decisions

What is a primary operational difference between thermoplastics and thermosetting plastics (thermosets)?

  1. Thermoplastics can be melted and remolded repeatedly when heated, whereas thermosets undergo irreversible chemical cross-linking and cannot be remelted. Correct answer.
  2. Thermoplastics are always natural organic woods, while thermosets are metals.
  3. Thermoplastics conduct high electricity, while thermosets are soluble in pure water.
  4. Thermoplastics cannot be recycled, whereas thermosets melt at room temperature.

Explanation

Thermoplastics (e.g., Polypropylene, ABS) soften upon heating and solidify upon cooling repeatedly. Thermosets (e.g., Epoxy, Bakelite) form cross-linked polymer networks upon curing, decomposing rather than melting when reheated.

Question 42Design: visual communication, products, space and tested project decisions

What is the primary advantage of modular design in industrial furniture systems?

  1. It allows standardized components to be reconfigured into multiple functional arrangements to suit different user spaces. Correct answer.
  2. It requires custom hand-carving for every individual component produced.
  3. It permanently welds all parts together so they can never be disassembled.
  4. It eliminates the use of geometric shapes in product design.

Explanation

Modular design uses standardized interchangeable units (modules) that users or manufacturers can combine, expand, or replace easily, lowering manufacturing costs and increasing product adaptability.

Question 43Design: visual communication, products, space and tested project decisions

What is the primary goal of Eco-design (Sustainable Product Design)?

  1. To minimize negative environmental impacts across the entire product lifecycle without compromising functional quality. Correct answer.
  2. To increase single-use plastic consumption in consumer packaging.
  3. To maximize non-recyclable electronic waste generation.
  4. To replace all mechanical fasteners with non-biodegradable toxic glues.

Explanation

Eco-design integrates environmental considerations into product development, focusing on resource efficiency, recycled materials, low energy consumption, durability, and end-of-life recyclability.

Question 44Design: visual communication, products, space and tested project decisions

How does Fused Deposition Modeling (FDM) 3D printing build physical product prototypes?

  1. By extruding molten thermoplastic filament layer-by-layer along computer-controlled paths. Correct answer.
  2. By carving objects out of marble blocks using pneumatic chisels.
  3. By pouring liquid molten iron into sand casting molds.
  4. By vaporizing plastic sheets using high-pressure steam.

Explanation

FDM additive manufacturing heats plastic filament (e.g., PLA, ABS) and deposits thin strands layer upon layer to build 3D physical models directly from CAD files.

Question 45Design: visual communication, products, space and tested project decisions

Which manufacturing process is most commonly used for mass producing complex thermoplastic consumer items like computer mouse housings or toothbrush handles?

  1. Injection Molding Correct answer.
  2. Hand Forging
  3. Sand Casting
  4. Glass Blowing

Explanation

Injection molding injects molten plastic under high pressure into steel/aluminum molds, allowing fast, high-precision, low-cost mass production of identical plastic parts.

Question 46Design: visual communication, products, space and tested project decisions

What is 'planned obsolescence' in industrial product design?

  1. Deliberately designing products with a limited useful life so they become obsolete or unrepairable after a predetermined period. Correct answer.
  2. Designing products to last for generations through modular component replacements.
  3. A legal mandate requiring all products to be manufactured from pure gold.
  4. The practice of certifying products under international safety standards.

Explanation

Planned obsolescence strategy deliberately restricts product lifespan or repairability to force consumers into purchasing replacements prematurely, creating environmental waste.

Question 47Design: visual communication, products, space and tested project decisions

How does a Circular Economy model differ from a traditional Linear Economy model ('take-make-waste')?

  1. It keeps materials, components, and products in continuous use through repair, reuse, remanufacturing, and closed-loop recycling. Correct answer.
  2. It disposes of products in landfills immediately after a single consumer use.
  3. It prohibits the use of renewable energy sources in manufacturing plants.
  4. It relies exclusively on non-recyclable composite resins.

Explanation

A circular economy decouples economic activity from the consumption of finite resources by designing out waste and pollution and circulating products and materials at their highest value.

Question 48Design: visual communication, products, space and tested project decisions

What mechanical material property is defined as the ability of a metal (such as copper or aluminum) to be drawn into thin wires without breaking?

  1. Ductility Correct answer.
  2. Malleability
  3. Hardness
  4. Brittleness

Explanation

Ductility is the physical property of a material allowing it to deform under tensile stress and be drawn into wires. Malleability refers to deformation under compressive stress (rolling into sheets).

Question 49Design: visual communication, products, space and tested project decisions

What is the primary logistical advantage of Ready-to-Assemble (RTA / Flat-pack) furniture design?

  1. It minimizes shipping volume and transport costs by allowing items to be packed tightly in flat containers for consumer home assembly. Correct answer.
  2. It eliminates the need for user assembly tools or instruction sheets.
  3. It increases the structural weight of furniture by 400%.
  4. It requires items to be transported in fully assembled wooden crates.

Explanation

Flat-pack design dramatically reduces package air volume, maximizing container shipping efficiency, lowering carbon footprint in transit, and enabling easy consumer transport.

Question 50Design: visual communication, products, space and tested project decisions

Which plastic manufacturing process is specifically used to produce hollow, seamless containers like plastic water bottles?

  1. Blow Molding (Moldeo por soplado) Correct answer.
  2. Compression Molding
  3. CNC Milling
  4. Laser Sintering

Explanation

Blow molding expands a heated plastic tube (parison) inside a mold cavity using compressed air, forming thin-walled hollow objects like bottles and jerrycans.