Design and Technology Quiz
Questions: 16 · 10 minutes
1. Compared with redrawing by hand, what is a major advantage of using CAD to develop a product design?
It guarantees that the product will satisfy every user
It allows dimensions and features to be edited precisely and efficiently
It automatically selects the most sustainable material
It eliminates the need to test physical properties
2. A metal shaft is specified as 10.00 mm ± 0.05 mm in diameter. What does the tolerance allow?
Any diameter below 10.05 mm
Only a diameter of exactly 10.00 mm
Diameters from 9.90 mm to 10.10 mm
Diameters from 9.95 mm to 10.05 mm
3. Which drawing presents an object through separate two-dimensional views, commonly front, plan, and side?
Orthographic projection
One-point perspective drawing
Exploded isometric drawing
Freehand rendering
4. A company needs to produce thousands of identical plastic bottle caps with complex details and a consistent finish. Which process is most suitable?
Injection moulding
Vacuum forming
Sand casting
Laminating
5. A designer creates a chair whose worn seat, legs, and fasteners can be separated and individually replaced. Which circular-design strategy is demonstrated most directly?
Design for planned obsolescence
Design for repair and disassembly
Design for single-use disposal
Design for permanent bonding
6. A team adjusts a computer mouse after observing hand posture, grip reach, and discomfort during use. Which design consideration are they applying most directly?
Planned obsolescence
Market segmentation
Batch production
Ergonomics
7. In materials science, what primarily distinguishes hardwood from softwood?
Hardwood is always denser than softwood
Hardwood cannot be cut with hand tools
Hardwood comes from broad-leaved angiosperm trees, while softwood generally comes from conifers
Hardwood is natural timber, while softwood is manufactured board
8. A worker uses a crowbar with a long handle to lift a heavy lid. Why does the long handle help?
It moves the fulcrum inside the load
It increases the turning effect produced by the applied force
It removes the reaction force at the pivot
It makes the load weigh less
9. What does a life-cycle assessment examine when evaluating a product?
Only the amount of waste created in the factory
Only whether the product can be recycled after use
Environmental impacts across stages such as sourcing, production, use, and disposal
The product’s sales performance from launch to withdrawal
10. A factory checks the diameter of every fiftieth component against the drawing after production has started. What activity is this?
Design fixation
Quality assurance through staff training
Quality control through product inspection
Market research through observation
11. A design specification is being prepared for a reusable water bottle. Which statement is the best example of a measurable specification point?
The bottle should look modern
The bottle must hold 750 ml and remain leak-free when inverted for two minutes
The bottle should be pleasant to carry
The bottle should appeal to most people
12. A prototype casing must be heated, reshaped, and reheated several times during testing. Which material category best supports this process?
Thermoplastic
Thermosetting plastic
Fired ceramic
Concrete
13. A greenhouse controller measures temperature and switches a fan on or off to maintain a target value. Which feature makes this a feedback system?
The fan is powered by electricity
The user can see the target temperature
The controller contains both input and output components
The measured temperature is used to adjust the system’s output
14. Three identical lamps are connected in series. One lamp fails and creates an open circuit. What is the expected result?
All three lamps go out because the circuit path is broken
The other two lamps become brighter because they receive more current
Only the failed lamp goes out because each lamp has an independent path
The battery voltage automatically increases to bridge the gap
15. Why do designers usually iterate during product development?
To prevent the design brief from changing under any circumstances
To delay material selection until manufacturing begins
To test, evaluate, and improve ideas through repeated cycles
To ensure the first concept is used in the final product
16. A lightweight rectangular frame twists out of shape under sideways force. Which modification would most directly increase its structural rigidity?
Increase the spacing between its vertical members
Replace its joints with flexible hinges
Remove one horizontal member
Add a diagonal brace to create triangles