Design and Technology Flashcards

What is the main purpose of a jig in the manufacturing process?

Answer: To ensure consistent and accurate positioning of a workpiece

A jig holds and guides a workpiece in a specific position to ensure consistency and accuracy when repeating the same operation many times.

Which mechanism converts rotary (circular) motion into linear (straight-line) motion?

Answer: Rack and pinion

A rack and pinion converts rotary motion to linear motion — as the circular pinion rotates, it drives the straight rack in a straight line.

Which measuring instrument is used to accurately measure both internal and external dimensions of an object?

Answer: Vernier caliper

A vernier caliper can precisely measure internal dimensions (e.g., inside a hole), external dimensions (e.g., outside diameter), and depth.

Which finishing process is applied to steel products to protect them from rusting?

Answer: Galvanizing

Galvanizing coats steel with a layer of zinc, which acts as both a physical barrier and a sacrificial anode to prevent rusting.

In product design, what does ergonomics refer to?

Answer: Designing products to fit human body measurements and capabilities

Ergonomics is the science of designing products to suit human physical and cognitive needs, improving comfort, efficiency, and safety during use.

What is the primary purpose of creating a prototype during the design process?

Answer: To test and evaluate design ideas and identify problems before full production

A prototype allows designers to test functionality, ergonomics, and aesthetics, identifying problems before committing to expensive full-scale production.

Which type of technical drawing provides exact dimensions and multiple flat views, and is used by manufacturers to produce components accurately?

Answer: Orthographic projection

Orthographic projection shows front, side, and plan views with exact dimensions, giving manufacturers all the information needed to produce a component accurately.