Practice IB Design Technology (DT) Topic 2.4 Clean Technology with authentic exam-style questions for both SL and HL students. This question bank focuses on the exact syllabus content for 2.4 Clean Technology and mirrors Paper 1, 2, 3 style where relevant.
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Which of the following is a primary benefit of using clean technology in manufacturing?
A manufacturing company adopts two distinct strategies to improve its environmental performance, as described in the table below.
| Strategy | Description |
|---|---|
| I | Improving the efficiency of a factory boiler by installing a computerized thermal monitoring system. |
| II | Replacing the fossil-fuel boiler with an industrial heat pump that utilizes geothermal energy. |
Which row correctly identifies the classifications for Strategy I and Strategy II?
A manufacturing plant installs a filtration system on its main waste pipe to remove chemical residues before the water is discharged into a local river. Which clean technology strategy does this represent?
Greenfeet publishes a sustainability progress report every year which summarizes the total environmental impact of the products it produces, see Figure 1.
Figure 1: Greenfeet Sustainability Progress Report 2019
| Area of Impact | % |
|---|---|
| CO2 footprint | 39% |
| Land use | 4% |
| Pollution (air) | 28% |
| Pollution (water) | 6% |
| Water consumption | 23% |
Value Chain
| Category | Subcategory | % |
|---|---|---|
| Manufacturing | Raw materials | 46% |
| Production sites | 4% | |
| Supply | Supplier (tier 2) | 12% |
| Supplier (tier 1) | 7% | |
| Distribution | Wholesale | 2% |
| Retail | 3% | |
| Direct | 2% | |
| Administration | Staff | 14% |
| Offices | 6% | |
| End of Sale | 4% |
In 2018, Greenfeet introduced the Vertue shoe, featuring an upper made entirely from ocean-recovered plastic. By 2019, the company aimed to produce 1.5 million pairs of Vertue shoes using 200 tons of recovered plastic, with each shoe incorporating around 13 plastic bottles.
In 2019 Greenfeet updated its original Climeate shoe, with yarns made from recycled plastic waste collected from beaches. The 2019 Climeate uses an EVA rubber sole.
For comparison, the original Greenfeet Climeate shoe (2004) featured two diagonal side stripes, a similar panel pattern on the upper, an EVA rubber sole, and a comparable colour scheme.
State the percentage of pollution caused by water pollution.
Outline how the Greenfeet Vertue shoe serves as an example of waste mitigation.
Outline one driver for cleaning up manufacturing.
Outline why sketches would be used in the development of the Greenfeet Vertue shoe.
Explain one physiological factor considered in shoe sole design.
Outline the maximum and minimum percentiles that Greenfeet would use when manufacturing the Climeate shoe.
Describe how the EVA rubber sole of the Greenfeet Climeate shoe could be moulded.
List two consequences of a manufacturing process that uses large quantities of raw materials.
List one characteristic that the retro-styled Greenfeet Climeate shoe (2019) shares with the original Greenfeet Climeate shoe (2004).
Which of the following is a primary benefit of using clean technology in manufacturing?