CPWM Sustainable Materials Management 2

Question 1

Which EPA framework replaced the traditional 'cradle-to-grave' waste management approach with a 'cradle-to-cradle' lifecycle perspective?

Accepted Answer

Sustainable Materials Management

Answer

Resource Conservation and Recovery Act

Answer

Extended Producer Responsibility

Answer

Industrial Ecology

Question 2

In life cycle assessment (LCA), which stage typically accounts for the greatest energy consumption in the production of aluminum beverage cans?

Accepted Answer

Raw material extraction and primary production

Answer

End-of-life disposal

Answer

Transportation and distribution

Answer

Consumer use phase

Question 3

A municipality wants to divert food scraps from landfill. Which SMM strategy yields the highest material value recovery from food waste?

Accepted Answer

Source reduction through food rescue programs

Answer

Landfill gas capture

Answer

Anaerobic digestion for biogas

Answer

Composting for soil amendment

Question 4

Which metric best measures the circularity performance of a product system under Sustainable Materials Management principles?

Accepted Answer

Material circularity indicator (MCI)

Answer

Recycling rate by weight

Answer

Landfill diversion percentage

Answer

Carbon footprint per unit

Question 5

Under the concept of industrial symbiosis, what occurs when a cement kiln co-processes hazardous waste?

Accepted Answer

Waste serves as both a fuel substitute and raw material, replacing virgin inputs

Answer

Waste is neutralized through chemical treatment before disposal

Answer

Hazardous constituents are encapsulated in the cement matrix permanently

Answer

Waste heat is recovered and exported to nearby facilities

Question 6

Which design principle specifically aims to eliminate the concept of waste by ensuring all material outputs become inputs for another process?

Accepted Answer

Cradle-to-cradle design

Answer

Design for disassembly

Answer

Eco-efficiency

Answer

Design for recyclability

Question 7

A materials recovery facility (MRF) reports a 15% contamination rate in its paper stream. What is the most likely SMM-aligned corrective action?

Accepted Answer

Implement community outreach and education on acceptable materials

Answer

Reject all loads exceeding 10% contamination

Answer

Upgrade optical sorting equipment to improve material purity

Answer

Switch to single-stream collection to increase total volume