DEF Emission Reduction and Composition

Spencer Stevens, a national finalist in environmental science, discusses his role in a diesel exhaust fluid (DEF) blending company. He explains the production process, responsibilities, and the environmental impact of DEF in reducing emissions. The video covers industry growth, product consistency, and quality assurance of ingredients, highlighting the importance of DEF in cleaning the air and meeting EPA regulations.

What is Spencer Stevens' role in his family business?

• Marketing Manager

• DEF Blending Manager

• Sales Executive

• Financial Analyst

What is DEF primarily composed of?

• Urea and ammonia

• Deionized water and ammonia

• Water and nitrogen

• Deionized water and urea

What is the main goal of Spencer's company regarding DEF?

• Increase sales in urban areas

• Reduce emissions from diesel engines

• Develop new agricultural equipment

• Expand into international markets

What year did the EPA mandate significant emission reductions?

• 2011

• 2015

• 2017

• 2020

By what year must farmers have a DEF-implemented fleet?

• 2025

• 2030

• 2040

• 2035

How much DEF has Spencer blended since 2017?

• 1.2 million gallons

• 1.4 million gallons

• 1.8 million gallons

• 1.6 million gallons

What is the ideal urea content percentage in DEF?

• 31.5%

• 32.5%

• 33.5%

• 30.5%

How does DEF help reduce emissions in diesel engines?

• By increasing fuel efficiency

• By converting NOx into harmless substances

• By reducing engine noise

• By lowering fuel consumption

What is the role of the SCR system in emission reduction?

• It filters out particulate matter

• It reduces fuel consumption

• It injects DEF to convert NOx into water and nitrogen

• It increases engine power

How is the quality of water used in DEF production ensured?

• By using only bottled water

• By monthly inspections and third-party testing

• By using untreated city water

• By adding chemical stabilizers