Which of the Following Procedures Is Used to Control DEF

question 7

Multiple Choice

Which of the following procedures is used to control DEF (diesel exhaust fluid) dosing, formed between the NOx sensors, ammonia (NH3) sensors, an ECM, and the dosing valve in the latest systems?

• A)Closed-loop feedback"
• B)Open-loop feedback"
• C)Exhaust backpressure
• D)Boost pressure feedback"

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Definitions:

Mixing

Mixing refers to the process of thoroughly combining two or more substances, achieving homogeneity at a molecular level in various contexts such as chemistry or cooking.

Limnetic Zone

The open, sunlit surface layer away from the shore of a freshwater body, where photosynthesis can occur, supporting a wide range of plankton and fish species.

Photosynthesis

The process by which green plants and some other organisms use sunlight to synthesize nutrients from carbon dioxide and water, generating oxygen as a byproduct.

Anaerobic

Growing or metabolizing in the absence of molecular oxygen. Compare with aerobic.