Technician a Says That EGR Systems Lower In-Cylinder NOx Formation

question 43

Multiple Choice

Technician A says that EGR systems lower in-cylinder NOx formation by reducing peak cylinder pressures and temperatures. Technician B says EGR systems reduce NOx emissions by reducing displaced air in the cylinder. Who is correct?

• A)Technician A
• B)Technician B
• C)Both A and B
• D)Neither A nor B

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Definitions:

Lens

Transparent biconvex structure lying between the iris and the vitreous humor.

Mesoderm

The middle layer of an embryo in early development that gives rise to muscles, bones, and the circulatory system.

Autonomic Neurons

Nerve cells that control involuntary functions of the body, such as heart rate, digestion, and respiratory rate.

Adrenal Medulla

The inner part of the adrenal gland that secretes adrenaline and noradrenaline, hormones involved in the body's stress response.