Two Technicians Are Describing High- and Low-Pressure Exhaust Gas Recirculation

question 34

Multiple Choice

Two technicians are describing high- and low-pressure exhaust gas recirculation systems. Technician A says that non-cooled, high-pressure EGR flow dominates at low speed, low load conditions and transitions to more flow from the cooled, low-pressure EGR circuit. Technician B says that with an air intake throttle located downstream or after the EGR valve, the throttle plate can open and close to change the pressure differential. Who is right?

• A)A only"
• B)B only"
• C)Both A and B
• D)Neither A nor B"

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Definitions:

Sunk Costs

Expenses that have already been incurred and cannot be recovered.

Alternatives

Different options or choices available in a decision-making scenario.

Relevant Cost

A cost that differs between alternatives in a decision. This term is synonymous with avoidable cost and differential cost.

Direct Materials

The raw materials that are directly traceable to the manufacturing of a product.