Select the best answer for the question.

Technician A says that the airflow default setting in vehicles is defrost because seeing out the windshield is most important. Technician B says that failure for air to flow through any but the defrost vents is likely caused by a vacuum problem. Who is correct?

A. Both Technicians A and B
B. Neither Technician A nor B
C. Technician B
D. Technician A



Answer :

Final answer:

Technician B is correct as airflow defaulting to defrost is for visibility, and issues with air not flowing through other vents indicate a vacuum problem.


Explanation:

Technician B is correct. The default setting for airflow in vehicles is often set to defrost because clear visibility through the windshield is crucial for safe driving. Additionally, if air fails to flow through any vents except the defrost vents, it is likely due to a vacuum problem in the system.


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