Question

technician a says vacuum traces should be taken at idle, 1,200 rpm, and 2,500 rpm when using a pressure transducer. technician b says vacuum testing should only be performed at idle speed. who is correct? select one: a. technician a b. technician b c. both a and b d. neither a nor b

Explanation:

When using a pressure transducer for vacuum testing, it is important to take vacuum traces at different engine speeds (idle, 1,200 rpm, and 2,500 rpm) to get a comprehensive understanding of the engine's vacuum system performance. Testing only at idle speed (as Technician B suggests) is insufficient as engine performance and vacuum characteristics can vary significantly at different speeds.

Answer:

a. Technician A