Technician A says the catalyst's ability to store and release oxygen is a direct indication of the catalyst's performance. Technician B says the catalyst monitor compares the signal from both the upstream and downstream oxygen sensors. Who is correct?

A. A only
B. B only
C. both A and B
D. neither A nor B


Answer: C

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With regard to an engine running in an electronic air suspension system, describe the conditions required for the control module to turn on continually the air suspension warning lamp.

What will be an ideal response?

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What cylinder number is the closest to the front of the engine on almost all V-type engines?

A. 1 B. 2 C. 4 D. 6

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The use of hard hats in industrial settings that might have falling objects has been mandated by federal law since 1981.