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27 October, 10:45

Two technicians are discussing the testing of a catalytic converter. Technician A says that a vacuum gauge can be used and observed to see if the vacuum drops with the engine at 2500 RPM for 30 seconds. Technician B says that a pressure gauge can be used to check for backpressure. Which technician is correct?

A) Technician A only

B) Technician B only

C) Both technicians A and B

D) Neither technician A nor B

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Answers (2)
  1. 27 October, 10:52
    0
    Both technicians A and B

    Explanation:

    Restricted exhaust flow is caused due to overheating of the catalytic converter. To measure the exhaust system, back pressure a pressure gauge is inserted into the oxygen sensor's bore in the exhaust. Hence they are both correct
  2. 27 October, 10:54
    0
    Answer is C. Both technicians A and B.

    Refer below.

    Explanation:

    Two technicians are discussing the testing of a catalytic converter. Technician A says that a vacuum gauge can be used and observed to see if the vacuum drops with the engine at 2500 RPM for 30 seconds. Technician B says that a pressure gauge can be used to check for backpressure. The following technician is correct:

    Both technicians A and B
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