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 idle 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 D) Neither technician
Question 2
EGR systems ________.
A) Are used on all vehicles B) Reduce NOx emissions
C) Both A and B D) Neither A nor B
Culture and sensitivity testing.
Testing the Chemical Characteristics of Urine with Reagent Strips
Voltmeter hook-ups for voltage-drop testing of a Ford-type cranking circuit.
The OBD-II catalytic converter monitor compares the signals of the upstream and downstream oxygen ...
A typical port fuel-injection system squirts fuel into the low pressure (vacuum) of the intake ...
Testing motor function of cranial nerve VII - Raise eyebrows