A technician is viewing a scan tool data stream to diagnose an OBD II system. The downstream HO2S has the same voltage switching rate as the upstream HO2S. Technician A says the air/fuel ratio is too rich. Technician B says the catalytic converter may be defective. Who is correct?
A. A only
B. B only
C. both A and B
D. neither A nor B
Answer: B
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The erroneous reading from the UPC symbol is given by 0 7 e 3 1 0 0 0 0 4 2 1, where e is the erroneous digit value. The value of e is _____.
What will be an ideal response?
?The E6010 electrodes are designed to be used with _______ polarity.
Fill in the blank(s) with the appropriate word(s).
In the residential industry especially, a subcontractor will offer to perform carpentry framing work at a ____ of building area.
A. price per linear foot B. price per cubic foot C. price per cubic yard D. price per square foot
How is an outdoor thermostat used in a dual-fuel heat pump system?
A) the outdoor thermostat prevents the furnace from operating above the balance point B) the outdoor thermostat prevents the electric strip heat from operating above the balance point C) the outdoor thermostat prevents the heat pump from defrosting above the balance point D) the outdoor thermostat prevents the heat pump from operating above the balance point