During the diagnostic test procedure for a Catalyst Efficiency code, a diagnostic scan tool is connected to the DLC with the vehicle at operating temperature, and the data screen displays the pre-catalyst oxygen sensor continually switching between 200 mV - 800 mV, while the post-catalyst oxygen sensor's output voltage stays relatively steady at 700 mV. Technician A says that the post-catalyst oxygen sensor is fixed rich and should be replaced. Technician B says that the oxygen sensor readings are both normal. 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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Answer the following statement(s) true (T) or false (F)
1. Process employees are responsible for protecting the environment inside their facility and outside it. 2. A primary benefit to the public is that air permits limit the amount of air pollution allowed a stationary source. 3. TSCA has created a chemical inventory list which has over 70,000 chemicals. 4. All drugs of abuse affect the user’s mood.
How should the vacuum gauge and vacuum pump be connected to a four-port manifold?
A) The vacuum gauge is connected to the evaporator coil, and the vacuum pump is connected to the discharge service valve. B) The vacuum gauge is connected to the discharge service valve, and the vacuum pump is connected to the evaporator coil. C) The vacuum gauge is connected to the 3/8-in center port, and the vacuum pump is connected to the 1/4-in center pump. D) The vacuum gauge is connected to the 1/4-in center port, and the vacuum pump is connected to the 3/8-in center pump.
How many wall ties are needed for a brick wall 43' long and 10' tall if the spacing of ties is 24" x 16"? Round the answer to the nearest whole number.
What will be an ideal response?
The general engineering change elements, terminology, and techniques are similar among companies where the ASME standards are followed.
Answer the following statement true (T) or false (F)