You are determining the root cause of a DPF that has failed because it emits continual black smoke under load but has logged no fault codes. Technician A says the seals in the turbocharger could be leaking and should be inspected. Technician B says that this can be caused by abnormally high engine temperatures so the cooling system should be checked. Who is correct?
A. Technician A only
B. Technician B only
C. Both A and B
D. Neither A nor B
Answer: A
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A) Cameras or infrared sensors B) Radar to determine where the road is located C) GPS to determine the location of the vehicle on the road D) All of the above are used
A megohmmeter can detect:
A) Moisture. B) Insulation faults. C) Contamination. D) All of these.
Series type motors have one undesirable characteristic. What is it?
What will be an ideal response?
Monthly maintenance costs, MC, for conveyor belts in an airport’s centralized baggage collection and distribution facility are clustered into cell midpoints with associated frequencies as shown. (a) Estimate the expected value and standard deviation of MC based on this sample. (b) What is the best estimate of the percentage of MC that will fall within ±1 standard deviation of the mean?
 FIGURE 1.png)