A vehicle is brought in for repair with the complaint of poor fuel economy. A diagnostic scan tool is attached to the DLC with the vehicle at operating temperature, and the technician determines that the pre-catalyst oxygen sensor voltage is biased high and the injector pulse width is long, and both STFT and LTFT are high. All of the following conditions could cause this EXCEPT:
A. high fuel pressure
B. open coolant temperature sensor circuit
C. TP sensor voltage fixed high
D. MAP sensor output indicates high load condition
Answer: A
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A. ?polyethylene terephthalate (PET) B. ?polyoxymethylene (POM) C. ?polyvinyl chloride (PVC) D. ?fluoroplastics
End bearing piles _____.
a. have a bearing to allow pile movement b. are used to support the end of a pile c. support loads from the end of a bridge d. transfer loads to bedrock or dense soil
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What will be an ideal response?
An existing Class III two-lane highway is to be analyzed to determine the level of service in each direction given the following information:
Peak hourly volume in the analysis direction: 900 veh/h Peak hourly volume in the opposing direction: 720 veh/h Trucks: 10% of total volume Recreational vehicles: 2% of total volume PHF: 0.94 Lane width: 12 ft Shoulder width: 2 ft Access points per mile: 30 Terrain: level Measured free flow speed: 45 mi/h No passing zones: 60% of analysis segment length What will be an ideal response?