A wide band oxygen sensor is used to ________

A) Help improve fuel economy by allowing the engine to operate at a lean air-fuel ratio
B) Help the engine meet achieve ultra-low emission vehicle (ULEV) rating
C) Help the engine achieve a super ultra-low emission vehicle (SULEV) rating
D) All of the above


D

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Because of the variability of business and technician output, the shop manager needs to carefully track ________.

A) Average rate reductions B) Average labor costs C) Parts delivery time D) Percentage of taxes vs. payments E) Both C and D

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? Over the last century, historians' criticisms of the industrial capitalism of the Gilded Age have included the

A. romantic idea that industrialization diminished workers' spiritual quality of life. B. assertion that workers were brutalized by the industrial system. C. argument that American living standards were not raised by industrialization. D. claim that American industrialization sharpened class divisions. E. assertion that most great American fortunes came from inherited wealth.

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The ____ is used to prevent data from being lost when collisions occur due to        multiple messages arriving simultaneously at a receiver.

A. CSMA B. TDMA C. Either A or B

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Semi-trailers made before 1975 that are equipped with air brakes:

a. Have only a service air line. b. Often do not have spring brakes. c. Usually need a glad hand converter.

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