What type of smog is produced by the reaction of tailpipe gases and sunlight?
A. Sulfur dioxide.
B. Carbon Monoxide.
C. Volatile organic compounds (VOCs).
D. Photochemical.
Answer: D
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The most widely used analog to digital conversion method is
A) successive-approximation B) tracking C) single-slope D) dual-slope
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Find the frequency response 
and graph it for each of the filters in Figure E-54.
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CADD designs can be quickly transformed into three-dimensional prototypes using different technologies. Which of the following is not one of these types of technology?
A. rapid manufacturing B. desktop manufacturing C. solid freeform fabrication D. conceptual modeling E. none of the above
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____________________ happens when an atomized fuel makes contact with a spark.
Fill in the blank(s) with the appropriate word(s).
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