What causes the nitrogen and oxygen in the air to combine and form NOx?
A) Any spark will cause this to occur
B) Chemical reaction in the catalytic converter
C) Heat above 2,500°F (1,370°C)
D) Sunlight
C
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A ____________________ is equal to one billionth of a gram
Fill in the blank(s) with correct word
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____________________ is a common nutritional defect characterized by pain, sweating, constipation, kicking, and groaning.
Fill in the blank(s) with the appropriate word(s).
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A process in which sewage is aerated for about 24 hours is called
a. step aeration b. contact stabilization c. extended aeration d. advanced treatment e. none of the above
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All of the following are considered special rigs EXCEPT:
A. dry bulk tankers B. those carrying livestock C. those with flatbed trailers D. those carrying oversized loads
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