Technician A says that EGR (Exhaust Gas Recirculation) is usually not needed at idle, and not wanted at wide-open throttle for maximum engine performance, or when the engine is cold. Technician B says that oxides of nitrogen (NOx) are formed inside the combustion chamber due to heat exceeding 4500°F. Which technician is correct?
A) Technician A B) Technician B C) Both technicians D) Neither technician
A
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? In the distribution below, what is the median? 4, 6, 7, 9, 12, 17, 19
A. ?9 B. ?10 C. ?12 D. ?74
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? Identify and state the historical significance of the Freedmen's Bureau.
What will be an ideal response?
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To determine if a product or substance being used is hazardous, consult ________
A) SAE standards B) EPA guidelines C) A dictionary D) An MSDS
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The main difference between a miter gear and a bevel gear is the ratio of teeth.
Answer the following statement true (T) or false (F)
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