What causes the nitrogen and the oxygen in the air to combine and form oxides of nitrogen NOX?
A) Sunlight
B) Heat above 2500°F (1370°C)
C) Any spark
D) Chemical reaction in the catalytic converter
B
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All of the following statements are true EXCEPT:
A. the voltage regulator controls the current passing through the windings of the electromagnetic field in the rotor. B. the voltage regulator can be located on either the ground side or the positive side of the field circuit. C. electronic voltage regulation requires no moving parts, so it can cycle electronically between 10 and 7,000 times per second. D. turning the AC generator rapidly on and off to achieve a precise output is called voltage width modulation.
As humans developed from hunter gatherers to farmers, food became more stable
a. True b. False Indicate whether the statement is true or false
The finishing defect called ridging is also described as _____
a. picture framing b. eruption c. seaming d. furrowing
Write the chemical formula for the actual combustion gas chemistry equation for the internal combustion engine.
What will be an ideal response?