Technician A says that a wide-band oxygen sensor, also called a lean air-fuel (LAF) sensor, can detect air-fuel ratios from as rich as 10:1 to as lean as 23:1. Technician B says that the oxygen sensor signal determines fuel trim which is used to tailor the air-fuel mixture for the catalytic converter. Which technician is correct?
A) Technician A only B) Technician B only
C) Both technicians A and B D) Neither technician A nor B
C
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The writer who faded to obscurity in the nineteenth century but was recognized as one of America's greatest literary geniuses in the 20th century and wrote the masterpiece work of fiction, Moby Dick, was
A. Nathaniel Hawthorne. B. Henry David Thoreau. C. Henry Wadsworth Longfellow. D. Herman Melville. E. Walt Whitman.
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____________________ are the simplest type of semiconductor
Fill in the blank(s) with the appropriate word(s).
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Silage yields are usually up to 50 percent higher per acre than hay yields
Indicate whether the statement is true or false
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A transistor can be used as an electronic switch
Indicate whether the statement is true or false
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