The ____, being a semiconductor component, has an unlimited life span due to the absence of a filament, a cause of trouble in conventional lamps.

A. solar cell
B. photodiode
C. light-emitting diode
D. photo cell


Answer: C

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A certain unsharpened cylindrical pencil is 1/4 inch in diameter and 10 inches long. What is the pencil’s volume?

a. 1 in3 b. 0.5 in3 c. 5 in3 d. 10 in3

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If you open a salon, the first requirements for the Board of Barbering and Cosmetology approved are:

What will be an ideal response?

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What should be put in place for safety reasons when using a shop press?

a. a screen b. a tarp c. a heavy sheet of steel d. a clear piece of plastic

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Which of these sensors does the TP sensor back up if the PCM determines that a failure has occurred?

A) Oxygen sensor B) MAF sensor C) MAP sensor D) Either B or C

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