The most commonly used fuel cell in concept vehicles is the ____.

A. fuel exchange membrane
B. oxygen exchange membrane
C. electron exchange membrane
D. proton exchange membrane


Answer: D

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____________________ are electrical devices that consume electricity to do useful work.

Fill in the blank(s) with the appropriate word(s).

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The level on the separator is controlled at?

a. 30% b. 50% c. 75% d. 100%

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For what type of resonant circuit is there is no internal resistor for the inductor?

A. Series B. Ideal parallel C. Practical D. Internal

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Technician A says that fine sandpaper for color sanding is used to smooth out orange peel. Technician B says that when hand sanding to remove orange peel, a sanding pad should be used. Who is correct?

A. Technician A only B. Technician B only C. Both Technicians A and B D. Neither Technician A nor B

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