The CSU/DSU has three alarm modes for advising the user about problems on the link. What does a blue alarm indicate?

A. Failure in the link has been detected
B. Incoming signal has been corrupted
C. Total loss of incoming signal
D. Incoming signal has been detected


C

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Near-azeotropic refrigerants are technically _____.

a. HFCs b. HCFCs c. zeotropes d. compounds

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When working with gases and liquids:

A. Temperature does not affect gas volume B. Pressure is applied unevenly to the inside of a container surface C. Gases are not compressible D. Liquids are not compressible

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Which fuel cell is best suited to automotive applications?

A) PEM B) MCFC C) PAFC D) None of these

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The unit of measurement for current flow is the ____.

A. volt B. ohm C. coulomb D. ampere

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