All of these are dynamic superchargers EXCEPT _____.

A. centrifugal
B. positive displacement
C. axial flow
D. pressure wave


Answer: B

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A speech signal with XRMS =2VRMS is quantized with step size ?=10mV. Its SNR = _______ (xx.x) dB.

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

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Preload is the technical term for the tension caused by tightening a fastener.

Answer the following statement true (T) or false (F)

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Combustion equipment, such as gas-fired furnaces and water heaters, should not be located in a conditioned attic unless it is in a separate space that is sealed off from the rest of the conditioned spaces of the house.

Answer the following statement true (T) or false (F)

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The normal oxygen and carbon dioxide percentages in the flue gas of a properly operating gas furnace are approximately

A) 12% B) 7.5% C) 21% D) 10%

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