What are the two general categories of humidifiers?
A) Wet and dry
B) Packaged and split system
C) Condensing and noncondensing
D) Those that rely on heated air and those that supply their own energy to evaporate water
D
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What type of generator generates equal intensities of all frequencies in the range of 20 to 20,000 Hz?
A. Signal B. Audio C. Pink noise D. White noise
Which of the following would provide the correct cam lift dimension?
A. OBC minus IBC B. shaft centerline to toe dimension C. IBC minus OBC D. lift flank minus unload flank dimension
An ideal soil contains about 50 percent solid material and 50 percent pore space by volume
Indicate whether the statement is true or false
To resist corrosion, the recuperative cell on a condensing oil furnace is made of
A) High quality stainless steel B) Heavy galvanized steel C) Aluminized steel D) Teflon coated steel