Why should air velocity in branch ducts be limited to 600 feet per minute?
A) To allow the air to establish an insulating air boundary layer inside the duct
B) To minimize air noise
C) To keep the blower speed down to a reasonable RP
D) To encourage proper mixing of the air inside the duct
B
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Ascarids and ____ are classified into a large group of parasites known as roundworms.
A. strongyles B. bots C. tapeworms D. ticks
The Southern Pine Inspection Bureau has established fifteen categories of stress-graded lumber ____ in. or less in thickness.
A. 2 B. 3 C. 4 D. 5
A vehicle has a worn steering part. The repair is covered under a warranty that the customer bought when he purchased the vehicle. Which warranty would likely pay for the repair?
A. “Bumper to bumper” new vehicle warranty B. Extended warranty C. Power train warranty D. Emission warranty
The primary disadvantage of the simultaneous A/D converter is ________
A) the large number of comparators required to represent a reasonable-sized binary number B) the long conversion time required C) the large number of output lines required to simultaneously decode the input voltage D) that it requires the input voltage to be applied to the inputs simultaneously