At design conditions of 75°F indoor air temperature and 50% relative humidity, the difference between the supply and return air temperatures should be in the range of __________ degrees.
A. 15 to 30
B. 16 to 36
C. 17 to 20
D. 20 to 30
Answer: C
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The measure of calls lost during a busy hour period is known as _____________
A. grade of service B. congestion C. holding time D. traffic measurement
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Both the Cable Modem and the DSL Modem interconnect to the end host device via an ________ interface
Fill in the blank(s) with correct word
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If a gas furnace consistently cycles off on the temperature limit switch, a likely cause is _____
a. a defective igniter b. a dirty air filter c. a defective inducer d. inadequate primary air
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An analog oscillator is an electronic circuit that creates an AC sine wave from a(n) ____ voltage source and a tank circuit (or crystal).
a. AC b. DC c. AC or DC d. AC/DC
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