Where is the high-side access port located on most residential central air conditioning systems?
A. discharge line
B. liquid line
C. suction line
D. directly on the compressor high side
Answer: B
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The freezing point of water is ________ on the Celsius scale.
A) 0 degrees B) 100 degrees C) 212 degrees D) 32 degrees
Refer to the illustration, which shows an exposed-grid suspended ceiling that is 10' × 20' and uses 2' × 4' ceiling tiles. The number of 12' main runners required for the ceiling is _____.
a. two b. three c. four d. five
What is the purpose of the Department of Energy's Building Technologies Program (BTP)?
A) To develop technologies for building homes faster B) To teach young architects about standard building technologies C) To achieve a 30 percent reduction in energy use in residential and commercial building codes D) To develop technologies for producing less-expensive construction techniques
Sample-and-hold circuitry is associated with ________
A) pulse amplitude modulation B) pulse width modulation C) pulse-coded modulation D) quadrature amplitude modulation