For which of the following is the last part of the evaporator used?
A) Raise the liquid percentage B) Increase the vapor percentage
C) Lower the liquid percentage D) Superheat the refrigerant
D
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Systems that involve the use of compressed air are governed by the principles of _____.
a. hydraulics b. phonetics c. pneumatics d. dynamics
Which of the following mortar joint profiles should be specified for an exterior wall?
A) Flush joint B) Concave joint C) Weathered joint D) Raked joint E) Struck joint
According to Section 310.15(B)(7) in the NEC®, the minimum conductor size for a 200-ampere residential service entrance is _________ Cu or _________ Al.
a. 4 AWG; 2 AWG b. 3 AWG; 1 AWG c. 2 AWG; 1/0 AWG d. 2/0 AWG; 4/0 AWG
Give one of three names of a system that uses a counter-flow heat exchanger between the inbound and outbound airflow that provide fresh air and improved climate control, while also saving energy by reducing the heating or cooling needs of the home.
What will be an ideal response?