The label on an NFRC-rated window must include the ________.
A) U-value and air infiltration.
B) U-value and visible transmittance.
C) Solar heat-gain coefficient and air infiltration.
D) U-value and shading coefficient.
E) U-value and solar heat gain coefficient.
E) U-value and solar heat gain coefficient.
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Maps that detail the layout of a construction project are called:
a. Thematic maps b. Cadastral maps c. Engineering maps d. Topographic maps
The major purpose of preheating and postheating of cast iron is to control the rate of temperature change.
Answer the following statement true (T) or false (F)
Crowns are usually built during the construction of the _____.
a. trenches b. runoff barriers c. subgrade d. final bedding
Which of the following occurs as soon as a heating thermostat is closed?
a. The flame rollout switch opens. b. The blower fan starts c. The inducer fan starts. d. The inducer pressure switch opens