In Manual J, fenestration means:
A) The material used to seal around openings.
B) Openings made in the building envelope for the purpose of providing ventilation.
C) A barrier against infiltration.
D) Anything that light can pass through.
D
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Which type of construction is commonly used in a typical single-family dwelling in the United States?
A) Type V(B) B) Type II(A) C) Type IV D) Type II(B) E) Type V(A)
If the phase values of voltage and current are known, the apparent power can be computed using the formula VA = ____.
a. 
b. 
c. 
d. 
____ is a three-dimensional mathematical system.
A. Geometrical datum targeting B. Geometrical datums and tolerancing C. Geometrical dimensioning and targeting D. Geometric dimensioning and tolerancing
How can infrared light be used to detect refrigerant?
A) Refrigerant turns the infrared light blue. B) Infrared sensors change resistance in the presence of refrigerant. C) Infrared sensors interact with oxygen at different rates depending on the refrigerant exposure. D) Most gasses absorb infrared light at a characteristic frequency.