Which of the following is the term that defines when two signals at different frequencies are combined in a nonlinear device?
A. Aliasing
B. Mixing
C. Foldover distortion
D. Fluctuating
B
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When normal surfaces are parallel to the front view, they are referred to as ____________________ surfaces.
Fill in the blank(s) with the appropriate word(s).
The installation of cable tray is covered in _____.
a. NEC Article 250 b. NEC Article 386 c. NEC Article 392 d. NEC Article 440
What causes the little pops and ticking that can be heard in some furnaces before the blower comes on?
A) Small quantities of water in the gas B) Mechanical rattles from an unbalanced indoor blower C) Expansion of the heat exchanger as it heats up D) Small concentrated pockets of gas that explode
The complexity of the residence determines which _____ are required.
A. bubble drawings B. BIM drawings C. working drawings D. preliminary drawings