?What type of piping is used withmost solar water heating systems today?
A. ?copper tubing
B. ?corrugated stainless steel tubing
C. ?glass tubing
D. ?soldered stainless steel tubing
Answer: B
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To select a buck-and-boost transformer, use _____.
a. tables listed in the NEC® b. standard electrical calculations c. system measurements d. charts provided by the manufacturer
The purpose of casting steel struts into an aluminum piston is to ________
A) Control thermal expansion B) Provide increased weight at the top part of the piston where it is needed for stability C) Provide increased strength D) Both A and C
The three phases of most commercial beef production are cow-calf, stocker-yearling, and feedlot.
Answer the following statement true (T) or false (F)
When open collector outputs are wired together, the ________ function is performed
A) OR B) INVERSION C) NAND D) AND