Indirect active solar heating systems usually circulate _____.

a. an antifreeze solution in the closed loop
b. a synthetic oil blend in the closed loop
c. deionized water in the open loop
d. an antifreeze solution in the open loop


a. an antifreeze solution in the closed loop

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What are the advantages of a parallel-flow system?

What will be an ideal response?

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How many gallons of primer and paint are needed to paint the walls of the office shown in Figure 16.15? The walls are to receive one coat of primer and two coats of paint. The exterior walls only need paint on the interior sides. The walls are 8 feet high. One gallon of primer will cover 300 square feet and one gallon of paint will cover 400 square feet with a single coat. The doors are 3 feet wide by 6 feet 8 inches high.

What will be an ideal response?

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Discuss the difference between recovered, recycled, and reclaimed refrigerant

What will be an ideal response?

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Find the Norton and Thévenin equivalent networks seen from node a to b in Figure P3.71.

Assume R1 = 12 ?, R2 = 10 ?, R3 = 5 ?, R4 = 2 ?, IS = 3A.


Find:
Find the Norton and Thévenin equivalent circuits seen by clamps a and b

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