The total voltage in a circuit with voltage drops of 15V, 25V, and 20V is _____

A) 20V
B) 60V
C) 120V
D) 180V


Answer: B
Explanation: A)
B) Ea = E1 + E2 + E3 = 15V + 25V + 20V = 60V
C)
D)

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An insulating material with a very low perm rating means that it _____.

a. is a very poor vapor retardant b. is an excellent vapor retardant c. can’t be used as an insulation finish product d. must be applied in multiple layers to be an effective vapor retardant

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Calculate the savings in ft^3 of natural gas (from Louisiana). Assume the furnace has an efficiency of 92%.

What will be an ideal response?

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