Energy Calculations Quiz
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Question 1 of 12
1. Question
What is the outside surface area of a round duct that is 6 inches in diameter and 10 feet long?
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Question 2 of 12
2. Question
What is the simple payback of the following energy retrofit? Material Cost = $150. Labor Cost = $350. Annual Savings = $100.
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Question 3 of 12
3. Question
What result does this formula give you?: Q = U x A x HDD x 24
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Question 4 of 12
4. Question
In this expression, what does “c” represent?: Q = m x c x dT
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Question 5 of 12
5. Question
What are the units on “q” when you solve this equation?: q = U x A x dT
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Question 6 of 12
6. Question
What process gives off the most heat to the surroundings?
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Question 7 of 12
7. Question
What is equivalent to 24 ccf (hundred cubic feet)?
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Question 8 of 12
8. Question
What is the BTU equivalent of 8 kWh (3412 BTU = 1 kWh)?
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Question 9 of 12
9. Question
If a 1500 Watt microwave operates for 35 minutes, how much energy did it use?
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Question 10 of 12
10. Question
What is the area-weighted average R-value of an attic, if 5% of it is R-1 and the other 95% is R-45?
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Question 11 of 12
11. Question
How many heating degree days (65 ºF base) have occurred on a day with a high temperature of 45ºF and a low of -15ºF?
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Question 12 of 12
12. Question
What is the estimated annual heat loss for a home in a climate with 3500 HDD that has a envelope area of 2280 square feet, and an overall U-factor of 0.09?
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