Nate gas heat test - Study guides, Class notes & Summaries
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Fundamentals of HVACR Second Edition | Answers to End of Unit Questions | Latest exam Questions with Correct Answers
- Exam (elaborations) • 280 pages • 2021
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UNIT 1 REVIEW QUESTIONS ANSWER KEY 
1-1) List some of the different ways that homes and buildings may be heated. 
Wood, gas, oil, electric, solar, heat pumps, and geothermal heating systems 
are used. 
1-2) What were some of the primary heating fuels that early civilizations used? 
Wood, peat, and coal remained the primary heating fuels for centuries. 
1-3) When is it believed that ice was first artificially made for food storage? 
First evidence of man making ice appeared more than 3,000 years ...
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