1. Which type of air ducts are the most efficient? a. Half Round b. Square c. Round d. Rectangular 2. In an air-conditioning circuit, what is the black wire? a. Neutral b. Power c. Ground d. Secondary 3. If the ducts are in concrete, what is the proper type of furnace? a. Gravity b. Upflow Lowboy c. Upflow Highboy d. Downflow 4. A 60,000 BTU cooling unit has how many tons of cooling capacity? a. 3 Tons b. 5 Tons c. 6 Tons d. 20 Tons 5. How much does 1 gallon of water weigh? a. 1.25 pound b. 4.33 pounds c. 8.33 pounds d. 10.25 pounds 6. How many watts equal 1 horsepower? a. 746 Watts b. 648 Watts c. 480 Watts d. 100 Watts 7. Which of the following is the best insulation? a. Aluminum b. Styrofoam c. Blanket d. Batted 8. On an A/C system, the return should be _____________. a. Vented near the unit b. Vented outside

 

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jordancarter 7 months ago

This study guide is clear, well-organized, and covers all the essential topics. The explanations are concise, making complex concepts easier to understand. It could benefit from more practice questions, but overall, it's a great resource for efficient studying. Highly recommend!
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