What does afue stand for Study guides, Class notes & Summaries
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NATE Gas Heating Exam with Complete Solutions 100% Verified Graded A+
- Exam (elaborations) • 20 pages • 2023
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NATE Gas Heating Exam with Complete Solutions 100% Verified Graded A+ 
In a modern gas furnace, the component that separates the combustion gases from the supply air is the ______. 
a. gas valve 
b. heat exchanger 
c. inducer fan 
d. plenum box - Correct Answer b (heat exchanger) 
 
What type of furnace moves warm air through the conditioned space without a fan? 
a. Gravity 
b. Horizontal 
c. Lowboy 
d. Upflow - Correct Answer a (Gravity) 
 
Furnace heat exchangers generally are made of ______. ...
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BPI BA Study Set Questions with Correct Answers New Update
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BPI BA Study Set Questions with Correct Answers New Update 
What are 4 types of DHWs? - Answer free standing, tankless, solar, indirect 
 
What is flame roll out? - Answer severe and dangerous form or back drafting 
 
What does AFUE stand for? - Answer Annual fuel Utilization Efficiency - the MPG for fossil fuel burning devices. 
 
What two things must you do before entering a bldg according to BPI standards? - Answer Turn on gas sniffers and CO devices to calibrate then in outdoor air. 
 
...
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NATE Gas Heating Study Guide Exam Well Answered 2024.
- Exam (elaborations) • 20 pages • 2024
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b (heat exchanger) - Answer In a modern gas furnace, the component that separates the combustion gases from the supply air is the ______. 
a. gas valve 
b. heat exchanger 
c. inducer fan 
d. plenum box 
 
a (Gravity) - Answer What type of furnace moves warm air through the conditioned space without a fan? 
a. Gravity 
b. Horizontal 
c. Lowboy 
d. Upflow 
 
d (steel) - Answer Furnace heat exchangers generally are made of ______. 
a. ceramic 
b. copper 
c. plastic 
d. steel 
 
b (Annual Fuel...
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NATE Gas Heating Exam Questions with 100% Correct Answers (A+ Paper)
- Exam (elaborations) • 14 pages • 2024
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B (heat exchanger) Correct Answer In a modern gas furnace, the component that separates the combustion gases from the supply air is the ______. 
A. Gas valve 
B. Heat exchanger 
C. Inducer fan 
D. Plenum box 
 
A (Gravity) Correct Answer What type of furnace moves warm air through the conditioned space without a fan? 
A. Gravity 
B. Horizontal 
C. Lowboy 
D. Upflow 
 
D (steel) Correct Answer Furnace heat exchangers generally are made of ______. 
A. Ceramic 
B. Copper 
C. Plastic 
D. Steel 
 
B ...
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Massachusetts Oil Burner License Exam - Questions and Answers
- Exam (elaborations) • 20 pages • 2024
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Massachusetts Oil Burner License Exam - Questions and Answers Which substance offers the most resistance to the flow of electricity? Carbon What must be done to a draft gauge before use? Zero out the scale Which of the following is considered the better chimney? Cement block with a tile liner Air is composed of oxygen and nitrogen in what percentages? 21 and 79 Before installing a new nozzle the service technician should: Flush out the nozzle line and adapter Pulsating oil pump pressure is cau...
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Oil burner's Test Questions 1-200 ( Answered )
- Exam (elaborations) • 14 pages • 2024
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Oil burner's Test Questions 1-200 ( Answered ) 
Oil burner's test questions 1-200 
 
 
 
In an electric circuit for the wattage to remain the same if the voltage drops, the amperage must - ANS Increase 
 
Atomizing type burners were designed to burn which type of fuel - ANS Type 2 fuel oil 
 
Pour point problems with outside above ground fuel tanks can be partially relieved by - ANS Reducing the pour point of No. 2 fuel oil by blending it with No. 1 fuel oil. 
 
A fuel oil storage tank ...
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HVAC Exam Questions With 100% Correct Answers.
- Exam (elaborations) • 3 pages • 2024
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What are the 4 modes for heat transfer and example? - 1) radiation: radiator 
2) conduction: heated floor, pot on stove 
3) convection: forced air system 
4) evaporation: AC running at house and come in from the beach sweating (idk what that means ) 
What are different types of heating systems? - (radiant) 
pros: easy to zone, min distribution loss, lack of convected heat loss 
cons: no duct work (need for AC system), recovers slowly 
pros and cons of the different heating systems? - 
What is t...
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HVAC Exam 2023 with 100% correct answers
- Exam (elaborations) • 3 pages • 2023
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What are the 4 modes for heat transfer and example? 
1) radiation: radiator 
2) conduction: heated floor, pot on stove 
3) convection: forced air system 
4) evaporation: AC running at house and come in from the beach sweating (idk what that means ) 
 
 
 
What are different types of heating systems? 
(radiant) 
 
pros: easy to zone, min distribution loss, lack of convected heat loss 
 
cons: no duct work (need for AC system), recovers slowly 
 
 
 
pros and cons of the different heating systems?...
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