Nate gas heat Study guides, Class notes & Summaries
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NATE Gas Heating Exam Verified Questions and answers 2023 Latest Update
- Exam (elaborations) • 14 pages • 2023
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NATE Gas Heating Exam Verified 
Questions and answers 2023 
Latest Update 
Since 1992, the United States Department of Energy has required that all furnaces sold 
and installed from that date on must have an AFUE of no less than: 
A: 70% 
B: 75% 
C: 78% 
D: 80% - correct answer C: 78% 
Many pre-1992 furnaces have efficiencies around . 
A: 10% 
B: 40% 
C: 60% 
D: 80% - correct answer C: 60% 
Today, furnaces with AFUE ratings greater than are available. 
A: 85% 
B: 90% 
C: 100% 
D: 110% - correct ...
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NATE Gas Heating Exam Questions with Correct Answers 2023
- Exam (elaborations) • 19 pages • 2023 Popular
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NATE Gas Heating Exam Questions with Correct Answers 
Since 1992, the United States Department of Energy has required that all furnaces sold and 
installed from that date on must have an AFUE of no less than: 
A: 70% 
B: 75% 
C: 78% 
D: 80% -AnsC: 78% 
Many pre-1992 furnaces have efficiencies around _______. 
A: 10% 
B: 40% 
C: 60% 
D: 80% -AnsC: 60% 
Today, furnaces with AFUE ratings greater than _____ are available. 
A: 85% 
B: 90% 
C: 100% 
D: 110% -AnsB: 90% 
A thermocouple is used with: 
A:...
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NATE Gas Heating Exam questions with correct answers
- Exam (elaborations) • 19 pages • 2023
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Since 1992, the United States Department of Energy has required that all furnaces sold and installed from that date on must have an AFUE of no less than: 
 
 A: 70% 
 
 B: 75% 
 
 C: 78% 
 
 D: 80% CORRECT ANSWER C: 78% 
 
Many pre-1992 furnaces have efficiencies around _______. 
 
 A: 10% 
 
 B: 40% 
 
 C: 60% 
 
 D: 80% CORRECT ANSWER C: 60% 
 
Today, furnaces with AFUE ratings greater than _____ are available. 
 
 A: 85% 
 
 B: 90% 
 
 C: 100%
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HVAC NATE Gas Heat Exam Prep (Latest 2024/ 2025 Update) 100% Correct Questions and Verified Answers| Grade A
- Exam (elaborations) • 33 pages • 2024
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HVAC NATE Gas Heat Exam Prep (Latest 2024/ 2025 Update) 100% Correct Questions and Verified Answers| Grade A 
 
 
Q: When starting up a dual system, the temperature rise method for determining airflow cannot be used with compressor cycle of the heat pump because: 
 
 
Answer: 
The capacity of the system varies too much with outdoor temperature. 
 
 
 
Q: The flame pattern a technician would expect to see on a properly operating single stage gas furnace equipped with "in shot" type burner is a:...
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NATE Gas Heating Exam Questions 2022/2023 | Consisting Of 50 Questions With Verified Answers From Experts
- Exam (elaborations) • 27 pages • 2022
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NATE Gas Heating Exam Questions 2022/2023 | Consisting Of 50 Questions With Verified Answers From Experts 
 
NATE Gas Heating Exam Questions 2022/2023 | Consisting Of 50 Questions With Verified Answers From Experts
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HVAC NATE Gas Heat Exam (New 2024/ 2025 Update) Questions and Verified Answers 100% Correct | A Grade
- Exam (elaborations) • 37 pages • 2024
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HVAC NATE Gas Heat Exam (New 2024/ 
2025 Update) Questions and Verified 
Answers 100% Correct | A Grade 
 
 
QUESTION 
 A damaged section of double wall vent pipe is to be replaced with a section produced by a 
different manufacturer: 
 
 
Answer: 
The installer should check the new section for compatible locking joints. 
 
 
 
QUESTION 
 If too much primary air is used the flame will: 
 
 
Answer: 
Lift off the burner. 
 
 
 
QUESTION 
 What is the problem when a flame on a high efficien...
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NATE Gas Heat Practice Questions with 100% Correct Answers | Latest Version 2024/2025 | Expert Verified | Ace the Test
- Exam (elaborations) • 29 pages • 2024
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NATE Gas Heat Practice Questions with 100% Correct 
Answers | Latest Version 2024/2025 | Expert Verified | 
Ace the Test
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NATE Gas Heat Practice Guide (2022/2023) Rated A+
- Exam (elaborations) • 29 pages • 2024
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What precautions are required when mounting any gas furnace on a wood platform in an attic? 
None 
The gas control valve may be damaged if exposed to an inlet pressure above what? 14 inch 
W.C. 
How many elbows and joints should a vent connector have? As few as possible to reduce 
resistance of flue gases. 
Under what conditions, if any may the technician route the exhaust of the furnace into the 
exhaust vent of the water heater: Under no conditions may you use the water heater exhaust 
vent. 
...
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NATE Gas Heating Exam | Questions and Answers 2023
- Exam (elaborations) • 16 pages • 2024
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NATE Gas Heating Exam | Questions and Answers 2023 
 
NATE Gas Heating Exam | Questions and Answers 2023 
 
NATE Gas Heating Exam | Questions and Answers 2023
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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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