What is a heat exchanger - Study guides, Class notes & Summaries
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Ahit Exam 2024 Questions and Answers (Graded A+)
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The Problem with Stucco is that it____ - ANSWER-tends to crack 
 
How should corner moldings on aluminum sliding be installed - ANSWER-upper molding overlapping 
 
A hinge door that rubs the frame may have - ANSWER-loos hinge screws 
 
Discoloration or fogging in a window is an indication of - ANSWER-a leaking insulated glass seal 
 
what would not be the cause of a sag in a porch ceiling - ANSWER-rotting fascia board 
 
what is most highly recommended for repairing 
aluminum branch circuit wir...
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HVAC Gas Heat Certification Exam Prep (Latest 2024/ 2025 Update) 100% Correct Questions and Verified Answers| Grade A
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HVAC Gas Heat Certification Exam Prep (Latest 2024/ 2025 Update) 100% Correct Questions and Verified Answers| Grade A 
 
 
Q: Why is excess air supplied to all gas-burning appliance burners? 
 
 
Answer: 
 to ensure that there is enough air all all times. 
 
 
 
Q: The purpose of a gas regulator at a gas burning appliance is to? 
 
 
Answer: 
 B. decreases the pressure to the burner 
 
 
 
Q: Ture or False: All gas valves snap open and closed. 
 
 
Answer: 
 False 
 
 
 
Q: Which of the followin...
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NBRC TMC/CRT/RRT EXAM REVIEW TEST BANK Kettering Sample Test (A+ GRADED 100% VERIFIED) 2022/2023.
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NBRC TMC/CRT/RRT EXAM REVIEW TEST BANK Kettering Sample Test (A+ GRADED 100% VERIFIED) 2022/2023. NBRC TMC/CRT/RRT EXAM REVIEW TEST BANK 
1. A physician has ordered a 4yr old to receive 40% oxygen therapy. You would 
recomend which of the following oxygen delivery devices. 
B. Oxygen tent 
2. A water barometer is being used to record the barometric pressure. The 
water within the barometer column has meniscus formation. You would read 
the barometer pressure at the. 
A. Bottom of the meniscus...
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HVAC Gas Heat Certification Exam (Latest 2024/ 2025 Update) 100% Correct Questions and Verified Answers| Grade A
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HVAC Gas Heat Certification Exam (Latest 2024/ 2025 Update) 100% Correct Questions and Verified Answers| Grade A 
 
Q: What is the volume of flue gas produced from a 60,000 BTU/h Category I fan assisted Natural Gas furnace operating with 50% excess air? 
 
 
Answer: 
600 cu ft. 
 
 
 
Q: The purpose of a flue baffle is to 
 
 
Answer: 
Increase heat exchange 
 
 
 
Q: The LP gas pressure supplied to the appliance gas valve should be 
 
 
Answer: 
11 - 13 in. W.C. 
 
 
 
Q: An installed gas furna...
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Home Inspector National Exam Prep Questions and Answers Already Passed
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Home Inspector National Exam Prep 
Questions and Answers Already Passed 
It is important to maintain a positive grade away from the structure of at LEAST _______ inch 
drop per foot for six feet. A. 1/4 B. 1/2 C. 3/4 D. 1 1 
Which of the following BEST describes the report statement shown below? "The roof is in good 
condition for its age." A. Conclusion B. Recommendation C. Description D. Disclaimer 
Conclusion 
Which of the following conditions would be LEAST critical to your client's safet...
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HVAC Gas Heat Exam (Latest 2024/ 2025 Update) 100% Correct Questions and Verified Answers| Grade A
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HVAC Gas Heat Exam (Latest 2024/ 2025 Update) 100% Correct Questions and Verified Answers| Grade A 
 
Q: Why is specific gravity of a gas important? 
 
 
Answer: 
It affects the gas flow through the piping and through the orifice of the furnace. 
 
 
 
Q: What is an orifice and a spud? 
 
 
Answer: 
An orifice is a precisely sized hole in a gas fitting which gas flows from the manifold to the burners. 
A spud is another name for a gas fitting. 
 
 
 
Q: If both a light gas and a heavy gas are at...
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HVAC NATE Gas Heat Exam Prep (Latest 2024/ 2025 Update) 100% Correct Questions and Verified Answers| Grade A
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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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HVAC Gas Heat Certification Exam Prep (New 2024/ 2025 Update) Questions and Verified Answers 100% Correct | A Grade
- Exam (elaborations) • 29 pages • 2024
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HVAC Gas Heat Certification Exam Prep 
(New 2024/ 2025 Update) Questions and 
Verified Answers 100% Correct | A Grade 
 
 
QUESTION 
 Describe the difference between a single-rod (local sensing ) and dual-rod (remote sensing 
system as the pertain to flame rectification. 
 
 
Answer: 
 Flame rectification system can be classified as eatiher single rod. (local sensing) or dual rod 
(remote sensing) single rod, consist of an igniter and sensor all in one-rod, Dual-rod system use a 
separate ig...
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The Heating and Cooling Inspection: AHIT Questions with complete solutions
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When inspecting the heating equipment, the inspector is not required to _________. 
 
A. operate the system using normal operating controls 
B. open readily openable access panels provided by the manufacturer 
C. observe automatic safety controls 
D. operate heating systems when conditions may cause equipment damage CORRECT ANSWER D. operate heating systems when conditions may cause equipment damage 
 
What should an inspector do if they find a cracked heat exchanger? 
 
A. turn off the furnace ...
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NATE CORE STUDY GUIDE(correct answers)to pass
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NATE CORE STUDY GUIDE(correct answers)to passWhich of the following is not the product of incomplete combustion: 
Oxides of nitrogen 
 
 
 
An oil trap is required at the base of the discharge line of the vertical riser is _____ or above 
8 feet 
 
 
 
A diode allows current to flow in one direction: 
True 
 
 
 
1 Watt = _____ Btu 
3.41 
 
 
 
Current in a closed circuit is limited by which of the following: 
resistance 
 
 
 
An oil separator is located in the _____: 
Discharge line 
 
 
 
___...
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