Hvac unit 12 - Study guides, Class notes & Summaries
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Hvac Journeyman Exam Questions and Answers Updated 2024/2025 (100% Verified)
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Hvac Journeyman Exam Questions and Answers Updated 2024/2025 (100% Verified) Every absorption refrigerating system supported from the ground shall rest on a 
concrete slab extending not less than _____ the adjoining ground level.(A) 3 inches 
below(B) 3 inches above (C) 6 inches below(D) 6 inches above. - ANSWER-B. Slab 
extending not less than 3" above the adjoining ground level. UMC Section 1106.2 
Any part of a venting system installed at an angle greater than 45 degrees from the 
vertical i...
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HVAC CONTRACTOR EXAM COMPLETE SOLUTIONS
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HVAC CONTRACTOR EXAM COMPLETE SOLUTIONS 
An instrument that measures potential differences between 2 points in an electrical circuit is called? 
A. potentiometer 
B. thermistor 
C. ohmeter 
D. voltmeter ️voltmeter 
This device uses a thermal sensing bulb at the outlet of the evaporator to sense temperature and 
control superheat 
A. automatic expansion valve 
B. thermostatic expansion valve 
C. low side float 
D. schraeder valve ️thermostatic expansion valve 
when installing a re...
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ASCS Exam with 100% correct answers 2024.
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Having a regular HVAC filter replacement plan can help: 
A. Protect the system components 
B. Double the system's airflow 
C. Humidify the airflow 
D. Sanitize the system components - ANSWER-A. Protect the system components 
 
According to ACR, the NADCA Standard, properly performed HVAC system cleaning services should: 
A. Eliminate all contamination 
B. Restore the internal insulation to an "as new" condition 
C. Restore the evaporator coil to its original pressure drop 
D. Render the syste...
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HVAC-R Midterm Exam Questions With Verified And Updated Solutions.
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HVAC-R Midterm Exam Questions With 
Verified And Updated Solutions. 
1.) Temperature can be defined as? - answerLevel of heat 
2.) Sensible heat causes? - answerRise in temp. 
3.) What direction does heat flow? - answerWarm to cold 
4.) Four types of temperature scales? - answerFahrenheit,Rankine,Celsius, & Kelvin 
5.) 1 BTU will raise 1lb. of water? - answer1 Degree 
6.) Latent heat causes? - answerChange of state 
7.) Pressure in a bourdon tube, what happens to gauges? - answerCauses them to s...
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Home Inspector National Exam Prep (questions and answers)complete
- Exam (elaborations) • 19 pages • 2023
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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 safety? A. A pin hole in the 
heat exchanger B. No handrails on an interior...
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Hvac Journeyman Exam Questions and Answers 100% Pass
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Hvac Journeyman Exam Questions and 
Answers 100% Pass 
Defects on gas piping or fittings shall be _____.(A) repaired(B) replaced or repaired and 
retested(C) repaired by a certified welder(D) ignored, as the operating pressure is much 
less than the air test. - Correct Answer ️️ -B. Fitting shall be replaced or repaired and 
retested. UMC Section 1316.4.3 
Every absorption refrigerating system supported from the ground shall rest on a 
concrete slab extending not less than _____ the adjoinin...
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HVAC JOURNEYMAN PREP TEST EXAM QUESTIONS AND ANSWERS WITH COMPLETE SOLUTIONS VERIFIED LATEST UPDATE
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HVAC JOURNEYMAN PREP TEST EXAM QUESTIONS AND ANSWERS WITH COMPLETE SOLUTIONS VERIFIED LATEST UPDATE 
 
 
A listed smoke damper designed to resist the passage of smoke shall be provided at each point in a duct or air transfer opening penetrates a: (A)smoke barrier wall (B)fire rated wall (C)interior wall (D)corridor wall 
Corridor wall (IMC 607.5.4) 
Flexible air duct may be what length? (A)10' (B)2' (C)14' (D)6' 
14' (IMC 603.6.1.1) 
The maximum vertical distance between the front lower lip...
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Hvac Journeyman Exam 2024 Questions and Correct Answers.
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Hvac Journeyman Exam 2024 Questions and Correct Answers. 
Defects on gas piping or fittings shall be _____.(A) repaired(B) replaced or repaired and 
retested(C) repaired by a certified welder(D) ignored, as the operating pressure is much 
less than the air test. - ANSWER-B. Fitting shall be replaced or repaired and retested. 
UMC Section 1316.4.3 
Every absorption refrigerating system supported from the ground shall rest on a 
concrete slab extending not less than _____ the adjoining ground leve...
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Home Inspector National Exam Prep New Updated 2024 Complete;(Graded A+)
- Exam (elaborations) • 17 pages • 2024
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Home Inspector National Exam Prep New 
Updated 2024 Complete;(Graded A+) 
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 - Answer ️️ -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 - 
Answer ️️ -Conclusion 
Which of the following conditions would be LEA...
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Home Inspector National Exam Prep 100% Accurate!!
- Exam (elaborations) • 14 pages • 2024
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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 - ANSWER 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 - ANSWER Conclusion 
 
Which of the following conditions would be LEAST critical to your client's safety? A. A pin hole in the heat exchanger B. No handrails...
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