Hvac unit 12 - Study guides, Class notes & Summaries

CPCU 500 - Simulated Exam Questions and Answers 100% Verified InterMountain Railroad carries logs, lumber, plywood, and other forest products in a six-state region in the Western part of the United States. InterMountain self-insures its derailment cargo losses. The risk manager at InterMountain ran a regression using ton-miles (one ton of cargo carried one mile) as the independent variable and dollar losses as the dependent variable. The independent variable is in units per 10,000 and the ...

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...

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...

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...

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...

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...

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...

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...

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...

Hvac Journeyman Exam Questions and Answers Updated 2024/2025 | 100% Verified. 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 a...