- Study guides, Class notes & Summaries

Test bank for Commercial Refrigeration for Air Conditioning Technicians 2th edition all chapters by Dick wirz

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779 pages

Written in 2024/2025

Grade A+

Tutoringclass

Commercial Refrigeration FINAL TEST Exam Questions and Answer 100% Pass How is the cooling effect in a mechanical refrigeration system produced? - Evaporation of liquid refrigerant into vapor What is the primary purpose of a compressor? - It circulates and pressurizes the refrigerant vapor before the vapor Is condensed for re use Name another function that must be performed by the compressor - Is raise the pressure and temperature of the refrigerant vapor. This allows the refrigerant to ...

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13 pages

Written in 2024/2025

Grade A+

JOSHCLAY

perate at high efficiency. B. ensure that frost does not accumulate. C. sub-cool the compressor. D. ensure proper oil return. - A. operate at high efficiency. The difference between the temperature of the refrigerant boiling in the evaporator and the temperature at the evaporator outlet is known as: A. evaporator superheat. B. latent heat. C. evaporator sub-cooling. D. sublimation. - A. evaporator superheat. An expansion device that is stuck open will cause: A. low suction pressure

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34 pages

Written in 2024/2025

Grade A+

JOSHCLAY

Commercial Refrigeration Exams Compiled (Package Deal) With Complete Solutionscommercial Refrigeration Exams Compiled (Package Deal) With Complete Solutionscommercial Refrigeration Exams Compiled (Package Deal) With Complete Solutionscommercial Refrigeration Exams Compiled (Package Deal) With Complete Solutionscommercial Refrigeration Exams Compile

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39 items

NursingTutor1

Commercial Refrigeration FINAL TEST 2024/2025 Questions and Answers (Graded A)Commercial Refrigeration FINAL TEST 2024/2025 Questions and Answers (Graded A)Commercial Refrigeration FINAL TEST 2024/2025 Questions and Answers (Graded A)Commercial Refrigeration FINAL TEST 2024/2025 Questions and Answers (Graded A) How is the cooling effect in a mechanical refrigeration system produced? - ANSWER - Evaporation of liquid refrigerant into vapor What is the primary purpose of a compressor? - ANSWER ...

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9 pages

Written in 2024/2025

Grade A

NursingTutor1

Commercial Refrigeration Units 29 and 30 with Complete Questions and AnswersCommercial Refrigeration Units 29 and 30 with Complete Questions and AnswersCommercial Refrigeration Units 29 and 30 with Complete Questions and Answers Which of the following is an indicator of a leaking refrigerant system? - ANSWER - Metal-to-metal contact points. Why will the compressor on a leaking system become overheated? - ANSWER - There is a reduced amount of coolant. How are trigger rates established? - A...

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6 pages

Written in 2024/2025

Grade A+

NursingTutor1

Commercial Refrigeration Unit 16 Questions and Answers 100% CorrectCommercial Refrigeration Unit 16 Questions and Answers 100% CorrectCommercial Refrigeration Unit 16 Questions and Answers 100% CorrectHow deep should the condensate drain trap be? - ANSWER - 3 inches deep (teacher agrees, this answer is bullshit) Commercial refrigeration equipment for ice cream storage typically uses: - ANSWER - Low temperature evaporators The wet coil static pressure drop is - ANSWER - Higher than the dry ...

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6 pages

Written in 2024/2025

Grade A+

NursingTutor1

Commercial Refrigeration Ch 11 (Walk-in System Sizing and Installation) with Complete SolutionsCommercial Refrigeration Ch 11 (Walk-in System Sizing and Installation) with Complete SolutionsCommercial Refrigeration Ch 11 (Walk-in System Sizing and Installation) with Complete SolutionsCommercial Refrigeration Ch 11 (Walk-in System Sizing and Installation) with Complete Solutions Four inches of urethane insulation is equivalent to how many inches fiberglass insulation? - ANSWER - 10 inches Why...

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3 pages

Written in 2024/2025

Grade A+

NursingTutor1

Commercial Refrigeration Final Exam Questions From Quizzes with 100% Correct AnswersCommercial Refrigeration Final Exam Questions From Quizzes with 100% Correct AnswersCommercial Refrigeration Final Exam Questions From Quizzes with 100% Correct Answers___ are snap-acting valves that open and close very fast when the electrical energy is applied to the coil. - ANSWER - Solenoid valves A suction line accumulator is used to ensure that liquid refrigerant enters the compressor. - ANSWER - False ...

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7 pages

Written in 2024/2025

Grade A+

NursingTutor1

Commercial refrigeration Chapter 10 Questions and Answers 100% CorrectCommercial refrigeration Chapter 10 Questions and Answers 100% CorrectCommercial refrigeration Chapter 10 Questions and Answers 100% Correct What is the proper temperature of a meat case? - ANSWER - 28 to32° What is a parallel rack system - ANSWER - A system of multiple compressors that share a common source of refrigerant and oil to refrigerate a group of cases. Why are parallel rack systems used in supermarket refrig...

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4 pages

Written in 2024/2025

Grade A+

NursingTutor1

Commercial Refrigeration Exam Questions and Answers (Graded A)Commercial Refrigeration Exam Questions and Answers (Graded A)Commercial Refrigeration Exam Questions and Answers (Graded A)Commercial Refrigeration Exam Questions and Answers (Graded A) The defrost cycle is normally terminated - ANSWER - Based on either temperature, pressure, or time Why would a 35 degree meduim temperature case need to defrost? - ANSWER - The coil temperature for a 35 degree box opertes below freezing The low...

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7 pages

Written in 2024/2025

Grade A+

NursingTutor1

Commercial Refrigeration Chapter 8 Review Questions and Answers 100% CorrectCommercial Refrigeration Chapter 8 Review Questions and Answers 100% CorrectCommercial Refrigeration Chapter 8 Review Questions and Answers 100% CorrectCommercial Refrigeration Chapter 8 Review Questions and Answers 100% Correct What are the two main weaknesses of 3Ø motors? - ANSWER - Phase loss and voltage imbalance. What formula is used to measure the percentage of voltage unbalance? - ANSWER - Vu = Vd ÷ Va W...

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5 pages

Written in 2024/2025

Grade A+

NursingTutor1

Commercial Refrigeration Final Study Guide with Complete SolutionsCommercial Refrigeration Final Study Guide with Complete SolutionsCommercial Refrigeration Final Study Guide with Complete SolutionsCommercial Refrigeration Final Study Guide with Complete Solutions The evaporator in a refrigeration system must be colder Than the refrigerated space in order to absorb heat. - ANSWER - True The rule of thumb for low temperature refrigeration is 5 degrees superheat. - ANSWER - True Capillary t...

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9 pages

Written in 2024/2025

Grade A+

NursingTutor1

Commercial Refrigeration Ch 1 & 2 Questions and Answers 100% CorrectCommercial Refrigeration Ch 1 & 2 Questions and Answers 100% CorrectCommercial Refrigeration Ch 1 & 2 Questions and Answers 100% CorrectCommercial Refrigeration Ch 1 & 2 Questions and Answers 100% CorrectWhat is considered the "normal" box temperature of a walk-in refrigerator? - ANSWER - 35°F-37°F What is considered the "normal" box temperature of a reach-in refrigerator? - ANSWER - 38°F-40°F What is considered th...

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5 pages

Written in 2024/2025

Grade A+

NursingTutor1

5%️️If converting from mineral oil to POE oil, what is considered to be the industry standard for residual mineral oil content? Refractometer Oil conversion test kit️️When converting to POE from mineral oil, what can be used to determine residual mineral oil content? Global warming potential (GWP)️️Some refrigerants are now being phased out due to their HCFC️️Which currently used refrigerant category is quickly disappearing due to its ozone depletion potential? 404a️️...

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15 pages

Written in 2024/2025

Grade A+

johndocs

Commercial Refrigeration Final Study Guide A+ GRADED QUESTIONS AND ANSWERS/2024

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7 pages

Written in 2024/2025

Grade A+

STUVEX

Commercial Refrigeration Final Study Guide Questions And Correct Answers Verified Latest Grade A + Commercial Refrigeration Final Study Guide Questions And Correct Answers Verified Latest Grade A + Commercial Refrigeration Final Study Guide Questions And Correct Answers Verified Latest Grade A +

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93 pages

Written in 2023/2024

Grade A+

tevstudy234

Refrigeration Air Conditioning Work Ready Certification Exam Questions and Answers

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9 pages

Written in 2023/2024

Grade A+

Zanaya

Commercial Refrigeration Exam Questions with Complete and Correct Answers

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5 pages

Written in 2023/2024

Grade A+

Zanaya

Commercial refrigeration mid term Exam Questions and Answers

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12 pages

Written in 2023/2024

Grade A+

Zanaya