Commercial refrigeration - Study guides, Class notes & Summaries

Commercial Refrigeration Certification AccuratIn a dry type (direct expansion) evaporator, liquid refrigerant must boil away as close to the end of the coil as possible in order to: A. operate at high efficiency. B. ensure that frost does not accumulate. C. sub-cool the compressor. D. ensure proper oil return. - ANSWER 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:...

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 ...

©BRAINBARTER 2024/2025 Commercial Refrigeration Certification Exam Questions With 100% Verified Answers. In a dry type (direct expansion) evaporator, liquid refrigerant must boil away as close to the end of the coil as possible in order to: A. operate at high efficiency. B. ensure that frost does not accumulate. C. sub-cool the compressor. D. ensure proper oil return. - answerA. operate at high efficiency. The difference between the temperature of the refrigerant boiling in the evapor...

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...

5% - ANSWER 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 kit - ANSWER When converting to POE from mineral oil, what can be used to determine residual mineral oil content? Global warming potential (GWP) - ANSWER Some refrigerants are now being phased out due to their HCFC - ANSWER Which currently used refrigerant category is quickly disappearing due to its ozone depletion p...

Commercial Refrigeration Exam II with Complete Solutions.

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...

NATE Industry Competency Exam: Commercial Refrigeration Questions With 100% Verified Answers. With the condensing pressure and compressor speed remaining constant, a decrease in suction pressure will cause a(n): a. Decrease in compressor capacity and decrease in current. b. Increase in compressor capacity and decrease in current. c. Increase in compressor capacity and increase in current. d. Decrease in compressor capacity and increase in current. - answerD An indication of non-condensa...

Commercial Refrigeration Certification Exam Questions with Correct Verified Solutions 100% Guaranteed Pass (Latest Update)Commercial Refrigeration Certification Exam Questions with Correct Verified Solutions 100% Guaranteed Pass (Latest Update)Commercial Refrigeration Certification Exam Questions with Correct Verified Solutions 100% Guaranteed Pass (Latest Update)Commercial Refrigeration Certification Exam Questions with Correct Verified Solutions 100% Guaranteed Pass (Latest Update)Commercial R...

8. NATE Industry Competency Exam Commercial Refrigeration Questions and Answers (2024 / 2025) (Verified Answers)