Commercial refrigeration - Study guides, Class notes & Summaries

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...

Commercial Refrigeration Ch 8 Questions and Answers (Graded A)Commercial Refrigeration Ch 8 Questions and Answers (Graded A)Commercial Refrigeration Ch 8 Questions and Answers (Graded A)Commercial Refrigeration Ch 8 Questions and Answers (Graded A) What are the two main weaknesses of 3Ø motors? - ANSWER - Phase loss and voltage unbalance. What formula is used to measure the percentage of voltage unbalance? - ANSWER - Vu = Vd / Va The amperage load rating of a compressor contactor is list...

Commercial Refrigeration Ch.5 Questions and Answers (Graded A)Commercial Refrigeration Ch.5 Questions and Answers (Graded A)Commercial Refrigeration Ch.5 Questions and Answers (Graded A)Commercial Refrigeration Ch.5 Questions and Answers (Graded A)What is the primary function of a metering device? - ANSWER - To provide refrigerant to the evaporator in a condition essential for efficient heat absorption. What are two ways the metering device accomplishes its primary function? - ANSWER - Change...

Commercial Refrigeration Certification | With 99 Questions and answers | Latest 2024/25

NATE Industry Competency Exam: Commercial Refrigeration – Qs And As

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. - D An indication of non-condensable gas in a refrigeration system is significantly: a. Lower-than-normal suction pressures. b. higher-than-no...

Commercial Refrigeration Ch 6 (Controls and Accessories) Questions and Answers 100% CorrectCommercial Refrigeration Ch 6 (Controls and Accessories) Questions and Answers 100% CorrectCommercial Refrigeration Ch 6 (Controls and Accessories) Questions and Answers 100% Correct Commercial refrigeration thermostats that sense the box air temperature have a temperature swing of about how many degrees? - ANSWER - 5 degrees Why does a thermostat that senses coil temperature prevent frost build-up on ...

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. - D An indication of non-condensable gas in a refrigeration system is significantly: a. Lower-than-normal suction pressures. b. higher-than-no...

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. - D An indication of non-condensable gas in a refrigeration system is significantly: a. Lower-than-normal suction pressures. b. higher-than-no...

8. NATE Industry Competency Exam Commercial Refrigeration correctly answered 2024With 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. - correct answer D An indication of non-condensable...