Reta caro - Study guides, Class notes & Summaries
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RETA CARO Chapter 1 Exam Questions With Verified Solutions
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RETA CARO Chapter 1 Exam Questions With Verified Solutions 
Purpose of a Refrigeration System 
Achieve or maintain proper temperatures in a refrigeration process used for cooling/freezing applications 
 
 
Ton of Refrigeration 
Rate BTUs transfer per unit time 
288,000 BTUs/24 Hours 
12,000 BTUs/12 Hours 
200 BTUs/1 Minute 
 
rate of refrigeration or cooling 
 
 
Pressure 
Force per unit area. 
 
 
PSIA 
Absolute pressure; measures pressure from zero pressure 
 
 
PSIG 
Gauge pressure, uses atmo...
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Reta Caro Study Guide JH Exam Questions With Verified Solutions
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Reta Caro Study Guide JH Exam Questions With Verified Solutions 
Which is equal to 22 Psig? 
36.7 Psia 
 
 
What is the Latent Heat of Vaporization?(H2O) 
970 Btu's 
 
 
What product requires the most energy to lower 1 lb. by 1 degree? 
water 
 
 
What happens when pressure on a liquid is increased? 
Boiling point goes up/Saturation temp. goes up 
 
 
What happens when vapor is Superheated? 
Temperature above saturated/it gains sensible heat 0.5x1 degree F 
 
 
What causes heat to move from one...
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RETA CARO EXAM 2024 WITH ACTUAL CORRECT QUESTIONS AND VERIFIED DETAILED ANSWERS BY EXPERTS |ALREADY GRADED A+ |NEWEST |LATEST UPDATE | GUARANTEED PASS
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RETA CARO EXAM 2024 WITH 
ACTUAL CORRECT QUESTIONS 
AND VERIFIED DETAILED 
ANSWERS BY EXPERTS |ALREADY 
GRADED A+ |NEWEST |LATEST 
UPDATE | GUARANTEED PASS
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RETA CARO Exam Questions With Answers
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RETA CARO Exam Questions With Answers 
What is the purpose of a refrigeration system? 
To maintain a temperature 
 
 
Operators must keep refrigeration systems operating safely and efficiently. Which of the following best describes the areas of required knowledge for this to be possible? 
Basic physical principles, interpretation of information from temperature and pressure gauges, basic operating principles. 
 
 
Mechanical refrigeration is a series of steps that: 
Moves heat energy from a spac...
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RETA CARO Test
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RETA CARO Test 
 
Which refrigerant has the highest mass flow requirement at the same evaporator and condensing 
temperature? - CFC-12 
 
which refrigerant is the first to be phased out by Montreal Protocol - CFC-12 
 
As the ratio between the evaporator and condensing pressure increases - the theoretical 
discharge temperature increases 
 
Under the Montreal Protocol - as long as a technician does not perform work on the 
refrigerant containing portions of a system they do not need to be certif...
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RETA CARO Chapter 2 Exam With Complete Solutions
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RETA CARO Chapter 2 Exam With Complete Solutions 
Four required components of a mechanical refrigeration system 
Expansion device, evaporator, compressor, condenser 
 
 
Purpose of the Expansion Device 
1) To separate the high pressure side of the system and the low pressure side of the system 
2) Responsible for metering the proper amount of liquid into the evaporator 
 
 
Flash Gas 
The vapor that results from the expansion process (no practical cooling is done by this item) 
 
 
Purpose of Ev...
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RETA CARO EXAM QUESTIONS WITH 100% VERIFIED ANSWERS
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RETA CARO EXAM QUESTIONS WITH 100% VERIFIED ANSWERS 
Which refrigerant has the highest mass flow requirement at the same evaporator and condensing temperature? 
CFC-12 
 
 
which refrigerant is the first to be phased out by Montreal Protocol 
CFC-12 
 
 
As the ratio between the evaporator and condensing pressure increases 
the theoretical discharge temperature increases 
 
 
Under the Montreal Protocol 
as long as a technician does not perform work on the refrigerant containing portions of a sy...
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RETA CARO EXAM 2024 WITH ACTUAL CORRECT QUESTIONS AND VERIFIED DETAILED ANSWERS BY EXPERTS |ALREADY GRADED A+ |NEWEST |LATEST UPDATE | GUARANTEED PASS
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RETA CARO EXAM 2024 WITH 
ACTUAL CORRECT QUESTIONS 
AND VERIFIED DETAILED 
ANSWERS BY EXPERTS |ALREADY 
GRADED A+ |NEWEST |LATEST 
UPDATE | GUARANTEED PASSRETA CARO EXAM 2024 WITH 
ACTUAL CORRECT QUESTIONS 
AND VERIFIED DETAILED 
ANSWERS BY EXPERTS |ALREADY 
GRADED A+ |NEWEST |LATEST 
UPDATE | GUARANTEED PASSRETA CARO EXAM 2024 WITH 
ACTUAL CORRECT QUESTIONS 
AND VERIFIED DETAILED 
ANSWERS BY EXPERTS |ALREADY 
GRADED A+ |NEWEST |LATEST 
UPDATE | GUARANTEED PASSRETA CARO EXAM 2024 ...
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RETA CARO QUESTIONS AND ANSWERS ALREADY PASSED
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RETA CARO QUESTIONS AND ANSWERS ALREADY PASSED 
Which refrigerant has the highest mass flow requirement at the same evaporator and condensing temperature? CFC-12 
which refrigerant is the first to be phased out by Montreal Protocol CFC-12 
As the ratio between the evaporator and condensing pressure increases the theoretical discharge temperature increases 
Under the Montreal Protocol as long as a technician does not perform work on the refrigerant containing portions of a system they do not need...
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RETA CARO Exam (100 out of 100) Questions and Verified Answers (GRADED A)
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RETA CARO Exam (100 out of 100) Questions and Verified Answers (GRADED A)
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