Evaporator Study guides, Class notes & Summaries
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HVAC (EPA Certification Exam Section 608) Questions With Complete Solutions
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How many types of HVAC certifications are there? correct answer: There are 4 types. 
 
What does a metering device do? correct answer: The metering device causes a reduction in pressure, and therefore a reduction in saturation temperature. 
 
What is absorbed in the evaporator? correct answer: Heat is absorbed in the evaporator. 
 
What happens in the evaporator? correct answer: Heat is absorbed in the evaporator and causes the refrigerant to boil from liquid to vapor. 
 
At the outlet of th...
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NATE Heat Pump Exam Questions With Correct Answers Latest Updated 2024/2025 (GRADED A+)
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NATE Heat Pump Exam Questions With Correct Answers Latest Updated 2024/2025 (GRADED A+) Which of the following components is exclusive to the heat pump? 
A: Condenser 
B: Oil separator 
C: Reversing valve 
D: Accumulator: C: Reversing valve 
4. Which of the following airflow rates is the most reasonable for a heat pump 
system operating in the heating cycle? 
A: 200 cfm per ton 
B: 300 cfm per ton 
C: 400 cfm per ton 
3 / 15 
D: 450 cfm per ton: D: 450 cfm per ton 
5. During the heat pump's coo...
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Z-51 Test Questions and Answers Latest Updated 2023/2024 Grade A+
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Z-51 Test Questions and Answers Latest Updated 2023/2024 Grade A+. The ratio of actual pressure of water pressure in the atmosphere to the 
saturated pressure of given temperature is 
A) partial pressure. 
B) relative humidity. 
C) humidity effect. 
D) absolute humidity.: 
3. The total amount of heat to be removed from the refrigerant in a condenser 
equals the heat picked up in the 
A) evaporator plus the heat of compression. 
B) evaporator. 
C) evaporator plus the heat of included non-condensa...
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EPA 608 CERTIFICATION CORE Test Bank 2023/2024 260 QUESTIONS AND ANSWERS (Graded A+)
- Exam (elaborations) • 57 pages • 2023
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EPA 608 CERTIFICATION 
 
Halons were completely phased out by ______ : 
1994 
1995 
1987 
2000 - √Answer :1994 
 
Quiz :Recovered refrigerant is stored in which of the following painted tank: 
 
Gray with yellow top 
Yellow with gray top 
Yellow with blue top 
Blue with yellow top - √Answer :Gray with yellow top 
 
Quiz :If your recovery unit does not have a sub-cooling feature recovery rate will be _____ : 
Recovery rate is independent 
Slower 
Faster - √Answer :Slower 
 
Quiz :TXV va...
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NATE Industry Competency Exam: Commercial Refrigeration | 100 Questions with 100% Correct Answers
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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...
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EPA 608 Certification Core Test Bank 2023/2024 260 Questions and Answers Graded A
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EPA 608 Certification Core Test Bank 2023/2024 260 Questions and Answers Graded A 
 
 
EPA 608 CERTIFICATION 
Halons were completely phased out by ______ : 
1994 
1995 
1987 
2000 - √Answer :1994 
 
Quiz :Recovered refrigerant is stored in which of the following painted tank: 
 
Gray with yellow top 
Yellow with gray top 
Yellow with blue top 
Blue with yellow top - √Answer :Gray with yellow top 
 
Quiz :If your recovery unit does not have a sub-cooling feature recovery rate will be ___...
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Q-01 FDNY Exam With 100% Correct Answers 2023/2024 Latest Graded A+.
- Exam (elaborations) • 24 pages • 2023
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Q-01 FDNY Exam With 100% Correct Answers 2023/2024 Latest Graded A+. 
Rupture members, when used in parallel with a relief valve, are not to exceed _____% 
above designed working pressure - Correct Answer-20% 
Butterfly valve: where can it be used? - Correct Answer-Can be used on the inlet and 
outlet of a water pump 
What electrical motor protection device automatically resets itself? - Correct AnswerThe thermal protector 
746 watts equals how many kilowatt hours? - Correct Answer-.746 kilowatt...
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ABSA: 4th Class Part B - Comprehensive Exam 2 (150 Multiple Choice, 4th Class Part B , Units 1-12) Questions And Answers Verified 100% Correct!!
- Exam (elaborations) • 28 pages • 2023
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ABSA: 4th Class Part B - Comprehensive Exam 2 (150 Multiple Choice, 4th Class Part B , Units 1-12) Questions And Answers Verified 100% Correct!! 
 
What must be located outside a Class T machinery room? 
Select one: 
 
a. Spare flashlights 
b. Disposable coveralls 
c. Machinery shut off switch 
d. Light switches 
c 
Degradation of heat transfer fluid of a hot oil system will begin to occur if: 
Select one: 
 
a. The oil filter is not serviced regularly 
b. The oil temperature is above a specifie...
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Q-01 FDNY Exam Questions With Correct Answers Latest 2023/2024 (Graded)
- Exam (elaborations) • 24 pages • 2023
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Q-01 FDNY Exam Questions With Correct Answers Latest 2023/2024 (Graded) Rupture members, when used in parallel with a relief valve, are not to exceed _____% 
above designed working pressure - Correct Answer-20% 
Butterfly valve: where can it be used? - Correct Answer-Can be used on the inlet and 
outlet of a water pump 
What electrical motor protection device automatically resets itself? - Correct AnswerThe thermal protector 
746 watts equals how many kilowatt hours? - Correct Answer-.746 kilowa...
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Q-01 FDNY Exam With 100% Correct Answers 2023/2024 Latest Graded A+.
- Exam (elaborations) • 24 pages • 2023
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Q-01 FDNY Exam With 100% Correct Answers 2023/2024 Latest Graded A+. 
Rupture members, when used in parallel with a relief valve, are not to exceed _____% 
above designed working pressure - Correct Answer-20% 
Butterfly valve: where can it be used? - Correct Answer-Can be used on the inlet and 
outlet of a water pump 
What electrical motor protection device automatically resets itself? - Correct AnswerThe thermal protector 
746 watts equals how many kilowatt hours? - Correct Answer-.746 kilowatt...
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