Question 1: Refrigerant is a good ……………..
- Insulator
- Conductor
- Semi conductor
- Resistor
EPA 608
NEC 2023
EPA 608 Core Exam Practice Test 14
Free EPA 608 Practice Test ( CORE Exam)-14
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epa 608 practice tests
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Frequently Asked Questions
Yes — completely free with no account needed.
The EPA 608 certification is required by law for any technician who purchases or handles refrigerants. It covers safe handling, leak detection, recovery, and environmental regulations.
Type I covers small appliances (≤5 lbs refrigerant), Type II covers high-pressure systems, Type III covers low-pressure systems, and Universal covers all three. Most HVAC technicians pursue Universal certification.
You must score at least 70% on each section of the exam. The Universal exam has four parts: core, Type I, Type II, and Type III.
13
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20 min
Time
70%
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TimeEPA 608 Core Exam Practice Test 14 — Question List
Question 2: If vacuum pump is used in passive recovery what should be introduced in system to increase the pressure and avoid moisture freezing?
- Dry nitrogen
- CFC refrigerant
- Hydrogen
- Carbon
Question 3: What is the main function condenser in the refrigeration system?
- To store liquid refrigerant
- To remove heat from refrigerant
- To remove moisture from refrigerant
- To add heat to the refrigerant
Question 4: Which of the following refrigerant has highest Global Warming Potential (GWP)?
- R-12
- R-134a
- R - 22
- R-152a
Question 5: Venting HFC’s since ………………… is violation of section 608 of federal clean air act.
- July 1, 1992
- November 14, 1994
- November 15, 1995
- August 16, 1990
Question 6: The temperature of the liquid refrigerant entering in the evaporator must be ………….. surrounding air.
- Less than
- More than
- Equal to
Question 7: The high pressure gauge usually measures ………………… pressure
- Discharge pressure
- Suction pressure
Question 8: If the high pressure gauge reads unusual high pressure in the refrigeration system the probable cause is ……………..
- Defective compressor
- Insufficient refrigerant
- Condenser fan motor failure
- Expansion valve failure
Question 9: Systems containing 10 kg of HFC must be leak tested ………….
- Annually
- Twice a year
- Thrice a year
- Two years once
Question 10: The mixed refrigerants can be separated and reclaimed.
- True
- False
Question 11: If a refrigeration system had a major component failure
- an oil sample should be taken and analyzed
- immediately refrigerant should recovered
- a refrigerant sample should be taken and analyzed
- immediately system should be purged with dry nitrogen
Question 12: What is to be likely occurred in the refrigeration system when the strong odor is detected during the recovery process?
- A compressor burnout
- A condenser fan motor burnout
- Expansion valve failure
- Oil is mixed with refrigerant
Question 13: During evacuation of a system what is the benefit of using small length and large diameter gauge set hose?
- reduces the pressure drop and reduces the evacuation time
- reduces the pressure drop and increases the evacuation time
- reduces the refrigerant leakage
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