Free EPA 608 Practice Test (Core Exam)-4
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Free online EPA Practice Test (Core Exam)-4
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Question 1 of 12
1. Question
1 pointsRefrigerants …………… category have higher toxicity?
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Question 2 of 12
2. Question
1 pointsWhich atom of CFC damages the ozone layer?
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Question 3 of 12
3. Question
1 pointsHow much is the penalty per day for violation of Clean Air Act?
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Question 4 of 12
4. Question
1 pointsThe ability of a substance that absorbs moisture easily is called as ………………
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Question 5 of 12
5. Question
1 pointsIf the system heated during dehydration it …………….
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Question 6 of 12
6. Question
1 pointsWhether the composite refrigerant can be reclaimed?
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Question 7 of 12
7. Question
1 pointsA small refrigerant contains ……………. pounds or less refrigerant
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Question 8 of 12
8. Question
1 pointsDuring recovery if you smell strong odor, the most likely problem is ………..
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Question 9 of 12
9. Question
1 pointsIf there are contaminants in oil what should be done?
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Question 10 of 12
10. Question
1 pointsIt is important to ………… all refrigerant before evacuating a system.
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Question 11 of 12
11. Question
1 pointsrefrigerant cylinders never be stored in ……… areas.
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Question 12 of 12
12. Question
1 pointsIce occurred on slight glasses must be removed by using ………………
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EPA 608 Practice Test(Core Exam) Note-4
Dry-nitrogen addition to the system:
When the dry-nitrogen is adding to the system after evacuation, the nitrogen pressure should not exceed the design low side factory test pressure on the name plate. So when using a dry nitrogen always a pressure relief valve and pressure relief regulator should be placed on nitrogen tank to regulate the nitrogen pressure entering in the system.
Pressure relief valves must never be installed in series in any circuit. They always placed in parallel connection with various set points.