EPA Section 608 — Type I
Recovery requirements and techniques: practice questions
Our EPA 608 Type I bank has 23 questions on this topic. Here are 5 of them with answers; the full mock exam draws from every topic, like the real one.
Question 1
What is 'system-dependent' (passive) recovery equipment?
- A vacuum pump
- Equipment that relies on the appliance's own compressor or internal pressure to recover refrigerant
- A reclaim facility
- A self-contained machine with its own compressor
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B. Equipment that relies on the appliance's own compressor or internal pressure to recover refrigerant — Self-contained (active) equipment has its own means to draw refrigerant out.
Question 2
When using a self-contained recovery machine on a small appliance, what should be checked first?
- That the condenser fan is unplugged
- That the machine's recovery cylinder is not over 80% full and the inlet valve is open
- That the cylinder contains oxygen
- That the appliance is running at full speed
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B. That the machine's recovery cylinder is not over 80% full and the inlet valve is open — Follow the manufacturer's instructions for every machine.
Question 3
When the appliance's compressor does not run and you use system-dependent recovery, how much refrigerant must be recovered (equipment after Nov 15, 1993)?
- 50%
- 80%
- 90%
- 100%
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B. 80% — 80% when the compressor is not operating; 90% when it is.
Question 4
With system-dependent recovery, what should be done when the appliance's compressor is not operating?
- Access both the high and low sides of the system
- Access only the low side
- Vent the high side
- Heat the recovery bag with a torch to drive the refrigerant out faster
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A. Access both the high and low sides of the system — Installing access valves on both sides helps recover more refrigerant.
Question 5
Using recovery equipment manufactured after November 15, 1993, how much refrigerant must be recovered from a small appliance when the compressor is NOT operating?
- 50%
- 80%
- 90%
- 100%
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B. 80% — Alternatively, the system can be evacuated to 4 inches of Hg vacuum.