Information on Small Appliance Practice Test 3
This is the last test of three in our series of free Type 1 Small-Appliance practice tests. As such it contains only 16 questions compared to the others which have 25. Like our other EPA 608 series of practice tests, any new unique questions we obtain will be added to this last test in the series.
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* NOTE: Having a pressure-temperature reference for commonly used refrigerants is required to answer some of the questions on our practice tests unless you have an amazing memory.
- This practice test is free. Take it as often as you like.
- Contains 16 questions.
- Pressing the submit button immediately returns your resulting score.
- Passing score is 70%. (12 out of 16 correct)
- Correct answer information is provided for questions answered incorrectly.
- Good luck!
| Trade Category: | HVACR |
| Test Category: | EPA 608 Certification |
| Test Subject: | Type 1 – Small Appliance |
| Test Number: | 3 of 3 |
| Questions on Test: | 16 |
| Passing Score: | 70% |
#1. If you are recovering refrigerant from a frost-free refrigerator, you should
Correct answer is C: turn on the defrost heater to vaporize any trapped liquid.
If you are recovering refrigerant from a frost-free refrigerator, you should turn on the defrost heater to vaporize any trapped liquid.
#2. When checking for the existence of nondensable gases inside a recovery cylinder, why is it proper procedure to allow the temperature of the cylinder to stabilize at room temperature before taking a pressure reading?
Correct answer is D: Because any comparisins to a pressure-temperature chart is only valid if both the pressure and temperature of the refrigerant are stable.
When checking for the existence of nondensable gases inside a recovery cylinder, why is it proper procedure to allow the temperature of the cylinder to stabilize at room temperature before taking a pressure reading? Because any comparisons to a pressure-temperature chart is only valid if both the pressure and temperature of the refrigerant are stable.
#3. Whenever nitrogen is used to pressurize or blow debris out of a system, the nitrogen
Correct answer is B: can be vented.
Whenever nitrogen is used to pressurize or blow debris out of a system, the nitrogen can be vented.
#4. If a reclamation processing plant is given a recovery tank containing a mixture of refrigerants, they can
Correct answer is D: Both A and B
If a reclamation processing plant is given a recovery tank containing a mixture of refrigerants, they can:
- Refuse to process the refrigerant and return it.
- Agree to destroy the refrigerant, but typically a substantial fee is charged for this.
#5. Refrigerant recovery devices must be equipped with low-loss fittings. Low-loss fittings are used to
Correct answer is A: connect the recovery device to an appliance and are manually or automatically closed to prevent refrigerant loss when connecting/disconnecting hoses.
Refrigerant recovery devices must be equipped with low-loss fittings. Low-loss fittings are used to connect the recovery device to an appliance and are manually or automatically closed to prevent refrigerant loss when connecting/disconnecting hoses.
#6. Recovery or recycling equipment which was manufactured after November 1 1993, and is used to recover refrigerant from small appliances must be used to
Correct answer is D: Both B and C.
Recovery or recycling equipment which was manufactured after November 1 1993, and is used to recover refrigerant from small appliances must be used to:
- Recover 80 percent of the refrigerant from the appliance if the appliance compressor is inoperable.
- Recover 90 percent of the refrigerant from the appliance if the appliance compressor is operational.Bv
#7. The sale of refrigerants is
Correct answer is D: restricted to technicians who are EPA certified in refrigerant recovery.
The sale of refrigerants is restricted to technicians who are EPA certified in refrigerant recovery.
#8. A recovery cylinder which is half full of recovered R-410a at 90F, in the absense of noncondensables, will be pressurized to
Correct answer is C: 300 psig
A recovery cylinder which is half full of recovered R-410a at 90F, in the absense of noncondensables, will be pressurized to 300 psig
#9. Which refrigerants can be mixed?
Correct answer is D: Refrigerants can never be mixed.
Which refrigerants can be mixed? Refrigerants can never be mixed.
#10. When transporting refrigerants, DOT (Department of Transportation) Regulation number 49 CFR requires _________ to be recorded on the shipping papers for hazard class 2.2, Nonflammable Compressed Gases.
Correct answer is C: Number of cylinders of each gas.
When transporting refrigerants, DOT (Department of Transportation) Regulation number 49 CFR requires the number of cylinders of each gas to be recorded on the shipping papers for hazard class 2.2, Nonflammable Compressed Gases.
#11. If a large leak of refrigerant occurs in an enclosed area and no self-contained breathing apparatus is available, the technician should then
Correct answer is C: vacate and ventilate the area.
If a large leak of refrigerant occurs in an enclosed area and no self-contained breathing apparatus is available, the technician should then vacate and ventilate the area.
#12. When recovering refrigerant from a household refrigerator where the compressor does not run, it is recommended that low side and high side access valves be installed because ___________.
<p>Correct answer is D: Both A and B</p>
<p>When recovering refrigerant from a household refrigerator where the compressor does not run, it is recommended that low side and high side access valves be installed because:</p>
<ul>
<li>it can enhance the speed of recovery.</li>
<li>it may be necessary in order to achieve required recovery efficiency.</li>
</ul>
#13. A recovery cylinder which is half full of R-12 at normal room temperature, about 75F, in the absence of non-condensibles, will be pressurized to
Correct answer is B: 75 psig
A recovery cylinder which is half full of R-12 at normal room temperature, about 75F, in the absence of non-condensibles, will be pressurized to 75 psig.
#14. When using nitrogen, the nitrogen tank should always be equipped with a
Correct answer is A: regulator.
When using nitrogen, the nitrogen tank should always be equipped with a regulator.
#15. To avoid accidental removal of liquid refrigerant when recovering vapor from a system, using a self-contained (active) recovery device that cannot handle liquid refrigerant, you should draw vapor from the
Correct answer is C: high side.
To avoid accidental removal of liquid refrigerant when recovering vapor from a system, using a self-contained (active) recovery device that cannot handle liquid refrigerant, you should draw vapor from the high side.
#16. If you install an access fitting on to a sealed system,
Correct answer is A: the fitting should be leak tested before proceeding with recovery.
If you install an access fitting on to a sealed system, the fitting should be leak tested before proceeding with recovery.
More Type 1 Small Appliance Practice Tests
Type 1 Test 1
Type 1 Test 2
Type 1 Test 3
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