Free Practice Quiz Question List

2 Refrigerants and Environmental Regulations Online Quiz Questions

Use this free practice quiz with 20 questions to review 2 Refrigerants and Environmental Regulations, test your knowledge, and prepare for your next test or exam.

20 questions

True or false

1 point

True or false: Even though AHRI Guideline N recommends a common light gray-green color for refrigerant containers, a technician should not rely on cylinder color alone to identify the refrigerant.

A
True
B
False

True or false

1 point

True or false: Because new production and import of most HCFCs ended in 2020, every existing HCFC system must be removed immediately.

A
True
B
False

Fill in the blank

1 point

Unlike HCFCs, HFCs contain hydrogen, fluorine, and carbon but .

Choose one

1 point

A refrigerant is listed as acceptable under SNAP for a particular end-use. What should an equipment operator conclude about separate AIM Act restrictions that may apply to that use?

A
An acceptable SNAP listing automatically overrides all restrictions under the AIM Act.
B
A SNAP listing does not override a separate applicable restriction under the AIM Act.
C
SNAP applies only to refrigerants that deplete ozone.
D
A SNAP listing confirms that a refrigerant is safe for every piece of equipment.

Fill in the blank

1 point

Under Section 608, refrigerant sold for reuse generally must be to the required purity by an EPA-certified reclaimer.

Written response

1 point

What acronym names the EPA program that evaluates refrigerant substitutes for specific end-uses?

Choose one

1 point

A technician is considering replacing a specified refrigerant with another that has a similar name and pressure. Which approach is appropriate before making the substitution?

A
Use the refrigerant with a similar name, then check the pressure after charging.
B
Choose whichever refrigerant is easiest to obtain, provided it is in the same family.
C
Check the equipment maker's specified refrigerant and whether applicable rules allow that refrigerant for the end-use.
D
Use a refrigerant with a similar operating pressure; safety classifications need not be checked if pressures match.

Choose one

1 point

A U.S. service company has an existing R-22 system and access to refrigerant that may legally be used for servicing. Which statement best describes the effect of the HCFC phaseout?

A
The phaseout requires immediate removal of every system that uses an HCFC.
B
An existing system may be serviced when refrigerant is available and its use is permitted.
C
New HCFC production and import continue without restriction for existing systems.
D
Any recovered HCFC can be used for any purpose without regard to applicable rules.

Choose all

1 point

Select all statements that correctly interpret the letter and number in ASHRAE refrigerant safety groups.

A
In A2L, A indicates higher toxicity and 2L indicates no flame propagation.
B
In A2L, A indicates lower toxicity and 2L identifies a lower-flammability subclass with low burning velocity.
C
Class 3 indicates higher flammability than class 2L.
D
An A1 classification establishes that a refrigerant has low global-warming potential.

Choose one

1 point

R-410A is classified A1 and does not deplete ozone, but many HFCs have high GWP. Which conclusion correctly distinguishes the meaning of A1 from environmental impact?

A
A1 means R-410A has no ozone-depletion potential and low GWP.
B
A1 describes toxicity and flammability; it does not establish environmental impact.
C
A1 means R-410A is highly toxic but nonflammable.
D
A1 indicates that R-410A is an HFO.

Choose all

1 point

Select all statements that correctly describe refrigerant families and their properties.

A
HFCs contain no chlorine, do not deplete ozone, and many have high GWP.
B
Every refrigerant that does not deplete ozone has low GWP and is nonflammable.
C
HFOs are often used as lower-GWP alternatives, but some are mildly flammable.
D
R-number similarity alone is enough to determine whether one refrigerant can replace another.

Open ended

1 point

Explain how the Montreal Protocol and the AIM Act address different environmental concerns related to refrigerants. Include one distinction between the AIM Act's HFC phasedown and a blanket ban on servicing existing HFC equipment.

Choose one

1 point

A technician identifies R-134a as an HFC. Which statement best describes the environmental effects associated with this refrigerant family?

A
It depletes ozone but has no climate impact.
B
It does not deplete ozone, but it may have high global-warming potential.
C
It has no ozone or climate impact because it contains no chlorine.
D
Its ASHRAE safety group determines its global-warming potential.

Choose one

1 point

A service technician finds a refrigerant cylinder whose color seems inconsistent with the expected refrigerant. What is the safest way to verify its contents?

A
Compare the cylinder color with a chart for refrigerant colors.
B
Assume the cylinder contains the refrigerant most often used in that equipment.
C
Check the refrigerant label and product name, required markings, and safety data sheet.
D
Use the cylinder only if its paint matches the common industry color.

Choose one

1 point

A facility still operates an R-22 system. Given that new production and import of most HCFCs ended in 2020, which conclusion is consistent with the phaseout rules described here?

A
The system does not have to be removed immediately; refrigerant already available may be used for permitted servicing.
B
The system must be removed immediately because all HCFC use ended in 2020.
C
R-22 can be replaced with any refrigerant at a similar pressure.
D
R-22 is not subject to ozone controls because it is an HCFC rather than a CFC.

Choose one

1 point

During a repair, a technician must remove refrigerant from stationary equipment. What action best complies with the Section 608 requirements described here?

A
Vent the refrigerant if it is a substitute rather than an ozone-depleting substance.
B
Recover the refrigerant and follow the applicable service requirements.
C
Vent it only if the equipment is being repaired rather than disposed of.
D
Release it outdoors if the technician holds the required certification.

True or false

1 point

True or false: An A1 safety classification indicates lower toxicity and no flame propagation under the standard’s test conditions, but it does not mean the refrigerant is harmless.

A
True
B
False

Written response

1 point

What ASHRAE safety-group designation is assigned to R-32? Enter the designation.

Written response

1 point

The AIM Act directs EPA to reduce HFC production and consumption to $15\%$ of baseline levels by 2036. Treat the baseline as $100\%$ . By how many percentage points is the target below the baseline?

Written response

1 point

A policy trainee is asked to name the international agreement to protect the ozone layer, not the U.S. law that implements controls on ozone-depleting substances. What agreement should the trainee name?

2 Refrigerants and Environmental Regulations Online Quiz Questions

Related study packs and tools