ENGINEERING EXAM QUESTIONS AND
ANSWERS
What is being done in the U.S. to stop damage to the stratospheric ozone layer? -
Answer-Eliminating the use of CFCs and HCFCs refrigerants
How much can a technician be fined for venting a non-exempt refrigerant from a
system? - Answer-$44,539 per day per violation
State and local governments __________________. - Answer-can make laws that are
stricter requirements than the federal regulations
The ___________ identifies alternative refrigerants for use program. - Answer-Snap
Program
The Montreal Protocol is ________________________. - Answer-An international
treaty that addresses ozone-depleting substances and their alternatives
The production and import of new R-22 in the U.S. to service existing systems is
banned beginning in ________. - Answer-2020
After a refrigerant is phased-out, supplies of that refrigerant for equipment servicing can
only come from __________________. - Answer-recovered and reclaimed gas
Technicians who violate Clean Air Act provisions __________________. - Answer-can
lose their certification
Which is a violation of EPA or Clean Air Act regulations? - Answer-Failing to evacuate
refrigerant in a leaking system to at least 0 psig
Reclaimed refrigerant must be tested to meet __________________ before it can be
resold. - Answer-AHRI 700
If technicians lose their certification card, they must_________________. - Answer-
request a replacement from the company that provided the certification
Distributors must verify __________________ before they can sell refrigerant. -
Answer-that the purchaser employs at least one Section 608 certified technician
What does NOT require Section 608 certification? - Answer-Rewiring a condenser fan
, What refrigerant servicing does NOT require Section 608 certification? - Answer-carbon
dioxide refrigerant
Which of the following is a lawful use of HCFC-22? - Answer-Servicing existing R-22
systems
When servicing an R-22 system you CANNOT _______. - Answer-top off the unit with
R-407C
How should disposable cylinders be discarded? - Answer-Recover all remaining
refrigerant, render the cylinders useless, and recycle the metal.
Before disposing of any appliance containing refrigerant __________________. -
Answer-recover the refrigerant
The EPA's "safe disposal requirements" make the __________________ responsible
for ensuring that all refrigerant has been removed from household refrigerators before
they are disposed. - Answer-final person in the disposal chain
All CFC, HCFC, and HFC refrigerant recovery devices must _________________. -
Answer-meet EPA standards
Which appliances are NOT covered by EPA regulations? - Answer-Desiccant
dehumidifiers
A "self-contained" recovery device ________________. - Answer-removes refrigerant
with the assistance of components in the appliance
EPA regulations require appliances to have ___________. - Answer-a service aperture
or process stub
A ________________ recovery device uses the compressor in the appliance and/or the
pressure of the refrigerant in the appliance. - Answer-system-dependent
When disposing of an appliance with 5-50 pounds of refrigerant, you must
record_______________. - Answer-the type of refrigerant recovered
What happens when EPA regulations change after a technician is certified? - Answer-
The technician has a responsibility to keep up with changes in EPA regulations.
What does a Section 608 certification allow a technician to do? - Answer-Purchase or
handle controlled refrigerants
What action violates the EPA's prohibition on venting? - Answer-Opening the system
without properly recovering the refrigerant first