all of the above - AND Refrigeration technicians who violate the clean air act can:
A. lose their epa certification
B. be fined.
C. be required to appear in federal court
D. all of the above
november 1995 - ANS It has been illegal to vent substitutes for CFC and HCFC refrigerants
since:
R22 - ANS which refrigerant has the lowest odp?
R22, R11, R12, R113
recover - ANS to remove refrigerant in any condition from a system and store it in an external
container without necessarily testing or processing it in any way is to ________.
no - ANS Does the EPA recognize any refrigerant "drop-in" replacements?
slow - AND Do low ambient temperatures slow or speed up the process of refrigerant recovery?
hcfc - AND Chemical composition of R-124
temperature glide - ANS The term used to describe the fact that a refrigerant blend has a range
of boiling or condensing points at a constant pressure is ________ _________.
CFCs in air samples from the atmosphere - ANS What is the best proof that there are CFCs in
the atmosphere?
Is it the measurement of:
A. CFCs in smog
B. other man-made compounds in air samples from the stratosphere?
C. CFCs in air samples from the atmosphere
all contribute - ANS According to the EPA, which of the following do NOT contribute to global
warming? CFC, HCFC, HFC?
can cause asphyxia - ANS Even though R-22 is considered non-toxic, it:
A. is lighter than air
B. can cause asphyxia
C. is a class 1 refrigerant
D. can be detected by its color
, 1995 - ANS CFCs will no longer be manufactured or imported into the U.S. after what year?
water vapor - ANS A system is dehydrated to remove water and _____ ______.
R500 - ANS Which of the following refrigerants contains a CFC: R500, R410A, R134A, OR
R123?
5 - ANS The EPA's definition of a, type 1, small appliance, is a device that contains a factory
charge of _____ lbs or less and is hermetically sealed at the factory.
small appliances - ANS The EPA regulation requires any person who opens an appliance for
maintenance to have at least one self-contained recovery machine available. The only
exception: _____ _____
Phosgene gas - ANS At high temperatures, R-12 and R-22 can decompose to form: ______
_______.
respirator - ANS The EPA recommends, for safety, goggles when working with compressed gas,
and _________ when working with refrigerant.
critical - ANS When it comes to schrader valves, inspecting, replacing damaged valves, and
capping service ports is considered ______.
electronic ultrasonic - ANS The EPA believes that the most effective leak detection method is:
__________ or ___________.
hfc - ANS The chemical composition of R-134A is:
R410A - ANS An HFC refrigerant considered non-typical because it is a near azeotropic, can
charge either as a liquid or a vapor, and has a 400 series number, even though it behaves like a
500 series refrigerant is:
cfc - ANS Chemical composition of R-11
cfc - ANS Chemical composition of R-12
cfc - ANS Chemical composition of R-500
hcfc - ANS Chemical composition of R-22
hcfc - ANS Chemical composition of R-123
november 14 1994 - ANS Since this date, a person may not service, maintain, or dispose of
appliances designed to contain refrigerants without being appropriately certified.
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