EPA 608 Practice Test #1
____ containing compounds, which might be contained in ordinary halon fire extinguishers,
additionally smash the ozone - ANS-Bromine
A device that gets rid of Aaron different noncondensibles from the pinnacle of the condenser of
a centrifugal refrigeration machine flip operation is called a? - ANS-Purge unit
A essential motive why a refrigerant tank must in no way be heated with an open flame is due to
the fact it might? - ANS-Explode
A second category of refrigerant is presently available which is hydrochlorofluorocarbons
(HCFCs). Although they include chlorine, that's negative to the ozone layer, in addition they
comprise this which makes them chemically less stable after they enter the atmosphere. -
ANS-Hydrogen
After finishing the transfer of liquid refrigerant between the healing unit and the refrigeration
system, you need to be cautious to avoid trapping liquid refrigerant between the service valves
due to the fact? - ANS-There isn't any stress comfort valve on the standard hose and the liquid
refrigerant trapped in the hose ought to building up vast pressure and rupture the hose
After recuperation of a device, if the strain rises above ambient stress then what is most likely
taking place? - ANS-Trapped refrigerant might be boiling off
After what yr individual servicing and eliminating air-conditioning and refrigeration system are
prohibited from knowingly venting refrigerant into the atmosphere? - ANS-July 1, 1992
All gadgets used for refrigerant recovery have to meet what standards? - ANS-EPA
Approved refillable tanks have to in no way be stuffed to more than what percentage of their
total ability? - ANS-eighty%
Approved refrigerant recuperation cylinders may be identified via? - ANS-Yellow tops and grey
our bodies
Before you dispose of any appliance containing what refrigerant, you should recover the
refrigerant - ANS-CFC, HFC, HCFC
Capturing and in the end eliminating the usage of chlorofluorocarbons is being executed inside
the United States to forestall harm to what layer of the ozone? - ANS-Stratospheric
, CFCs are able to reach the stratosphere due to the fact? - ANS-They are chemically very solid
CFCs are chemically very solid because they include no? - ANS-Hydrogen
CFCs are adverse to what layer of the ozone layer? - ANS-Stratospheric
CFCs can now not be synthetic or imported into america after what year? - ANS-December 31,
1995
CH2FCF3 refrigerant is a? - ANS-HFC
Chemically, oxygen is O2 & ozone is? - ANS-O3
Chlorofluorocarbons (CFCs) encompass? - ANS-Chlorine, fluorine, carbon
Disposable cylinders are manufactured to specs established by means of? - ANS-DOT
Every refrigerant cylinder is prepared with what tool that will routinely vent stress from the
cylinder earlier than it reaches the rupture factor? - ANS-Safety (strain) alleviation valve
HFC Fluorocarbon refrigerants motive no harm to the stratospheric ozone they've? - ANS-Zero
ODP
Hydrochlorofluorocarbon (HCFC) refrigerant comprise what? - ANS-Hydrogen, chlorine, fluorine,
& carbon
Hydrofluorocarbon (HFC) refrigerant incorporate? - ANS-Hydrogen, fluorine, & carbon
Hydroscopic method affinity for? - ANS-Water
Import of CFCs might be banned after December 31, what 12 months? - ANS-1995
In cases in which the refrigerant can't be reclaimed due to contamination with different
refrigerants, what have to be done to the refrigerant? - ANS-Must be destroyed by means of
incineration at an authorised facility
Mixtures of what elements that are used as conserving charges or as leak take a look at gases
are not problem to the July 1, 1992 prohibition? - ANS-Nitrogen and R - 22
Of the three common forms of refrigerants this one has the highest ozone depletion ability
(ODP) - ANS-CFCs
Ozone at floor degree is? - ANS-Hey dangerous pollutants
____ containing compounds, which might be contained in ordinary halon fire extinguishers,
additionally smash the ozone - ANS-Bromine
A device that gets rid of Aaron different noncondensibles from the pinnacle of the condenser of
a centrifugal refrigeration machine flip operation is called a? - ANS-Purge unit
A essential motive why a refrigerant tank must in no way be heated with an open flame is due to
the fact it might? - ANS-Explode
A second category of refrigerant is presently available which is hydrochlorofluorocarbons
(HCFCs). Although they include chlorine, that's negative to the ozone layer, in addition they
comprise this which makes them chemically less stable after they enter the atmosphere. -
ANS-Hydrogen
After finishing the transfer of liquid refrigerant between the healing unit and the refrigeration
system, you need to be cautious to avoid trapping liquid refrigerant between the service valves
due to the fact? - ANS-There isn't any stress comfort valve on the standard hose and the liquid
refrigerant trapped in the hose ought to building up vast pressure and rupture the hose
After recuperation of a device, if the strain rises above ambient stress then what is most likely
taking place? - ANS-Trapped refrigerant might be boiling off
After what yr individual servicing and eliminating air-conditioning and refrigeration system are
prohibited from knowingly venting refrigerant into the atmosphere? - ANS-July 1, 1992
All gadgets used for refrigerant recovery have to meet what standards? - ANS-EPA
Approved refillable tanks have to in no way be stuffed to more than what percentage of their
total ability? - ANS-eighty%
Approved refrigerant recuperation cylinders may be identified via? - ANS-Yellow tops and grey
our bodies
Before you dispose of any appliance containing what refrigerant, you should recover the
refrigerant - ANS-CFC, HFC, HCFC
Capturing and in the end eliminating the usage of chlorofluorocarbons is being executed inside
the United States to forestall harm to what layer of the ozone? - ANS-Stratospheric
, CFCs are able to reach the stratosphere due to the fact? - ANS-They are chemically very solid
CFCs are chemically very solid because they include no? - ANS-Hydrogen
CFCs are adverse to what layer of the ozone layer? - ANS-Stratospheric
CFCs can now not be synthetic or imported into america after what year? - ANS-December 31,
1995
CH2FCF3 refrigerant is a? - ANS-HFC
Chemically, oxygen is O2 & ozone is? - ANS-O3
Chlorofluorocarbons (CFCs) encompass? - ANS-Chlorine, fluorine, carbon
Disposable cylinders are manufactured to specs established by means of? - ANS-DOT
Every refrigerant cylinder is prepared with what tool that will routinely vent stress from the
cylinder earlier than it reaches the rupture factor? - ANS-Safety (strain) alleviation valve
HFC Fluorocarbon refrigerants motive no harm to the stratospheric ozone they've? - ANS-Zero
ODP
Hydrochlorofluorocarbon (HCFC) refrigerant comprise what? - ANS-Hydrogen, chlorine, fluorine,
& carbon
Hydrofluorocarbon (HFC) refrigerant incorporate? - ANS-Hydrogen, fluorine, & carbon
Hydroscopic method affinity for? - ANS-Water
Import of CFCs might be banned after December 31, what 12 months? - ANS-1995
In cases in which the refrigerant can't be reclaimed due to contamination with different
refrigerants, what have to be done to the refrigerant? - ANS-Must be destroyed by means of
incineration at an authorised facility
Mixtures of what elements that are used as conserving charges or as leak take a look at gases
are not problem to the July 1, 1992 prohibition? - ANS-Nitrogen and R - 22
Of the three common forms of refrigerants this one has the highest ozone depletion ability
(ODP) - ANS-CFCs
Ozone at floor degree is? - ANS-Hey dangerous pollutants
