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UPDATED EPA 608 Exam (2023/2024) With Correct Answers.
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UPDATED EPA 608 Exam () With Correct Answers.
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UPDATED EPA 608 Exam (2023/2024)With Correct Answers.
the .state .of .the .refrigerant .entering .the .metering .device .is? .- .(correct .answer) .-
A .subcooled .high .pressure .liquid.
what .type .of .refrigerant .is .used .in .VERY .high-pressure .appliances? .- .(correct .answer) .-R-503
what .type .of .refrigerant .is .used .in .MEDIUM .pressure .appliances? .- .(correct .answer) .-R-500
what .type .of .refrigerant .is .used .in .HIGH .pressure .appliances? .- .(correct .answer) .-R-410A .and .R-22
what .device .is .located .at .the .END .of .the .liquid .line? .- .(correct .answer) .-The .expansion .device.
what .type .of .refrigerants .are .the .LEAST .harmful .to .the .ozone .layer? .- .(correct .answer) .-
HFC .refrigerants.
How .much .money .does .the .EPA .offer .to .individuals .who .report .information .about .others .who .vent .
refrigerants .into .the .atmosphere? .- .(correct .answer) .-$10,000.
which .class .of .refrigerants .does .R-22 .fall .into? .- .(correct .answer) .-The .HCFC .class. .
(hydrochloroflurocarbons)
which .gas .should .be .used .when .checking .for .leaks .in .various .systems? .- .(correct .answer) .-Nitrogen.
which .term .describes .the .process .of .changing .a .refrigerant .from .a .liquid .to .a .gas .using .HEAT? .- .
(correct .answer) .-Latent .heat.
refrigerants .in .the .SUCTION .line .are .in .what .phase .and .state? .- .(correct .answer) .-Cold .vapor.
how .many .miles .above .the .Earth's .surface .does .the .ozone .layer .in .the .stratosphere .extend? .- .
(correct .answer) .-31 .miles.
what .year .was .the .Montreal .Protocol .put .in .place? .- .(correct .answer) .-1989.
refrigerant .recovery .equipment .should .be .checked .for .(blank) .on .a .daily .basis? .- .(correct .answer) .-
Refrigerant .leaks .and .oil .levels.
should .recovery .machines .be .used .on .equipment .that .contains .hydrogen? .- .(correct .answer) .-NO.
which .purity .test .is .used .to .determine .the .type .of .refrigerant? .- .(correct .answer) .-ARI .700.
, what .type .of .unit .only .requires .ONE .service .connection? .- .(correct .answer) .-self-
contained .recovery .units.
air .will .cause .(blank) .discharge .pressures .in .a .refrigeration .system. .- .(correct .answer) .-Higher.
a .strong .odor .is .around .during .the .recovery .process. .what .is .most .likely .the .cause .of .this? .- .(correct
.answer) .-A .compressor .burnout.
what .is .the .best .way .(position) .to .transport .refrigeration .cylinders? .- .(correct .answer) .-Upright.
you .can .only .accurately .read .refrigerant .pressure .with .a .stable .(blank)? .- .(correct .answer) .-
Temperature.
an .explosion .can .occur .if .(blank) .is .vented .in .an .enclosed .environment? .- .(correct .answer) .-
Hydrogen.
can .refrigerants .be .mixed .in .a .recovery .tank? .- .(correct .answer) .-NO.
what .is .the .state .of .refrigerant .leaving .the .liquid .receiver? .- .(correct .answer) .-High .pressure .liquid.
what .is .the .minimum .microns .a .vacuum .pump .must .pull .when .evacuating .a .system? .- .
(correct .answer) .-500 .microns.
what .is .usually .contained .in .refrigerants .made .before .1950? .- .(correct .answer) .-SO2. .(sulfur .dioxide)
what .prevents .transient .slugs .of .liquid .from .getting .into .the .compressor? .- .(correct .answer) .-
Accumulator.
what .is .the .filter .drier .responsible .for .removing? .- .(correct .answer) .-Moisture .and .Particulates.
can .the .compressor .compress .liquid? .- .(correct .answer) .-NO.
what .is .the .best .leak-checking .procedure .for .a .pressure .decay .test? .- .(correct .answer) .-Nitrogen.
when .the .annual .leak .rate .exceeds .
(blank), .all .comfort .cooling .systems .with .more .than .50lb .of .refrigerant .must .be .repaired. .- .
(correct .answer) .-15%
True .or .False.
the .receiver .is .not .part .of .the .low .side .of .a .system .located .in .a .refrigeration .system? .- .
(correct .answer) .-True.
how .often .should .leaks .be .checked .in .the .recovery .or .recycling .unit .for .commercial .refrigeration .eq
uipment? .- .(correct .answer) .-3 .months.
how .can .you .check .if .there .is .excess .air ./ .non-condensables .in .the .tank? .- .(correct .answer) .-
Checking .the .pressure .inside .the .recovery .tank. .Reference .the .pressure ./ .temperature .chart.
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