EPA 608 TYPE 2 TEST ACTUAL EXAM 210 QUESTIONS AND CORRECT DETAILED ANSWERS WITH RATIONALES (VERIFIED ANSWERS) |ALREADY GRADED A+<\/p>\n\n\n\n
EPA 608 TYPE 2 TEST 2023-2024 ACTUAL EXAM 210 a) prevent refrigerant vaporization You are going to service an older residential split system air conditioner. d) 15 inches of Hg vacuum – ANSWER- b) 4 inches of Hg vacuum
QUESTIONS AND CORRECT DETAILED ANSWERS
WITH RATIONALES (VERIFIED ANSWERS)
|ALREADY GRADED A+
When servicing a 60-ton packaged rooftop unit, the easiest way to check
the type of refrigerant it uses is to: .
a) use your service gauge set and a refrigerant card
b) ask the owner
c) look at the unit nameplate
d) determine the condenser size – ANSWER- c) look at the unit
nameplate
R-410A requires certified recovery and recycling machines rated for at
least: <\/em><\/strong>.
a) 240 psig
b) 300 psig
c) 400 psig
d) 500 psig – ANSWER- c) 400 psig
A compressor heater is used to: ___<\/em><\/strong><\/em>.<\/p>\n\n\n\n
b) remove entrained water
c) prevent acid pitting
d) reduce the amount of refrigerant in the lubricating oil – ANSWER- d)
reduce the amount of refrigerant in the lubricating oil
R-410A requires a high-pressure manifold gauge and hose set. They
must have a: _<\/em><\/strong>.
a) 2000 psig burst pressure and 400 psig working pressure
b) 2000 psig burst pressure and 800 psig working pressure
c) 4000 psig burst pressure and 400 psig working pressure
d) 4000 psig burst pressure and 800 psig working pressure – ANSWERd) 4000 psig burst pressure and 800 psig working pressure
In a refrigeration system, the component directly following the
evaporator is the: _<\/em><\/strong>.
a) receiver
b) metering device
c) accumulator
d) condenser – ANSWER- c) accumulator<\/p>\n\n\n\n
You would expect to find the system charged with which refrigerant?
a) R-11
b) R-12
c) R-22
d) R-502 – ANSWER- c) R-22
When charging an R-12 refrigeration system that uses a water-cooled
condenser, you must first charge with vapor to a pressure of at least
, before switching to liquid charging. a) 0 psig b) 20 psig c) 35 psig d) 100 psig – ANSWER- c) 35 psig When using recovery and recycling equipment manufactured BEFORE November 15, 1993 technicians must evacuate a unit that has a normal charge of 10 pounds of CFC-500 to _<\/em><\/strong><\/em><\/strong> before disposing of the
system.
a) 0 psig
b) 4 inches of Hg vacuum
c) 10 inches of Hg vacuum<\/p>\n\n\n\n
A deep vacuum is usually measured in: .
a) psig
b) psia
c) inches of Hg
d) microns – ANSWER- d) microns
To change the compressor on a system containing R-410A, you must
isolate the compressor then: __<\/strong><\/em><\/strong><\/em>.
a) simply remove the compressor
b) evacuate the isolated section of the system to atmospheric pressure
and hold. If system pressure does not rise, remove the compressor
c) evacuate the isolated section of the system to 10 inches of vacuum
and hold. If system pressure does not rise, remove the compressor.
d) evacuate the isolated section of the system to 15 inches of vacuum
and hold. If system pressure does not rise, remove the compressor. –
ANSWER- b) evacuate the isolated section of the system to atmospheric
pressure and hold. If system pressure does not rise, remove the
compressor
Every air conditioning or refrigerating system should be protected by a:
_<\/em><\/strong>.
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