EPA 608 (TYPE II) Exam Questions | 2026/2027 | Answers
Correct | With Complete Solutions
A compressor heater is used to? Correct Answers Reduce the
amount of refrigerant in the lubricating oil.
A deep vacuum is usually measured in? Correct Answers
Microns.
A reciprocating compressor should not be energized when?
Correct Answers The discharge service valve is closed.
A recovery machine that uses a hermetic compressor will
overheat when drawing a deep vacuum because? Correct
Answers The motor needs a flow of refrigerant through the
compressor to provide motor cooling.
A routine maintenance task which must be performed on
refrigerant recycling machines is to? Correct Answers Change
filter & compressor oil (if any).
A system can be evacuated to only atmospheric pressure when?
Correct Answers Leaks in the appliance make evacuation to the
prescribed level unattainable.
After installation of a field-piped R-410A split heat pulp, the
unit should first be? Correct Answers Pressurized with nitrogen
then leak checked.
After reaching the required vacuum on a system you must?
Correct Answers Wait to see if the pressure rises, indicating that
, there is still refrigerant in liquid form or refrigerant trapped in
the oil.
After refrigerant liquid has been recovered from a system, any
remaining vapor is? Correct Answers Condensed by the
recovery system.
An oil sample should be taken when _________. Correct
Answers The compressor has burned-out.
Before using a recovery unit to remove a charge, what steps
should be taken? Correct Answers 1.) Check service valve
positions.
2.) Check the oil level in the recovery unit.
3.) Evacuate recovery unit & recovery tank.
Before using a recovery unit to remove a charge, what steps
should be taken? Correct Answers A.) Check service valve
positions
B.) Check the oil level in the recovery tank.
C.) Evacuate recovery unit & recovery tank.
Dry nitrogen should be used to break the first vacuum when
dehydrating by the double evacuation method. However, it?
Correct Answers Can be dangerous if not used with a pressure
regulator.
Correct | With Complete Solutions
A compressor heater is used to? Correct Answers Reduce the
amount of refrigerant in the lubricating oil.
A deep vacuum is usually measured in? Correct Answers
Microns.
A reciprocating compressor should not be energized when?
Correct Answers The discharge service valve is closed.
A recovery machine that uses a hermetic compressor will
overheat when drawing a deep vacuum because? Correct
Answers The motor needs a flow of refrigerant through the
compressor to provide motor cooling.
A routine maintenance task which must be performed on
refrigerant recycling machines is to? Correct Answers Change
filter & compressor oil (if any).
A system can be evacuated to only atmospheric pressure when?
Correct Answers Leaks in the appliance make evacuation to the
prescribed level unattainable.
After installation of a field-piped R-410A split heat pulp, the
unit should first be? Correct Answers Pressurized with nitrogen
then leak checked.
After reaching the required vacuum on a system you must?
Correct Answers Wait to see if the pressure rises, indicating that
, there is still refrigerant in liquid form or refrigerant trapped in
the oil.
After refrigerant liquid has been recovered from a system, any
remaining vapor is? Correct Answers Condensed by the
recovery system.
An oil sample should be taken when _________. Correct
Answers The compressor has burned-out.
Before using a recovery unit to remove a charge, what steps
should be taken? Correct Answers 1.) Check service valve
positions.
2.) Check the oil level in the recovery unit.
3.) Evacuate recovery unit & recovery tank.
Before using a recovery unit to remove a charge, what steps
should be taken? Correct Answers A.) Check service valve
positions
B.) Check the oil level in the recovery tank.
C.) Evacuate recovery unit & recovery tank.
Dry nitrogen should be used to break the first vacuum when
dehydrating by the double evacuation method. However, it?
Correct Answers Can be dangerous if not used with a pressure
regulator.
