Automotive Refrigerant Recovery and
Recycling Certification Exam Practice
Questions And Correct Answers
(Verified Answers) Plus Rationales 2027
Q&A | Instant Download Pdf
1. What is the primary purpose of recovering refrigerant from an
automotive air-conditioning system before opening the system for
service?
A. To increase compressor speed
B. To prevent refrigerant from being released into the atmosphere
C. To increase system pressure
D. To improve engine cooling
Answer: B. To prevent refrigerant from being released into the
atmosphere
,Refrigerant recovery removes the refrigerant from the vehicle and stores it
in approved equipment, preventing unnecessary atmospheric release and
allowing the refrigerant to be properly handled or recycled.
2. Which component is primarily responsible for removing heat from the
vehicle passenger compartment?
A. Condenser
B. Receiver-drier
C. Evaporator
D. Compressor
Answer: C. Evaporator
The evaporator absorbs heat from air passing through or around it as
refrigerant changes state from a low-pressure liquid-vapor mixture into
vapor.
3. What is the main function of the compressor in an automotive air-
conditioning system?
A. To remove moisture from refrigerant
B. To circulate refrigerant and raise its pressure
C. To cool the condenser
D. To regulate cabin airflow
Answer: B. To circulate refrigerant and raise its pressure
,The compressor draws in low-pressure refrigerant vapor from the
evaporator and compresses it into a high-pressure vapor that can reject
heat through the condenser.
4. Which component removes heat from high-pressure refrigerant vapor
and causes it to condense into a liquid?
A. Evaporator
B. Accumulator
C. Condenser
D. Expansion valve
Answer: C. Condenser
The condenser rejects heat to the surrounding air and changes high-
pressure refrigerant vapor into a high-pressure liquid.
5. What is the principal purpose of a receiver-drier?
A. To increase compressor displacement
B. To store liquid refrigerant and remove moisture
C. To increase evaporator airflow
D. To reduce engine temperature
Answer: B. To store liquid refrigerant and remove moisture
, A receiver-drier provides liquid refrigerant storage on systems using a
thermal expansion valve and contains desiccant that removes moisture
from the refrigerant circuit.
6. Which component commonly performs the refrigerant storage and
moisture-removal function on systems using a fixed orifice tube?
A. Accumulator
B. Condenser
C. Compressor
D. Expansion valve
Answer: A. Accumulator
An accumulator is normally located on the low-pressure side and helps
prevent liquid refrigerant from entering the compressor while also storing
excess refrigerant and containing desiccant.
7. What should a technician do before connecting recovery equipment to
an automotive A/C system?
A. Add refrigerant
B. Identify the refrigerant in the system
C. Open the system to the atmosphere
D. Remove the compressor
Answer: B. Identify the refrigerant in the system
Recycling Certification Exam Practice
Questions And Correct Answers
(Verified Answers) Plus Rationales 2027
Q&A | Instant Download Pdf
1. What is the primary purpose of recovering refrigerant from an
automotive air-conditioning system before opening the system for
service?
A. To increase compressor speed
B. To prevent refrigerant from being released into the atmosphere
C. To increase system pressure
D. To improve engine cooling
Answer: B. To prevent refrigerant from being released into the
atmosphere
,Refrigerant recovery removes the refrigerant from the vehicle and stores it
in approved equipment, preventing unnecessary atmospheric release and
allowing the refrigerant to be properly handled or recycled.
2. Which component is primarily responsible for removing heat from the
vehicle passenger compartment?
A. Condenser
B. Receiver-drier
C. Evaporator
D. Compressor
Answer: C. Evaporator
The evaporator absorbs heat from air passing through or around it as
refrigerant changes state from a low-pressure liquid-vapor mixture into
vapor.
3. What is the main function of the compressor in an automotive air-
conditioning system?
A. To remove moisture from refrigerant
B. To circulate refrigerant and raise its pressure
C. To cool the condenser
D. To regulate cabin airflow
Answer: B. To circulate refrigerant and raise its pressure
,The compressor draws in low-pressure refrigerant vapor from the
evaporator and compresses it into a high-pressure vapor that can reject
heat through the condenser.
4. Which component removes heat from high-pressure refrigerant vapor
and causes it to condense into a liquid?
A. Evaporator
B. Accumulator
C. Condenser
D. Expansion valve
Answer: C. Condenser
The condenser rejects heat to the surrounding air and changes high-
pressure refrigerant vapor into a high-pressure liquid.
5. What is the principal purpose of a receiver-drier?
A. To increase compressor displacement
B. To store liquid refrigerant and remove moisture
C. To increase evaporator airflow
D. To reduce engine temperature
Answer: B. To store liquid refrigerant and remove moisture
, A receiver-drier provides liquid refrigerant storage on systems using a
thermal expansion valve and contains desiccant that removes moisture
from the refrigerant circuit.
6. Which component commonly performs the refrigerant storage and
moisture-removal function on systems using a fixed orifice tube?
A. Accumulator
B. Condenser
C. Compressor
D. Expansion valve
Answer: A. Accumulator
An accumulator is normally located on the low-pressure side and helps
prevent liquid refrigerant from entering the compressor while also storing
excess refrigerant and containing desiccant.
7. What should a technician do before connecting recovery equipment to
an automotive A/C system?
A. Add refrigerant
B. Identify the refrigerant in the system
C. Open the system to the atmosphere
D. Remove the compressor
Answer: B. Identify the refrigerant in the system
