ASE TEST PREP - A7 HEATING AND AIR
CONDITIONING - PRACTICE TEST #1
QUESTIONS AND ANSWERS WITH
SOLUTIONS 2024
Both Technicians A and B - ANSWER Technician A says AC system pressures will vary with changes in
outside temperature. Technician B says vent temperatures will vary depending on ambient temperature.
Who is correct?
A. Technician A only
B. Technician B only
C. Both Technicians A and B
D. Neither Technician A nor B
Both Technicians A and B - ANSWER A refrigerant identifier is connected to an AC system. The reading is
1% air and 99% R134A refrigerant. Technician A says the system may have been open in the past for
repairs, due to the small amount of air. Technician B says the system can safely be recovered into a
recovery machine. Who is correct?
A. Technician A only
B. Technician B only
C. Both Technicians A and B
D. Neither Technician A nor B
The system has been completely recovered - ANSWER Prior to a repair, a technician is recovering
refrigerant from an AC system. Several minutes after recovery has completed, the low side remains in
vacuum. Which of the following could this indicate?
A. The system has been completely recovered
B. There is too much oil in the system
C. There is still some refrigerant left in the system
D. There is excessive moisture in the system
, Both Technicians A and B - ANSWER Technician A says some HVAC actuator motors may require
calibration with a scan tool after replacement. Technician B says some actuators are automatically
calibrated in the self-diagnostic mode. Who is correct?
A. Technician A only
B. Technician B only
C. Both Technicians A and B
D. Neither Technician A nor B
Technician B only - ANSWER Technician A says that prior to performing a R134A retrofit, R12 does not
need to be recovered from the AC system. Technician B says all components of the AC system should be
checked, and verified fully operational before performing the retrofit. Who is correct?
A. Technician A only
B. Technician B only
C. Both Technicians A and B
D. Neither Technician A nor B
Remove refrigerant from the system - ANSWER Which of the following are you MOST likely to perform
during AC refrigerant recovery?
A. Remove most of the oil from the AC system
B. Test refrigerant for contaminants
C. Add refrigerant to the system
D. Remove refrigerant from the system
Both Technicians A and B - ANSWER An HVAC vent door is being replaced on a late model car. Technician
A says you may need to open up the HVAC duct box in order to perform this repair. Technician B says the
negative battery cable should be removed prior to repair. Who is correct?
A. Technician A only
B. Technician B only
C. Both Technicians A and B
D. Neither Technician A nor B
CONDITIONING - PRACTICE TEST #1
QUESTIONS AND ANSWERS WITH
SOLUTIONS 2024
Both Technicians A and B - ANSWER Technician A says AC system pressures will vary with changes in
outside temperature. Technician B says vent temperatures will vary depending on ambient temperature.
Who is correct?
A. Technician A only
B. Technician B only
C. Both Technicians A and B
D. Neither Technician A nor B
Both Technicians A and B - ANSWER A refrigerant identifier is connected to an AC system. The reading is
1% air and 99% R134A refrigerant. Technician A says the system may have been open in the past for
repairs, due to the small amount of air. Technician B says the system can safely be recovered into a
recovery machine. Who is correct?
A. Technician A only
B. Technician B only
C. Both Technicians A and B
D. Neither Technician A nor B
The system has been completely recovered - ANSWER Prior to a repair, a technician is recovering
refrigerant from an AC system. Several minutes after recovery has completed, the low side remains in
vacuum. Which of the following could this indicate?
A. The system has been completely recovered
B. There is too much oil in the system
C. There is still some refrigerant left in the system
D. There is excessive moisture in the system
, Both Technicians A and B - ANSWER Technician A says some HVAC actuator motors may require
calibration with a scan tool after replacement. Technician B says some actuators are automatically
calibrated in the self-diagnostic mode. Who is correct?
A. Technician A only
B. Technician B only
C. Both Technicians A and B
D. Neither Technician A nor B
Technician B only - ANSWER Technician A says that prior to performing a R134A retrofit, R12 does not
need to be recovered from the AC system. Technician B says all components of the AC system should be
checked, and verified fully operational before performing the retrofit. Who is correct?
A. Technician A only
B. Technician B only
C. Both Technicians A and B
D. Neither Technician A nor B
Remove refrigerant from the system - ANSWER Which of the following are you MOST likely to perform
during AC refrigerant recovery?
A. Remove most of the oil from the AC system
B. Test refrigerant for contaminants
C. Add refrigerant to the system
D. Remove refrigerant from the system
Both Technicians A and B - ANSWER An HVAC vent door is being replaced on a late model car. Technician
A says you may need to open up the HVAC duct box in order to perform this repair. Technician B says the
negative battery cable should be removed prior to repair. Who is correct?
A. Technician A only
B. Technician B only
C. Both Technicians A and B
D. Neither Technician A nor B
