AHR-110 Exam 3 Study Guide WITH
ACCURATE QUESTIONS AND ANSWERS
(VERIFIED ANSWERS) | LATEST
(2026/2027) UPDATED VERSION |
100% GUARANTEED PASS
{JUST RELEASED}
1. The most common type of system leaks are __________ leaks. - ANSWER ✓
Standing
2. A(n) ____________ leak detector requires a lubricant-specific dye be
injected into a charged system to find the leak. - ANSWER ✓ Ultraviolet
3. Removing air and/or other noncondensable gases from a system using a
vacuum pump is called ___________. - ANSWER ✓ Degassing
4. The process of removing both noncondensable gases and water vapor is called
________. - ANSWER ✓ Evacuation
, 5. Sludge and other solids can be removed from a system by using
__________. - ANSWER ✓ liquid- and suction-line filter/driers
6. Atmospheric pressure, 0 psig, is the equivalent of about __________
microns. - ANSWER ✓ 760,000
7. (T/F): The process of a solid changing to a vapor without passing through the
liquid state is called dehydration. - ANSWER ✓ False
8. (T/F): A system with Schrader valve gauge ports will take longer to evacuate
than a system with service valves. - ANSWER ✓ True
9. A ¼ inch service hose will only allow a vacuum pump to pull at _____ CFM,
regardless of the pump's CFM rating. - ANSWER ✓ 0.8
10. The mechanical strain of motion, rotation, and refrigerant flow are all
associated with _________ leaks. - ANSWER ✓ Vibration-Dependent
11. The low-pressure side of the system must not be pressurized to more
than_________ when testing for leaks. - ANSWER ✓ The low-side design
pressure
, 12. Standing, pressure-dependent, temperature-dependent, vibration-dependent,
combination-dependent, and micro are all types of - ANSWER ✓ Leak
Methods
13. The _____________ is both the greatest asset and the greatest liability of
an electronic leak detector. - ANSWER ✓ Sensitivity
14. A deep vacuum can most accurately be measured in - ANSWER ✓ Microns
15. Which of the tools used during the evacuation process can be wireless and use
Bluetooth technology? - ANSWER ✓ Micron Gauge
16. A ___________ can remove any type of foreign matter that enters a
refrigeration system. - ANSWER ✓ Filter Drier
17. Moisture, acid buildup, and copper plating can all be caused by which of the
following? - ANSWER ✓ Air in the System
18. The only two substances that should be circulating in a refrigeration system
are - ANSWER ✓ Refrigerant and Oil
ACCURATE QUESTIONS AND ANSWERS
(VERIFIED ANSWERS) | LATEST
(2026/2027) UPDATED VERSION |
100% GUARANTEED PASS
{JUST RELEASED}
1. The most common type of system leaks are __________ leaks. - ANSWER ✓
Standing
2. A(n) ____________ leak detector requires a lubricant-specific dye be
injected into a charged system to find the leak. - ANSWER ✓ Ultraviolet
3. Removing air and/or other noncondensable gases from a system using a
vacuum pump is called ___________. - ANSWER ✓ Degassing
4. The process of removing both noncondensable gases and water vapor is called
________. - ANSWER ✓ Evacuation
, 5. Sludge and other solids can be removed from a system by using
__________. - ANSWER ✓ liquid- and suction-line filter/driers
6. Atmospheric pressure, 0 psig, is the equivalent of about __________
microns. - ANSWER ✓ 760,000
7. (T/F): The process of a solid changing to a vapor without passing through the
liquid state is called dehydration. - ANSWER ✓ False
8. (T/F): A system with Schrader valve gauge ports will take longer to evacuate
than a system with service valves. - ANSWER ✓ True
9. A ¼ inch service hose will only allow a vacuum pump to pull at _____ CFM,
regardless of the pump's CFM rating. - ANSWER ✓ 0.8
10. The mechanical strain of motion, rotation, and refrigerant flow are all
associated with _________ leaks. - ANSWER ✓ Vibration-Dependent
11. The low-pressure side of the system must not be pressurized to more
than_________ when testing for leaks. - ANSWER ✓ The low-side design
pressure
, 12. Standing, pressure-dependent, temperature-dependent, vibration-dependent,
combination-dependent, and micro are all types of - ANSWER ✓ Leak
Methods
13. The _____________ is both the greatest asset and the greatest liability of
an electronic leak detector. - ANSWER ✓ Sensitivity
14. A deep vacuum can most accurately be measured in - ANSWER ✓ Microns
15. Which of the tools used during the evacuation process can be wireless and use
Bluetooth technology? - ANSWER ✓ Micron Gauge
16. A ___________ can remove any type of foreign matter that enters a
refrigeration system. - ANSWER ✓ Filter Drier
17. Moisture, acid buildup, and copper plating can all be caused by which of the
following? - ANSWER ✓ Air in the System
18. The only two substances that should be circulating in a refrigeration system
are - ANSWER ✓ Refrigerant and Oil
