ASE T7 TEST |ACTUAL QUESTIONS AND VERIFIED
ANSWERS|BRAND NEW 2026-2027
UPDATE|GRADED A+
Question 1
Refrigerant oil can be injected into an A/C system by:
A. using an RRR machine
B. using a "caulking gun" injection tool
C. pouring it in to an A/C system component before installation
D. all of the above are correct
CORRECT ANSWER
The correct answer is D, all of the answers are correct. A is correct because many RRR
machines have a function that allows oil to be injected into an evacuated A/C system. B is
correct because hand tools are available for manually injecting refrigerant oil into an A/C
system. C is correct because whenever an A/C system component is replaced, a
manufacturer-specified amount of refrigerant oil should be poured in to the component
before installing it.
Question 2
A smeary film on the windshield is an indication of:
A. an evaporator core leak
B. a water control valve leak
C. a heater core leak
D. a restricted evaporator drain
CORRECT ANSWER
1
,The correct answer is C. C is correct because a leaking heater core often emits a residue of
coolant. This residue doesn't readily evaporate from the windshield, and leaves a sweet-
smelling mist. A is incorrect because an A/C evaporator core leak typically won't leak enough
oil to have it appear on the vehicle windshield. B is incorrect because water control valves
are typically located outside the HVAC air box and appear as leaks on the vehicle floor. D is
incorrect because a restricted evaporator drain will put moisture on the windshield, but
won't smear like a glycol leak.
Question 3
What is the purpose of the high-pressure cutoff switch?
A. interrupts compressor operation in the event of high system pressures
B. interrupts compressor operation in the event of low accumulator pressures
C. interrupts compressor operation and increases cooling fan speed
D. vents excessive refrigerant pressure
CORRECT ANSWER
The correct answer is A. A is correct because the purpose of the high-pressure cutoff switch
is to shut down the compressor in the event of high system pressures. This is to protect the
system, and also to prevent the venting of refrigerant. B is incorrect because the clutch
cycling switch is responsible for interrupting compressor operation in the event of low
accumulator pressures. C is incorrect because the high-pressure cutoff switch doesn't
increase cooling fan speed. D is incorrect because the high-pressure cutoff switch is not
responsible for venting excessive refrigerant pressure.
Question 4
Technician A says that that a DOT CFR Title 49 container can be filled to 70% of its gross
weight rating. Technician B says a disposable container can be used to store refrigerant.
Who is right?
A. A only
2
,B. B only
C. Both A and B
D. Neither A nor B
CORRECT ANSWER
The correct answer is D, neither technician is right. Technician A is incorrect because a
container should never be filled to more than 60% of its gross weight rating. Technician B is
incorrect because It is illegal to use anything but "DOT CFR Title 49" containers for recycled
refrigerant. Markings "4BA" or "4BW" on the side of the container show that it meets
requirements. Never collect, salvage, or store refrigerant in a disposable container.
Question 5
A technician checks the engine oil. He finds milky oil on the dipstick. This is an indication
of:
A. improper grade oil being used
B. internal coolant leak in the engine
C. air in the cooling system
D. leaking water pump
CORRECT ANSWER
The correct answer is B. B is correct because an internal leak, from a head gasket for
instance, allows water to mix with the oil in the crankcase, creating the milky solution. A is
incorrect because the reason the oil is milky is because of moisture (water/glycol) that is
entrained in it. C is incorrect because air in the cooling system will not affect the engine oil.
D is incorrect because a leaking water pump will typically leak externally and not affect the
engine oil.
Question 6
3
, Technician A says a thermometer and pressure gauge are necessary to check a refrigerant
container for non-condensable gases (air). Technician B says excessive non-condensable
gases (air) in the container may be vented to the atmosphere. Who is right?
A. A only
B. B only
C. Both A and B
D. Neither A nor B
CORRECT ANSWER
The correct answer is A, only Technician A is right. Technician A is correct because a check for
the presence of non-condensable gases is performed by storing the container at 65°F or
above for 12 hours out of direct sunlight and then connecting a gauge calibrated in 1-psi
divisions to the container and reading the pressure. The next step is to check the air
temperature within 4-in. of the container with an accurate thermometer. Compare your
pressure reading to a standard temperature-pressure chart. Be sure the pressure is at, or
below, the limits shown for a given temperature, otherwise the presence of non-
condensable gases is indicated Technician B is incorrect because the air must then be drawn
off using recovery/recycling equipment only.
Question 7
The driver of a truck is complaining that despite selecting dash air only, air is coming from
both the floor and dash outlets at the same time. Technician A says a stuck mode door
could be the cause. Technician B says a disconnected cable at the heater control valve
could be the cause. Who is right?
A. A only
B. B only
C. Both A and B
D. Neither A nor B
CORRECT ANSWER
4
ANSWERS|BRAND NEW 2026-2027
UPDATE|GRADED A+
Question 1
Refrigerant oil can be injected into an A/C system by:
A. using an RRR machine
B. using a "caulking gun" injection tool
C. pouring it in to an A/C system component before installation
D. all of the above are correct
CORRECT ANSWER
The correct answer is D, all of the answers are correct. A is correct because many RRR
machines have a function that allows oil to be injected into an evacuated A/C system. B is
correct because hand tools are available for manually injecting refrigerant oil into an A/C
system. C is correct because whenever an A/C system component is replaced, a
manufacturer-specified amount of refrigerant oil should be poured in to the component
before installing it.
Question 2
A smeary film on the windshield is an indication of:
A. an evaporator core leak
B. a water control valve leak
C. a heater core leak
D. a restricted evaporator drain
CORRECT ANSWER
1
,The correct answer is C. C is correct because a leaking heater core often emits a residue of
coolant. This residue doesn't readily evaporate from the windshield, and leaves a sweet-
smelling mist. A is incorrect because an A/C evaporator core leak typically won't leak enough
oil to have it appear on the vehicle windshield. B is incorrect because water control valves
are typically located outside the HVAC air box and appear as leaks on the vehicle floor. D is
incorrect because a restricted evaporator drain will put moisture on the windshield, but
won't smear like a glycol leak.
Question 3
What is the purpose of the high-pressure cutoff switch?
A. interrupts compressor operation in the event of high system pressures
B. interrupts compressor operation in the event of low accumulator pressures
C. interrupts compressor operation and increases cooling fan speed
D. vents excessive refrigerant pressure
CORRECT ANSWER
The correct answer is A. A is correct because the purpose of the high-pressure cutoff switch
is to shut down the compressor in the event of high system pressures. This is to protect the
system, and also to prevent the venting of refrigerant. B is incorrect because the clutch
cycling switch is responsible for interrupting compressor operation in the event of low
accumulator pressures. C is incorrect because the high-pressure cutoff switch doesn't
increase cooling fan speed. D is incorrect because the high-pressure cutoff switch is not
responsible for venting excessive refrigerant pressure.
Question 4
Technician A says that that a DOT CFR Title 49 container can be filled to 70% of its gross
weight rating. Technician B says a disposable container can be used to store refrigerant.
Who is right?
A. A only
2
,B. B only
C. Both A and B
D. Neither A nor B
CORRECT ANSWER
The correct answer is D, neither technician is right. Technician A is incorrect because a
container should never be filled to more than 60% of its gross weight rating. Technician B is
incorrect because It is illegal to use anything but "DOT CFR Title 49" containers for recycled
refrigerant. Markings "4BA" or "4BW" on the side of the container show that it meets
requirements. Never collect, salvage, or store refrigerant in a disposable container.
Question 5
A technician checks the engine oil. He finds milky oil on the dipstick. This is an indication
of:
A. improper grade oil being used
B. internal coolant leak in the engine
C. air in the cooling system
D. leaking water pump
CORRECT ANSWER
The correct answer is B. B is correct because an internal leak, from a head gasket for
instance, allows water to mix with the oil in the crankcase, creating the milky solution. A is
incorrect because the reason the oil is milky is because of moisture (water/glycol) that is
entrained in it. C is incorrect because air in the cooling system will not affect the engine oil.
D is incorrect because a leaking water pump will typically leak externally and not affect the
engine oil.
Question 6
3
, Technician A says a thermometer and pressure gauge are necessary to check a refrigerant
container for non-condensable gases (air). Technician B says excessive non-condensable
gases (air) in the container may be vented to the atmosphere. Who is right?
A. A only
B. B only
C. Both A and B
D. Neither A nor B
CORRECT ANSWER
The correct answer is A, only Technician A is right. Technician A is correct because a check for
the presence of non-condensable gases is performed by storing the container at 65°F or
above for 12 hours out of direct sunlight and then connecting a gauge calibrated in 1-psi
divisions to the container and reading the pressure. The next step is to check the air
temperature within 4-in. of the container with an accurate thermometer. Compare your
pressure reading to a standard temperature-pressure chart. Be sure the pressure is at, or
below, the limits shown for a given temperature, otherwise the presence of non-
condensable gases is indicated Technician B is incorrect because the air must then be drawn
off using recovery/recycling equipment only.
Question 7
The driver of a truck is complaining that despite selecting dash air only, air is coming from
both the floor and dash outlets at the same time. Technician A says a stuck mode door
could be the cause. Technician B says a disconnected cable at the heater control valve
could be the cause. Who is right?
A. A only
B. B only
C. Both A and B
D. Neither A nor B
CORRECT ANSWER
4
