ASE 609 QUESTIONS WITH CORRECT
ANSWERS 2025-2026
The recovery process on an R-12 or
R-134 A/C system should continue until a stable vacuum is held by the system for:
(A) 1 minute
(B) 2 minutes
(C) 4 minutes
(D) 5 minutes CORRECT ANSWER (B) 2 minutes
A recycled refrigerant container has been checked and found to be above the given pressure
limit for the ambient temperature.
Technician A says that the refrigerant container should be placed in a cooler storage area before
use.
Technician B says that the vapor in the container should be slowly vented into a refrigerant
handling unit.
Who is right?
(A) A only
(B) B only
(C) Both A and B
(D) Neither A nor B CORRECT ANSWER (B)
B only why is A wrong?
The ozone layer filters out most of the sun's harmful:
, (A) Infrared radiation.
(B) Ultraviolet radiation.
(C) Gamma radiation.
(D) Alpha radiation. CORRECT ANSWER (B) Ultraviolet radiation.
The reduction of ozone in the stratosphere could cause:
(A) an increase in skin cancer and eye cataracts
(B) an increase in plant life growth.
(C) an increase in the earth's polar ice.
D) an increase in marine life growth. CORRECT ANSWER (A) an increase in skin cancer
and eye cataracts
Technician A says that sunlight striking CFC molecules can cause chlorine to be released.
Technician B says that chlorine atoms react with ozone to produce chlorine monoxide.
Who is right?
(A) A only
(B) B only
(C) Both A and B
(D) Neither A nor B CORRECT ANSWER (C) Both A and B
R-134a refrigerant must be recycled to meet which of these purity standards?(A) J2788
(B) DOT-4BA
(C) J1991
(D) J2099 CORRECT ANSWER (D) J2099
ANSWERS 2025-2026
The recovery process on an R-12 or
R-134 A/C system should continue until a stable vacuum is held by the system for:
(A) 1 minute
(B) 2 minutes
(C) 4 minutes
(D) 5 minutes CORRECT ANSWER (B) 2 minutes
A recycled refrigerant container has been checked and found to be above the given pressure
limit for the ambient temperature.
Technician A says that the refrigerant container should be placed in a cooler storage area before
use.
Technician B says that the vapor in the container should be slowly vented into a refrigerant
handling unit.
Who is right?
(A) A only
(B) B only
(C) Both A and B
(D) Neither A nor B CORRECT ANSWER (B)
B only why is A wrong?
The ozone layer filters out most of the sun's harmful:
, (A) Infrared radiation.
(B) Ultraviolet radiation.
(C) Gamma radiation.
(D) Alpha radiation. CORRECT ANSWER (B) Ultraviolet radiation.
The reduction of ozone in the stratosphere could cause:
(A) an increase in skin cancer and eye cataracts
(B) an increase in plant life growth.
(C) an increase in the earth's polar ice.
D) an increase in marine life growth. CORRECT ANSWER (A) an increase in skin cancer
and eye cataracts
Technician A says that sunlight striking CFC molecules can cause chlorine to be released.
Technician B says that chlorine atoms react with ozone to produce chlorine monoxide.
Who is right?
(A) A only
(B) B only
(C) Both A and B
(D) Neither A nor B CORRECT ANSWER (C) Both A and B
R-134a refrigerant must be recycled to meet which of these purity standards?(A) J2788
(B) DOT-4BA
(C) J1991
(D) J2099 CORRECT ANSWER (D) J2099
