ASE AC 609 EXAM QUESTIONS & CORRECT ANSWERS LATEST 2025

ASE AC 609 EXAM QUESTIONS & CORRECT
ANSWERS LATEST 2025




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 - 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 - 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. - 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. - 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