ASE 609 CERTIFICATION ACTUAL TEST
QUESTIONS AND SOLUTIONS GRADED A+
PREMIUM RESOURCE
●● Before reuse, what must be done with HFC-134a that has been
recovered from a mobile A/C system using recovery-only equipment?
Answer: Question 2 options:
Recycle the HFC-134a before reuse using certified equipment
●● When can HFC-134a become combustible in a mobile air
conditioning system?
Answer: If shop air is used in the system in an attempt to check for leaks
and HFC-134a is present
●● Which type of mobile A/C system will usually require additional
time / precautions to extract all the refrigerant?
Answer: Accumulator type
●● Electronic leak detectors certified to SAE J2791 have the capacity of
identifying leakage rates as low as:
Answer: 0.15 ounces per year
, ●● When recovery/recycling equipment is used to remove refrigerant
from a mobile A/C system, how much lubricant will be removed during
the operation?
Answer: Generally, very little, if any
●● Why is it necessary to insure that service port caps containing good
seals are installed?
Answer: To minimize refrigerant loss
●● Which of the following statements is correct about flushing A/C
systems?
Answer: Flushing solvents may remain in A/C systems, causing
problems
●● When using an HFC-134a refrigerant recovery machine, after
competing the first recovery process, how long must you wait, then
check the machine's gauges for a rise in pressure above vacuum, which
would indicate that the system still contains some refrigerant?
Answer: 5 minutes
●● Which type of tank must be used during the transfer of refrigerant?
Answer: Question 10 options:
Tanks marked DOT 4BA
QUESTIONS AND SOLUTIONS GRADED A+
PREMIUM RESOURCE
●● Before reuse, what must be done with HFC-134a that has been
recovered from a mobile A/C system using recovery-only equipment?
Answer: Question 2 options:
Recycle the HFC-134a before reuse using certified equipment
●● When can HFC-134a become combustible in a mobile air
conditioning system?
Answer: If shop air is used in the system in an attempt to check for leaks
and HFC-134a is present
●● Which type of mobile A/C system will usually require additional
time / precautions to extract all the refrigerant?
Answer: Accumulator type
●● Electronic leak detectors certified to SAE J2791 have the capacity of
identifying leakage rates as low as:
Answer: 0.15 ounces per year
, ●● When recovery/recycling equipment is used to remove refrigerant
from a mobile A/C system, how much lubricant will be removed during
the operation?
Answer: Generally, very little, if any
●● Why is it necessary to insure that service port caps containing good
seals are installed?
Answer: To minimize refrigerant loss
●● Which of the following statements is correct about flushing A/C
systems?
Answer: Flushing solvents may remain in A/C systems, causing
problems
●● When using an HFC-134a refrigerant recovery machine, after
competing the first recovery process, how long must you wait, then
check the machine's gauges for a rise in pressure above vacuum, which
would indicate that the system still contains some refrigerant?
Answer: 5 minutes
●● Which type of tank must be used during the transfer of refrigerant?
Answer: Question 10 options:
Tanks marked DOT 4BA
