MACS Test Questions With All Correct Answers 2025|2026 Latest
Update
1. How much oil is lost during recovery? Very little if any
2. What's an issue with flushing an AC
sys- tem? It dosnt remove all debris from system
3. Is Topping Off a charge in a car allowed? Yes
4. Hold time after a system recovery? 5mins
5. What will happen to oil in a R134a
sys- tem if left open? Sucks moisture from air
6. Safety info about refrigerant is
kept where? MSDS Sheet
7. What is the purpose of service caps? They're the primary seal
8. What is the result of R134a leaking
into the atmosphere? It gets trapped in the troposphere
9. Is 1234yf flammable? Yes only a little
10. What must be done after
purchasing a new recovery Register it with the EPA
machine?
11. Why would excess oil come out System probably had an oil overcharge
during recovery?
12. What is the DOT# for recovery tanks? 4BA or 4bW
13. What system requires extra
attention during recovery? 1234yf
14. What is the standard for SAE J2791? Leak detector that picks up 4 grams or
less a
year
1/
2
Update
1. How much oil is lost during recovery? Very little if any
2. What's an issue with flushing an AC
sys- tem? It dosnt remove all debris from system
3. Is Topping Off a charge in a car allowed? Yes
4. Hold time after a system recovery? 5mins
5. What will happen to oil in a R134a
sys- tem if left open? Sucks moisture from air
6. Safety info about refrigerant is
kept where? MSDS Sheet
7. What is the purpose of service caps? They're the primary seal
8. What is the result of R134a leaking
into the atmosphere? It gets trapped in the troposphere
9. Is 1234yf flammable? Yes only a little
10. What must be done after
purchasing a new recovery Register it with the EPA
machine?
11. Why would excess oil come out System probably had an oil overcharge
during recovery?
12. What is the DOT# for recovery tanks? 4BA or 4bW
13. What system requires extra
attention during recovery? 1234yf
14. What is the standard for SAE J2791? Leak detector that picks up 4 grams or
less a
year
1/
2
