MACS 609 UPDATED EXAMS TEST PAPER
QUESTIONS AND ANSWERS SURE A+
✔✔Paid technicians who service or repair mobile A/C systems using HFC-22 as
refrigerant, or service cargo refrigeration equipment: - ✔✔Must be Section 608 Type II
certified
✔✔HFO-1234yf is classified as "A2L-mildly flammable." This means: - ✔✔It can ignite
under certain circumstances
✔✔Section 609 of the Clean Air Act requires that recovery/recycling equipment: -
✔✔Must be registered with the EPA
✔✔What is the advantage of using refrigerant identification equipment? - ✔✔Allows the
ability to determine what type of refrigerant is in system
✔✔When performing engine pre-heat for refrigerant removal, the technician should do
ALL of the following EXCEPT: - ✔✔Make sure the compressor is operating
✔✔If a large amount of lubricant is removed from a system during refrigerant recovery: -
✔✔The system likely contained too much lubricant
QUESTIONS AND ANSWERS SURE A+
✔✔Paid technicians who service or repair mobile A/C systems using HFC-22 as
refrigerant, or service cargo refrigeration equipment: - ✔✔Must be Section 608 Type II
certified
✔✔HFO-1234yf is classified as "A2L-mildly flammable." This means: - ✔✔It can ignite
under certain circumstances
✔✔Section 609 of the Clean Air Act requires that recovery/recycling equipment: -
✔✔Must be registered with the EPA
✔✔What is the advantage of using refrigerant identification equipment? - ✔✔Allows the
ability to determine what type of refrigerant is in system
✔✔When performing engine pre-heat for refrigerant removal, the technician should do
ALL of the following EXCEPT: - ✔✔Make sure the compressor is operating
✔✔If a large amount of lubricant is removed from a system during refrigerant recovery: -
✔✔The system likely contained too much lubricant
