1. When recovery/recycling equipment is used to removerefrigerant from a mobile A/C system, how much lubricant will beremoved during operation?
A. 4 ounces
B. Generally, very lttle, if any
C. The complete system lubricant charge
D. At least 6 ounces
2. Which SAE standard(s) must be referred to on the label ofapproved HFC-134a refrigerant recycling machines?
A. SAE J1988 or SAE J1627
B. SAE J1989 or SAE J2791
C. SAE J1990 or SAE J2297
D. SAE J2210 or SAE J2788
3. CFC-12 recovery equipment has SAE 3/8-inch service fittings.HFC- 134a recovery equipment has:
A. 1/2 inch Acme threads
B. 10 mm threads
C. Quick-couple design
D. Same as CFC-12 recovery equipment
4. To recover and recharge refrigerant from an HFO-1234yfsystem, a shop will need:
A. Only a new storage tank
B. A new recovery, recycling and recharging machine
C. No new equipment
D. A new compressor
5. To what does Global Warming Potential (GWP) refer?
A. Relative ability to warm a car cabin
B. Relative ability to produce global warming effect
C. A global attempt to address global warming
D. Relative ability to cool the planet
