Question: If the mechanic’s gauges rise from a vacuum to pressure, what is required?

Answer: Additional recovery

Question: What is the only way to fully clear moisture from the A/C system?

Answer: Replacing the desiccant

Question: Pressure ______ the boiling point

Answer: Raises

Question: Vacuum _______ the boiling point

Answer: Lowers

Question: What should you do when replacing hoses?

Answer: Make sure you have the correct type/size of tubing

Question: What does GWP stand for?

Answer: Global Warming Potential

Question: CO2 is equal to what A/C system?

Answer: R-744

Question: HFO-1234yf systems are acceptable in what kinds of vehicles?

Answer: Passenger cars, light-duty trucks, medium-duty passenger vehicles, heavy-duty pickup trucks, and complete heavy-duty vans

Question: HFO-1234yf systems are not acceptable in what kinds of vehicles?

Answer: Heavy-duty trucks, refrigerated transport, and off-road vehicles such as farm equipment

Question: HFO-1234yf is classified by ASHRAE as what?

Answer: A2L- mildly flammable