The Clean Air Act (CAA)___________.

• Mandates that each shop maintain a current government-issued license.

• 
  Outlines the specific refrigerants that can be safely used for each application.

• Sets the standard for shops that do air-conditioning work.

• All of the above.

The 609 license never expires.

• True

• False

The 609 License ensures that the technician knows how to repair the automotive air-conditioning systems.

• True

• False

Section 609 of_____ the federal law regulates air emissions from stationary and mobile sources contains all of the motor vehicle air-conditioning (MVAC) requirements and laws.

• 
  The OSHA code and compliance guidelines

• 
  The Clean Air Act (CAA)

• The Department of Transportation (DOT)

• 
  None of the above

The_____ of the refrigerant system system is designed to allow easy transformation of the refrigerant from a liquid to a gas.

• High Side

• 
  Low Side

• 
  Medium Side

• 
  None of the above

The amount of heat required to raise the temperature of 1 pound of water at 32*F (0*C) and at atmospheric pressure by 1*F would be:_____

• 1. 1 Kelvin

• 1 BTU

• 
  1 Joule

• 1 Rankine

When the pressure of a gas is raised, it's temperature:

• goes down

• remains unchanged

• goes up

• becomes unstable

Radiation describes the amount of heat it takes to move temperature up or down in degrees.

• True

• 
  False

The A/C compressor clutch is engaged and is disengaged by using:_____

• Hydraulic pressure

• Compressed air

• 
  Vacuum

• Electromagnetism

The air-conditioning hose connections are secure to the hose using special unions known as _____ that must be carefully assembled to avoid leaks.

• Wobbles

• Billets

• Crimps

• 
  Baffles