HAC 101 Week 4

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 standards 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 that 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 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 kelvin.

• 1 Btu.

• 1 joule.

• 1 rankine.

When the pressure of a gas is raised, its 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 disengaged by using:

• hydraulic pressure.

• vacuum.

• compressed air.

• electromagnetism.

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