HAC101 Week 5 Mid-Term

Name the part?

• Idler pulley

• Tensioner pulley

• Harmonic balancer

• A/C compressor clutch

The 609 license never expires.

Select one:

• True

• False

In 1902, Michael Faraday invented and patented the first electric air-conditioner.

Select one:

• True

• False

Automotive air-conditioning is federally regulated by ________.

Select one:

• The Environmental Protection Agency (EPA)

• Occupational Safety and Health Administration (OSHA)

• The Department of Transportation (DOT)

• The Registry of Motor Vehicles (RMV)

_______ made it possible for air-conditioning systems to be used by consumers with no apparent harm, unlike the ammonia systems.

Select one:

• MILs

• DTCs

• CFCs

• EPAs

Which of these heating/cooling systems was the first to be free of apparent harm to passengers?

Select one:

• Passing air over coils of compressed ammonia

• Transferring heat to the cabin from the exhaust system

• Bringing a small gas lamp into the cabin for heat

• Using chlorofluorocarbons (CFC)-based refrigerant

Tech A says that the EPA regulates automotive air-conditioning systems. Tech B says that EPA tests air-conditioning systems every 5 years. Who is correct?

Select one:

• Tech A

• Tech B

• Both A and B

• Neither A nor B

The heat required to change the water at its maximum temperature from a liquid to a gas is called:

Select one:

• latent heat of evaporation.

• latent heat of condensation.

• latent heat of boiling.

• None of the answers listed.

By adding a small amount of pressure to automotive refrigerant, the boiling point of the refrigerant will rise.

Select one:

• True

• False

The refrigerant in the A/C system must have a boiling point ______ freezing to manipulate its boiling and condensing points by changing pressure.

Select one:

• Well above

• Well below

• Right at

• None of the answers listed