HAC101 Week 5 Mid-Term

Front

Name the part? Options: Idler pulley, Tensioner pulley, Harmonic balancer, A/C compressor clutch

Back

A/C compressor clutch

Front

The 609 license never expires. Select one:

Back

True

Front

In 1902, Michael Faraday invented and patented the first electric air-conditioner. True or False?

Back

False

Front

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)

Back

The Environmental Protection Agency (EPA)

Front

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

Back

CFCs

Front

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

Back

Using chlorofluorocarbons (CFC)-based refrigerant

Front

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?

Back

Tech A

Front

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

Back

latent heat of evaporation.

Front

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

Back

True

Front

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

Back

Well below