Air conditioning system construction & Operation

What should you do before starting any work on an air conditioning system?

• Buy new tools

• Check the weather forecast

• Consult local authorities for licensing requirements

• Read a book about air conditioning

Which of the following is NOT a method of heat transfer?

• Radiation

• Convection

• Conduction

• Reflection

What happens during evaporation in an air conditioning system?

• A liquid turns into a gas

• A gas turns into a liquid

• A solid turns into a liquid

• A liquid turns into a solid

Which refrigerant was phased out due to its ozone-depleting properties?

• R12

• HFO-1234YF

• R134a

• R744

The Condenser converts high pressure gas in to a high pressure liquid by dissipating heat to the surrounding area. Where is the condenser located?

• In front of the vehicle radiator

• Inside the dashboard HVAC system

• located on the engine and driven by a belt

• Mounted on the dashboard

The purpose of the filter drier is to:

• Act as a liquid storage canister

• To filter refrigerant

• To dry refrigerant

• All answers shown

The thermal expansion valve (TX valve and fixed orifice tube) serve what purpose? Select all correct answers.

• To lower the refrigerant pressure

• To lower the refrigerant temperature

• Controls the flow of the refrigerant into the evaporator.

The evaporator absorbs heat from the passenger compartment ?

• True

• False

What is the role of the compressor in an air conditioning system?

• To cool the air

• To absorb heat from the passenger compartment

• To raise the pressure and temperature of the refrigerant

• To filter the refrigerant