Room Air Conditioners Quiz

What is the purpose of a room air conditioner?

• To condition the air in outdoor spaces

• To condition the air in an individual room or relatively small open area in a structure

• To condition the air in the entire building

• To condition the air in a car

What are the components of a typical room air conditioning unit?

• Thermocouple, igniter, burner, heat exchanger

• Condenser, radiator, pump, fan

• Fan, heater, filter, thermostat

• Evaporator, compressor, condenser, expansion device

What type of refrigerant is commonly found in newly manufactured room air conditioning units?

• R-22

• R-410A

• R-134a

• R-12

What is the typical temperature of the evaporator in a room air conditioning unit?

• 50ºF

• 40ºF

• 35ºF

• 30ºF

What is the purpose of the compressor in a room air conditioning unit?

• To pump refrigerant through the unit

• To reject heat from the system

• To absorb heat and dehumidify

• To control the fan speed

What is the purpose of a four-way reversing valve in a heat-pump-style room air conditioning unit?

• To control the fan speed

• To pump refrigerant through the unit

• To switch between the heating and cooling cycles

• To absorb heat and dehumidify

What should be done to ensure proper installation of a room air conditioning unit?

• Install the unit without proper support

• Use a dedicated electric circuit for the unit

• Pitch the unit towards the inside of the structure

• Install the unit in any window with a power outlet

What should be kept clean to maintain a room air conditioning unit?

• Evaporator and expansion device

• Thermostat and selector switch

• Filters and coils

• Compressor and condenser

What should be used to help locate leaks in a room air conditioning unit?

• Water

• Dry nitrogen

• Oil

• Gasoline

What should be taken care of when replacing motors in a room air conditioning unit?

• Prevent damage to blowers, fans, and coils

• Use the highest voltage available

• Do not ground the unit

• Use the unit without proper support