week 4 Quiz

Dual Evaporator System:

• Refrigeration system with three separate evaporators
• Air conditioning system with one evaporator
• Refrigeration system with two separate evaporators
• Heating system with two separate evaporators

Three most common types of car refridgerant:

• A-123b
• R-410a
• R-22
• R-134a, R-12, and R-1234yf

Dichlorodifluoromethane

• CFC-12
• O3
• CO2
• H2O

Tetrafluoroethane

• H2O
• HFC-134a
• CH4
• CO2

Tetrafluoropropene:

• HFO-1234yf

• CH4
• CO2
• H2O

Airflow to the condenser is assisted by:

• engine cooling fan

• sunlight
• vacuum
• wind

•The electromagnetic clutch is energized by:

• relays

• switches

• modules

• all of the above

Compressors:

• •Circulates the refrigerant through the system and also creates the pressure change in the refrigerant

• •Circulates the water through the system and also creates the pressure change in the refrigerant

• •Circulates the oil through the system and also creates the pressure change in the refrigerant

• •Circulates the refrigerator through the system and also creates the pressure change in the refrigerant

The compressor pulley rides on a:

• bearing

• chain
• string
• rope

•Transformation from liquid to gas begins when the air from the passenger compartment passes over the evaporator tubes and fins.

• True

• False