Refrigerants and Refrigeration Systems Quiz

R-410A is a commonly used refrigerant in household refrigerators and air conditioners.

The evaporator removes heat from the space being cooled in a refrigeration system.

R-410A is known for its low environmental impact and is commonly used as a replacement for R-22.

The expansion valve controls the flow of refrigerant between the evaporator and the condenser.

R-290 (Propane) has a lower global warming potential (GWP).

The compressor increases the pressure of the refrigerant in a refrigeration cycle.

Refrigerants with lower global warming potential (GWP) are preferred for environmental reasons.

The Second Law of Thermodynamics is primarily associated with refrigeration systems.

The condenser converts the refrigerant from vapor to liquid in a refrigeration cycle.

HFCs (Hydrofluorocarbons) do not deplete the ozone layer but contribute to global warming.

Superheat refers to the temperature increase of the refrigerant vapor above its boiling point in a refrigeration system.

R-717 (Ammonia) is commonly used in large industrial refrigeration systems due to its high efficiency and low cost.

The primary function of an expansion valve in a refrigeration system is to regulate the flow of refrigerant into the evaporator.

R-717 (Ammonia) is classified as a natural refrigerant.

The coefficient of performance (COP) measures the efficiency of the refrigeration cycle.

The accumulator prevents liquid refrigerant from entering the compressor in a refrigeration system.

Evaporation occurs when refrigerant absorbs heat from the surroundings and changes from a liquid to a vapor.

The condenser is responsible for removing heat from the refrigerant in a refrigeration cycle.

R-410A has been widely adopted as a replacement for R-22 due to its lower ozone depletion potential.