Refrigerant Knowledge Quiz

What is the primary function of a refrigerant in refrigeration systems?

• To reduce humidity

• To increase pressure

• To absorb and transfer heat

• To provide insulation

Which of the following refrigerants is known for having a high global warming potential?

• R134a

• R410A

• R32

• R22

What is a key environmental concern associated with CFCs and HCFCs?

• High energy consumption

• Ozone layer depletion

• Toxicity to humans

• Corrosion of metals

Which refrigerant is known for being phased out due to its ozone-depleting potential?

• R134a

• R32

• R410A

• R22

What is a desirable characteristic of a good refrigerant in terms of safety?

• Corrosive to metals

• High specific volume

• High boiling point

• Non-toxic and non-flammable

Which refrigerant is classified as mildly flammable?

• R134a

• R32

• R22

• R410A

What is the advantage of using infrared refrigerant gas sensors?

• High sensitivity and selectivity

• Low cost

• Miniaturization

• Poor selectivity

Which refrigerant has a lower Global Warming Potential (GWP) compared to others?

• R22

• R410A

• R32

• R134a

What is the main disadvantage of semiconductor refrigerant gas sensors?

• Large size

• Long response time

• High cost

• Poor selectivity

Which refrigerant is commonly used in automotive air conditioning systems?

• R32

• R410A

• R134a

• R22