Practice Refrigerants – Classification, Nomenclature, Desirable Properties, And Selection (6)

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11 questions

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4 cards from this section. Quick, good the night before a test.
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5 questions · about 3 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
What is a natural refrigerant? Can you name one?
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Think of substances used historically in ice making.
Question 2.
What does the 'R' stand for in refrigerants like R-410A?
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This is the first letter in the word.
3Question 3.
Which of the following is a natural refrigerant?
- R-134a
- CO2
- R-410A
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Think of naturally occurring substances.
4Question 4.
True or False: Synthetic refrigerants contribute to ozone depletion.
- True
- False
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Recall the impacts of CFCs on the environment.
Question 5.
Propose a refrigerant for a new refrigerating system designed for tropical climates. Justify your choice based on its properties and environmental impact.
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Consider the environmental regulations and the unique conditions of tropical climates.
Question 6.
Critically analyze the trade-offs between using natural refrigerants versus synthetic ones in modern HVAC systems.
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Reflect on both the short-term efficiency and long-term environmental consequences.

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