What type of refrigeration system use a refrigerant for cooling?
A) Absorption
B) Functional
C) Mechanical
D) Evaporation
Answer: C
Explanation: A) Incorrect. Absorption systems cycle water and a heat absorbent material (typically lithium bromide, LiBr) through a closed loop system.
B) Incorrect. Mechanical systems use a refrigerant (a fluid that boils at low temperatures) for cooling.
C) Correct. Mechanical systems use a refrigerant (a fluid that boils at low temperatures) for cooling.
D) Incorrect. Mechanical systems use a refrigerant (a fluid that boils at low temperatures) for cooling.
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