Refrigeration and Air Conditioning: Heat Transfer Concepts

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1. 1

   What is the primary method of heat transfer in an air conditioning system?

   A Convection B Conduction C Radiation
2. 2

   Which component is responsible for removing heat from the refrigerant?

   A Compressor B Condenser C Evaporator
3. 3

   What role does the evaporator play in air conditioning?

   A Compresses refrigerant B Heats the air C Absorbs heat from the environment
4. 4

   How does the compressor affect refrigerant in the system?

   A Pressurizes and circulates it B Cools it directly C Expands it
5. 5

   Which form of heat transfer occurs in the evaporator coil?

   A Radiation B Conduction C Convection
6. 6

   What happens to the air as it passes over the evaporator coils?

   A It becomes humid B It heats up C It cools down
7. 7

   Why is it important to ensure proper airflow over the condenser coils?

   A To increase pressure in the system B To effectively release heat C To prevent refrigerant loss
8. 8

   Which component expands refrigerant to reduce its pressure?

   A Evaporator B Expansion valve C Condenser
9. 9

   What is the phase change of refrigerant in the condenser?

   A From gas to liquid B From liquid to solid C From solid to gas
10. 10

    What is a common refrigerant used in air conditioning systems?

    A Methane B Freon (R-22) C Propane