Refrigeration and Air Conditioning Maintenance

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1. 1

   What is the primary function of a thermostat in an air conditioning system?

   A To maintain the desired temperature by controlling the system. B To clean the air before it enters the system. C To promote air circulation in the room.
2. 2

   Which component of an air conditioning system is responsible for compressing the refrigerant?

   A Evaporator coil B Compressor C Condenser
3. 3

   Why is it important to regularly replace or clean air filters in an AC unit?

   A To prevent noise. B To increase the system size. C To ensure efficient operation and maintain air quality.
4. 4

   What might cause an air conditioner to leak water indoors?

   A A clogged condensate drain. B Low refrigerant levels. C An oversized system.
5. 5

   What should be checked if an air conditioner is blowing warm air?

   A Air filter cleanliness B Refrigerant level C Thermostat placement
6. 6

   How often should routine maintenance checks be performed on an AC unit?

   A Every three months B Every month C Every year
7. 7

   What is a sign of a failing compressor in an air conditioning unit?

   A Cold air blowing from the vents B Loud noises or vibrations C Reduced airflow
8. 8

   What could be a reason for the air conditioner fan not running?

   A A blown fuse or tripped circuit breaker B Contaminated refrigerant C High thermostat setting
9. 9

   Why should condenser coils be kept clean?

   A To change the refrigerant cycle direction. B To reduce noise levels. C To improve heat release efficiency.
10. 10

    What could be a reason for an air conditioning system cycling on and off too frequently?

    A Clean air filter B An oversized system C Proper thermostat setting