CHILLER SYSTEM - Practice Mode

1) Which type of pump is used in AC plants for circulation of chilled water?
Correct Answer: Centrifugal
2) Which secondary refrigerant is used for human comfort in chiller plant AC?
Correct Answer: Water
3) What is meant by hydronic system?
Correct Answer: Water distribution system in HVAC
4) Which device is used to measure the density of brine solution?
Correct Answer: Hydrometer
5) What is the pH level of water used for final rinsing of condenser tubes after descaling?
Correct Answer: 7 to 7.5
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