CHILLER SYSTEM - Quiz

1) Which type of pump is used in AC plants for circulation of chilled water?

Gear Screw Rotary Centrifugal

2) Which secondary refrigerant is used for human comfort in chiller plant AC?

Brine Water Ammonia Ethylene glycol

3) What is meant by hydronic system?

Pressure equaliser Humidity control system Pressure control system Water distribution system in HVAC

4) Which device is used to measure the density of brine solution?

Lactometer Hydrometer Hygrometer Thermometer

5) What is the pH level of water used for final rinsing of condenser tubes after descaling?

4 to 4.5 7 to 7.5 10 to 12 9 to 10.5