DIRECT EXPANSION AIR CONDITIONING - Quiz

1) Which is circulated in VRV system for cooling cycle?

Water Cooled air Cooled brine Liquid refrigerant

2) What is the expansion of HVAC?

Heavy Vehicle Air Conditioning Heating, Vibration, Auto Correction Heating, Ventilation Automatic Control Heating, Ventilation and Air Conditioning

3) Which valve is used for gas charging and pressure checking in central AC plants?

Safety valve Service valve Solenoid valve Non return valve

4) What is the value of absolute vacuum in millimeters of mercury?

-76 -760 -14.7 -10.33

5) Which compressor is used only in central AC systems?

Scroll Screw Rotary Centrifugal