DIRECT EXPANSION AIR CONDITIONING - Practice Mode

1) What is the benefit of VRV system?

Bigger in size Many controls Energy saving Saving refrigerant

Correct Answer: Energy saving

2) Which type of AC system is capable of heating or cooling in different zones simultaneously?

Package AC Central plant AC VRV AC system VAV AC system

Correct Answer: VRV AC system

3) Which distribution system is absent in VRV operation compared to central AC plant?

Refrigeration Ducting system Refrigerant flow Interlocked wiring

Correct Answer: Ducting system

4) Which version of motors are used in ductless multisplit system?

Bioptional drive Trioptional drive Variable frequency drive Constant frequency drive

Correct Answer: Variable frequency drive

5) Which refrigerant is used with VRF AC system?

R 11 R 12 R 502 R 410A

Correct Answer: R 410A

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