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MRAC Set-1
Direct Expansion Air Conditioning
15

Direct Expansion Air Conditioning MCQ with Answers

15) Why the U trap is provided in water drain line of AHU?

Allows air from outside

Block dust from outside

Prevent entry of foul smell

Ensure free flow of drain water

Answer is:

Prevent entry of foul smell

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Related Direct Expansion Air Conditioning MCQ with Answers

16) What is the benefit of VRV system?

Bigger in size

Many controls

Energy saving

Saving refrigerant

Answer is:

Energy saving

17) 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

Answer is:

VRV AC system

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

Refrigeration

Ducting system

Refrigerant flow

Interlocked wiring

Answer is:

Ducting system

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

Bioptional drive

Trioptional drive

Variable frequency drive

Constant frequency drive

Answer is:

Variable frequency drive

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