M

Mr. Dubey • 52.30K Points
Coach 

Q. Which of the following qualities is not possessed by the filters in the air conditioning system?

(A) they should be capable of removing dust particles from the incoming air
(B) they should afford easy cleaning
(C) they should offer low frictional resistance to the airflow
(D) they should offer high frictional resistance to the airflow
Correct : Option (D)

Explanation: 
 the filters in the air conditioning system should be capable of removing dust particles from the incoming air. they should afford easy cleaning and should offer low frictional resistance to the airflow.

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