Question

Which of the following items related to infiltration of outdoor air in an air conditioning system, are correctly matched?

            1. Stack effect                         : Height of building

            2. Crack length method          : Wind velocity

            3. Air change method             : Floor area

            4. Door opening                      : Occupancy in kitchen

            Select the correct answer using the code given below:

            (a) 1 and 2                   (b) 1 and 3

            (c) 1 and 4                   (d) 2 and 4