Q2: A tank having a cross sectional area of 2ft², is operating at steady state with an inlet flow rate of (2) cfm. The flow head characteristics are shown below. b. If the flow to the tank increase from (2) 10 (2.2) cfm. according to a step change. Calculate the level (h) two minutes after the change occurs 2.4 2.2 2 1 0.3 1 HE