Question 2: The manager of a community centre should decide about the location of a propane tank {PT} inside the premises ofthe community centre. The community centre consists ofa playground (PG), a drive-in theater (OT), and a large atmospheric water tank (WT) which feeds the adjacent residential complex. The manager has two options for the location of the PT, locations A and B. The distances between the PT and the other targets are depicted in the figure below. @ a 5m 10m 0 6' 106' o 800,. / 10m Location A Location B Given reball as the most probable re scenario for the propane tank, the community manager wants to choose the location attributed with the lowest total risk considering the damage to the WT and the death of people at PG and DT. Below are the characteristics ofthe PT as well as the WT, PG, and DT: - The PT contains 1500 kg of propane. - The volume ofthe WT is 150,000 m3 and is worth $2 million. - The number of people at the PG and DT are 50 and 120 people, respectively. a The statistical value of life is $3.5 million. To calculate the heat radiation ofthe reball, the manager uses the fireball spreadsheet but to account for the spreadsheet's inaccuracy considers a safety factor of 1.5. In other words, the intensity of radiant heat calculated by the spreadsheet should be multiplied by 1.5. Which PT location would be attributed to a lower risk? (20 Points) Tip: I The same assumption made in Question 1 for the exposure time can be made for Question 2. - Risk of damage to the WT is the damage probability of WT times its value. Risk of death is the number of dead people times the statistical value of life. Total risk is the sum of these risk values