Computer Science · Oct / Nov 2018 · Paper 22 · Question 5

The flowchart checks the level of chlorine and the depth of water compared to the height of the swimming pool. Error messages are output if a problem is found. No No No No Yes Yes Yes Yes Yes No OUTPUT "Too little chlorine add more chlorine" OUTPUT "Too much chlorine add more water" OUTPUT "Water too shallow" OUTPUT "Water too deep" INPUT Height, Depth, Chlorine OUTPUT "Pool OK to use" START END Is Depth < Height/3 ? Is Chlorine >3 ? Is Chlorine <1 ? Is OK = True ? Is Depth > Height/2 ? OK True OK False

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