In an automated chemical manufacturing plant, a reactor is considered to be in a 'Safe State' only when the stirrer motor (SSS), the catalyst feed pump (CCC), and the heating element (HHH) are all deactivated (set to false).
Construct a Boolean logic statement using the variables SSS, CCC, and H H\,H to represent the conditions required for the system to display the status 'Safe State'.
15 exam-style questions on Edexcel GCSE Computer Science Truth tables, covering Applying logical operators in truth tables. Each one has a worked solution and a mark scheme showing where the marks go.