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An automated climate control system in a server room is being developed to regulate a cooling fan.

  • The system has two independent temperature sensors, T1 T_1\,T1​ and T2T_2T2​, which output a 1 if the measured temperature exceeds 35°C. To avoid false activations, the fan should only activate if both sensors detect high temperatures.
  • The cooling fan must not run during manual maintenance. A maintenance override switch, MMM, outputs a 1 when maintenance is active. The cooling fan must only turn on if maintenance is NOT active (meaning M M\,M outputs a 0).
  • The output to turn the cooling fan on is FFF.

Complete the logic circuit for this system by drawing or identifying the correct gates and connections to link inputs T1T_1T1​, T2T_2T2​, and M M\,M to the output FFF.

Logic circuit template with inputs T1, T2, M and output F

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Boolean logic Questions

Practise AQA GCSE Computer Science Boolean logic with exam-style questions for GCSE Computer Science. 83 questions, matched to the AQA GCSE Computer Science (8525) specification and written in Paper 1 and Paper 2 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.

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Boolean logic Questions

  1. GCSE
  2. /Computer Science
  3. /Boolean logic