52Medium
0/3

An automated greenhouse ventilation system controls a cooling fan, FFF.

  • The system has two temperature sensors, T1 T1\,T1 and T2T2T2. The fan should turn on if either sensor detects a high temperature.
  • The fan must not turn on if the emergency override switch, EEE, is active (value 1).
  • The output to turn the fan on is FFF.

An incomplete logic circuit for this system is shown below:

An incomplete logic circuit diagram with inputs T1, T2, and E on the left, and output F on the right. Inputs T1 and T2 are connected to the inputs of Gate X. Input E is connected to the input of Gate Y. The output of Gate X and the output of Gate Y are the two inputs for Gate Z. The output of Gate Z is F.

Identify the three logic gates required to complete this circuit.

  • Gate X:
  • Gate Y:
  • Gate Z:
[3]

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.

PreviousNext

Boolean logic Questions

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