An automated emergency shutdown system for a steam turbine is monitored by sensors PPP, QQQ, RRR, SSS, TTT, and UUU. The system triggers a shutdown when the output Z Z\,Z is high, governed by the Boolean logic expression:
Z=(P AND NOT Q) OR (R AND S AND NOT T) OR (U AND P) Z = (P \text{ AND } \text{NOT } Q) \text{ OR } (R \text{ AND } S \text{ AND } \text{NOT } T) \text{ OR } (U \text{ AND } P) Z=(P AND NOT Q) OR (R AND S AND NOT T) OR (U AND P)Determine the number of rows, excluding any headings, required to construct a complete truth table for this logic expression.
Practise OCR GCSE Computer Science Boolean logic with exam-style questions for GCSE Computer Science. 27 questions, matched to the OCR GCSE Computer Science (J277) specification and written in Component 01 and Component 02 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.