An algorithm for monitoring a temperature sensor is shown below.
1 threshold ← 25.5
2 reading ← USERINPUT
3 IF reading > threshold THEN
4 OUTPUT "Warning: High Temp"
5 ELSE
6 WHILE reading <= threshold
7 reading ← USERINPUT
8 IF reading < 0 THEN
9 OUTPUT "Error: Sub-zero"
10 ENDIF
11 ENDWHILE
12 OUTPUT "Normalised"
13 ENDIF
On which line is indefinite iteration first used in this algorithm?
Line 3
Line 6
Line 8
Line 11
208 exam-style questions on AQA GCSE Computer Science Representing algorithms. Each one has a worked solution and a mark scheme showing where the marks go.