An algorithm is designed to monitor a chemical reaction temperature and update its hazard status. The pseudocode is shown below:
1 temp ← USERINPUT
2 duration ← USERINPUT
3 threshold ← 80.0
4 status ← "normal"
5 WHILE temp > threshold DO
6 status ← "alert"
7 IF duration > 15 THEN
8 status ← "critical"
9 ENDIF
10 temp ← temp - 5.0
11 ENDWHILE
12 OUTPUT status
Select the option that shows the line number where selection is first used in this algorithm.
Line 4\text{Line 4}Line 4
Line 5\text{Line 5}Line 5
Line 7\text{Line 7}Line 7
Line 10\text{Line 10}Line 10
Practise AQA GCSE Computer Science Programming concepts with exam-style questions for GCSE Computer Science. 100 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.