4.2. Flowcharts
A subsection of Information Technology, 9626, through 4. Algorithms and flowcharts
Listing 10 of 14 questions
An office area has an air conditioning system. The user guide for the system contains a troubleshooting flowchart that users can follow if the air conditioning is not working properly. The flowchart is shown in Fig. 3. Use REMOTE to turn on power Is REMOTE working? Is the Air Conditioning working at all? Is the Air Conditioning working properly? Is the Air Intake blocked? Is the Air Filter dirty? Is the Power Supply connected? Is the Power Supply switched on? Is there a Circuit Breaker blown? Are there any heaters on in the room? Is the Temperature set correctly? Are there too many people in the room? Is there a power outage? Is the Timer set correctly? Are Batteries installed? Insert Batteries Replace Batteries Are Batteries dead? Check the Power Supply is connected to power outlet Check the Power Supply is switched on Reset Circuit Breaker Reset Timer correctly Check with Power Company Clear the Air Intake Clean the Air Filter Set the Temperature correctly Reduce the number of people in the room Call Service Engineer to correct fault with Air Conditioning Turn off heaters START No No No No Yes No No No No No No Yes No No No Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes No No Yes STOP Fig. 3
9626_w18_qp_33
THEORY
2018
Paper 3, Variant 3
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Questions Discovered
14