Final answer:
Critical thinking can be used in appliance repair by analyzing and diagnosing complex appliance malfunctions.
Step-by-step explanation:
Choosing appliance repairer as a backup career would still require the use of critical thinking skills. One way to use critical thinking in this field is by analyzing and diagnosing complex appliance malfunctions. This involves examining the appliance, identifying the problem, and determining the best course of action for repair. Critical thinking allows the repairer to consider all possible causes and solutions, leading to more effective repairs and customer satisfaction.