1.Walk me through the last repair you did from start to finish.
Why they ask
It's the fastest way to tell if you've done the work or just watched it. They listen for how you diagnosed the problem, not only how you fixed it.
How to answer
- Pick a real, specific job, like a leaking shutoff valve under a kitchen sink
- Say how you figured out the cause before you grabbed a part
- Name the parts and tools you used
- Say how you tested the fix and left the area clean

