I'm the sole IT technician for a medium sized business and my workload has become too much for one person. So, hooray, I've been given the go-ahead to hire another tech to work underneath me.

In previous jobs I've been in a similar position and it's turned out out that a lot of people can make it sound like they have a lot of experience that turn out to know nothing.

I've found that quizzing applicants on some technical knowledge about certain aspects of their responsibilities has helped show who knows his stuff. 

**Example questions**: 

There's a computer problem with symptom A and B, what is the most likely explanation? (Usually I make the answer painfully obvious to anyone with experience).

How do you reset a user's password in Windows Server? (General explanation is fine).

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However, I'm not certain this practice is okay or if there is anything I need to take into consideration doing it in this position.

Is this acceptable, and is there anything that I need to consider?