Nothing wrong with asking questions unless they're such that it shows you have made little or no attempt to work out the answer for yourself first.

Use whatever resources are available to you to do a bit of research on issues yourself before bugging someone else. They will notice and appreciate it.

Question A (annoying) "I couldn't login, do you think it's because I didn't capatilise the first letter in my password, I thought case didn't matter? Please help me!"

Question B (reasonable) "I'm having an issue getting my SQL statement to work correctly. I have tried this, this and this, and spent half an hour on google trying to find a solution but I'm stumped. When you have a bit of time can you give me an assist please."

Question C (best question) "I need to do X, could you show me where I can find out how to do that?"