Be careful asking questions that you already know the answer to. First ask yourself "why am I asking this question". If the answer is - to help my child to learn or to encourage my child to talk then read on. 

When I was in 2nd year

After that I learned that you got more conversation and conversation attempts from children if you made more comments and asked just a few questions.

Often in clinic I found parents making the same mistake I had made, especially with reluctant talkers. They probably did it more because of where they were (speech pathologists office).

I started using a little demonstration (I always asked the parents permission first)

I would ask the parent
"What is your name? "
"What colour is this?"
and then hold up several objects and ask "What is this?"
"What have you just learned from my questions?"

The answer to this question is nothing! (except perhaps what it feels like for the child to be on the receiving end) Both the parent and I knew the answers to all of the questions. I wasn’t teaching them anything, just testing.
 By making comments you have more chance of teaching the child new things. A good ratio of comments to questions is about 4:1

Not all questions are bad questions. Children need to learn to answer questions to do well at school. Some types of questions lead to more opportunities for learning than others. It is important to think about how you will support the child to answer the question if they don’t know the answer.

The following example uses forced choice to help the child answer the question

[b]If you know that Jamie knows what a banana is but you are not sure she knows what a pear is. If you ask “what is this? (pear)” and she looks at you blankly try asking “is this a banana or a pear?” She knows it is not a banana so she is more likely to say pear. [/b]

[b]If you think she might need extra support you may like to shake your head as you say banana and nod and smile as you say pear. That increases the likelihood she will get it right and gives you the opportunity to praise her knowledge and keep her engaged in the activity.[/b]

[b]Reading books with your child is a good opportunity to practice commenting and questioning. Some good questions to ask are[/b]

What's happening?
-what will happen next?
-How is she feeling? Why?
-Why did that happen?
-Why did the girl do that?
-How do you know?
-What would you do?

some examples of comments include

Look what’s happening. The boy has fallen off his bike.
The boy is sad because his bike is broken