survey format minimum questions

When using the level survey format, can you put a minimum of 10 questions must be answered or not valid?

There's no specific feature for that but there is a workaround. 

1. First, you need to add 1 textbox per question. This is used to identify if the field is filled by creating a condition. So if the field is filled, we need to insert 1 into its corresponding textbox.

Here's an example:

The condition goes like this:

2. After that, use Form Calculation Widget to get the total number of the filled fields.

3. Last is to create a show/hide condition that if the total filled is less than 10 (in my example it's 3) then hide the submit button and show a text message.

Demo: https://form.jotform.com/81747623494971

Feel free to clone this form so you can inspect it.