How do I execute a WP_Query to get all the questions of a particular category?

Hi! I'm loving the Q&A plugin and how easy it is to integrate into an existing wordpress site.

Speaking of integration, I have an existing wordpress site so I don't want to use the archive_question.php page that the plugin uses.

I was wondering if there is a way to execute a query like

$query = new WP_Query( 'post_type=question&question_category=1' );

to get all questions of a particular category.