Charlie Barnett Charlie Barnett

They run the drills. They speak the language. And they make the firefighter uniforms look damn good. But do the stars of Chicago Fire (Tuesdays, 10/9c) really have what  it takes to be a firefighter?

On a recent set visit, had to find out. So we quizzed them with actual questions from the firefighters exam. So which cast members passed? And who went down in flames?

VIDEO: How does Chicago Fire create all those fake fires?

Watch the video below to find out:

Chicago Fire airs Tuesdays at 10/9c on NBC.