I applied through college or university. The process took 1 week. I interviewed at Habitat for Humanity (Dallas, TX) in Feb 2015
Interview
Their process is simple. Probably due to it is an intern, not so competitive compare to a real job. One round interview with their manager, HR and two other staffs.
Interview questions [1]
Question 1
Most of questions are related to technics. They are trying to figure out if you have the skills to complete their daily jobs.