Going to be starting a 135 job in AK soon and heard the FAA ramp checks pretty regularly in the area. Going to be flying cargo and people around in a C-206. I've never been ramp checked before so I'm just wondering, other than wanting to see license ID and medical what is usually asked? Do they quiz you on the regs? How long do they last? What are the most common things pilots get in trouble for during these?

Thanks.