It's never a good thing to lie on your CV. I did this once, & I was called for an interview with British Rail. I had told them I was an experienced signalman and had operated signal boxes all around the world, and had got the medals to prove it.
Excited by my credentials, they offered me the job on the spot. I started work the next day at Crewe. An hour later 23 trains had piled in to each other on Platform 1. Suffice to say I was sacked (although fair play to the union, they went on a nation wide 48hr stoppage over a Bank Holiday weekend in protest). I'm currently working as an air traffic controller (well nearly, it's my first day tomorrow!!)