Should I get a masters or second bachelors in mechanical engineering?

<p>I am about to graduate from UCLA as applied mathematics and thinking of going back to school for mechanical engineering. I've been searching online if Master's in engineering is a better option than getting a second bachelors in it . Has anyone had any experience in this? Would getting a masters without a bachelors in engineering affect my chances for employment? Are there limited internship opportunities for grad students??</p>