Most recruiters or HR professionals involved in hiring for a company will have access to all applicant information across open positions. If you apply to multiple positions, you risk the perception that you are unclear about the type of work you are best suited for, or are most interested in. Consider pursuing the position within a company that is the best fit and applying for just that one. A more focused approach to your job search is usually the best for both minimizing your time spent, and improving potential outcomes.
Refer to the Career Center's Conducting a Job Search content for additional information on how to conduct an effective search.