The UPSC Preliminary Examination predominantly features objective-type questions. These questions are designed to assess candidates' knowledge across a wide range of subjects, including current affairs, history, geography, and general science. The exam format includes multiple-choice questions, where candidates need to choose the correct option from the given choices. This testing style is efficient for evaluating a broad spectrum of information quickly, allowing the UPSC to filter candidates before they advance to the more comprehensive Main Examination, which contains descriptive-type questions focusing on analytical skills and critical thinking.