What is OIR Test? : The Officer Intelligence Rating, or OIR, is a test of a candidate’s intelligence. This test consists of two test booklets, each of which contains approximately 40 (sometimes 50) questions for which you will have 17 minutes to complete (will increase for 50 questions). You must attempt to answer all questions within the time limit.  Generally, applicants discuss the OIR marking scheme unnecessarily, i.e., if that many questions are accurate, OIR 1 or so. But you must avoid such discourse because you have no influence over these things, but you do have power over your performance,