SBI Clerk Prelims Exam Pattern The Preliminary Examination consisting of Objective Tests for 100 marks is conducted online. This test is of 1-hour duration consisting of 3 Sections (with separate timings for each section) as follows: SBI Clerk Main Examination consists of Objective Tests for 200 marks and. The given table shows the expected pattern for SBI Clerk Mains Examination. Note: There will be negative marks of 1/4th in both prelims as well as mains exam. Also, there is a sectional timing in both the phase of the SBI Clerk Exam. The merit list will be framed as per the mains stage marks but it is important to go through the specified opted language.