You can refer to the below updated syllabus for SBI Clerk 2018 Preliminary Exam:
Reasoning Ability:
In recent times, we have seen that the level of questions being asked in the examination has changed drastically. In fact, one has to get ready for all the surprises and challenges being faced. Reasoning is the subject that works on Logics and Basics. Below are the topics that you shoud be well acquaited with before you go for the exam.
Puzzles & Seating Arrangements
Direction Sense
Blood Relation
Syllogism
Order and Ranking
Coding-Decoding
Machine Input-Output
Inequalities
Data Sufficiency
Logical Reasoning (Decision Making, Passage Inference, Statement and Assumption, Conclusion, Argument)
Quantitative Aptitude:
2017 was the year when this subject evolved to be the toughest section out of all the sections being asked in the examination. Many students felt helpless during the examination while solving this section. But eventually the ones having basics cleared got the result in their favour.
Data Interpretation (Bar Graph, Line Chart, Tabular, Caselet, Radar/Web, Pie Chart, Based On Miscellaneous Topics)
Inequalities (Quadratic Equations and New Pattern)
Number Series
Approximation and Simplification
Data Sufficiency
Miscellaneous Arithmetic Problems (HCF and LCM, Profit and Loss, SI & CI, Problem on Ages, Work and Time, Speed Distance and Time, Probability, Mensuration, Permutation and Combination, Average, Ratio and Proportion, Partnership, Problems on Boats and Stream, Problems on Trains, Mixture and Allegation, Pipes and Cisterns etc.)
English Language:
Calling English Language a section would be unfair. To complete it, one needs to be patient enough to get the proper understanding. In fact this has also become one of the challenges for the student over the time. Instead of putting the syllabus, we would like to share the topics that are asked in the exams.
Reading Comprehension (Mostly Economy Based)
Cloze Test (WOrd That Does Not Fit)
Single/Double Fillers (Word that fits in both the blanks)
Error Based Statements
Vocabulary based questions
Sentence Improvement
Jumbled Paragraph (New Pattern)
Paragraph Based Questions (Paragraph Fillers, Paragraph Conclusion, Paragraph /Sentences Restatement)