RRB Lab Technician study guide
RRB Lab Technician · Work through your exam, one topic at a time.
The RRB Lab Technician recruitment exam is a computer-based selection test used by Indian Railways to shortlist candidates for laboratory technician and lab assistant posts in railway hospitals and health units. It suits candidates with a science background - typically 12th standard with Physics, Chemistry and Biology, or a diploma or degree in medical laboratory technology - who want a stable technical role supporting diagnostic testing, sample collection and record-keeping in a clinical setting. The RRB Lab Technician study guide has 7 sections and about 2,223 words.
01Mathematics
Mathematics in the RRB Lab Technician CBT tests numerical ability under time pressure: number system, simplification, HCF–LCM, percentage, ratio and proportion, average, interest, time–speed–distance, time and work, mensuration and data interpretation. Questions are short but calculation-heavy, so getting the right answer in one or two steps matters more than a long derivation.
327 words, about 2 min02General Intelligence and Reasoning
General Intelligence and Reasoning tests logical speed rather than mathematics. Recurring areas are analogy, classification (odd one out), number and letter series, coding–decoding, blood relations, direction sense, syllogism, seating arrangement, ranking, statement–conclusion, and non-verbal items such as mirror image, water image, paper folding and embedded figures.
309 words, about 2 min03General Awareness
General Awareness for RRB Lab Technician is broad but shallow: Indian polity and the Constitution, modern Indian history and the freedom movement, geography, economy, sports, awards, books, and current affairs, with visible weighting towards Indian Railways. Expect factual one-liners rather than analysis.
309 words, about 2 min04General Science
General Science covers physics, chemistry and biology at Class 10 level, applied to everyday and laboratory contexts. Expect units and measurement, motion and force, light, electricity, acids–bases–salts, atomic structure, human physiology, nutrition and common diseases.
324 words, about 2 min05Basic Computer Knowledge
Basic Computer Knowledge checks everyday computer literacy: hardware and software, memory and storage, operating-system basics, MS Word, Excel and PowerPoint, internet and email, networking, and safety and security. Questions are definitional and shortcut-based, so recall is enough.
331 words, about 2 min06Laboratory Techniques and Procedures
Laboratory Techniques and Procedures tests practical bench competence: glassware and calibration, accurate liquid handling, sterilization and disinfection, separation techniques, instrumentation, biosafety and biomedical waste management. Answers should follow standard operating procedure, never improvisation.
326 words, about 2 min07Medical Laboratory Science (Clinical Pathology, Hematology, Biochemistry, Microbiology)
Medical Laboratory Science is the largest technical domain: clinical pathology, haematology, biochemistry and microbiology. Expect specimen collection and anticoagulants, the principle of common tests, reference ranges, quality control and interpretation of abnormal results.
297 words, about 1 min