How to Prepare for RRB Technician Grade 1 (Signal) 2026

Decide your grade FIRST — Grade III (ITI) and Grade I (Signal) sit different papers. Grade III is Mathematics, Reasoning, General Science and General Awareness; Grade I (Signal) has no General Science and adds Computer Basics (20) and a 35-question Basic Science & Engineering block. Mathematics, Reasoning and General Awareness are common to both, so build that base first.

The CBT is the only written stage, so it decides your selection. Aim for 75+ out of 100 by drilling Math, Reasoning, your grade's science section and basic Indian + Railway GA. The questions are 10th-pass level for Grade III, but volume is heavy at 100 questions in 90 minutes.

For both grades, the 1/3 negative marking rule decides your attempt — solve only what you're sure of. Math + Reasoning are scoring; GA needs daily Railway-themed current affairs.

Solve at least 3-5 past RRB Technician / ALP / JE papers under timed conditions. The Reasoning and Math patterns repeat heavily — series, coding, percentages, profit-loss, time-work, basic mensuration appear every year.

Read your own grade's CBT split before you build a timetable. For Grade III the paper is 100 questions in 90 minutes — Mathematics 25, Reasoning 25, General Science 40 and General Awareness 10 — so General Science is the largest single block and Mathematics plus Reasoning together match it. For Grade I (Signal) the same 100 questions are General Awareness 10, Reasoning 15, Computer Basics 20, Mathematics 20 and Basic Science and Engineering 35. In both cases a wrong answer costs one-third of a mark, and the RRB normalises across shifts, so the aim is steady accuracy above 85% rather than a high attempt count.

For the Grade III paper, General Science from NCERT Classes 9 and 10 is the deciding section: motion, force and work, sound, light and reflection, electricity and magnetism, heat, the periodic table, acids, bases and salts, metals and non-metals, carbon compounds, cell biology, life processes, nutrition and diseases, and environment. Make one-page notes per chapter with the formulas and the standard numerical types, then drill 40-question timed sets. Add the trade-specific basics your ITI syllabus covered — tools, measurements, materials, safety practices, electrical fundamentals — because the science questions are often set in a workshop context.

For the Grade I (Signal) paper, the 35-question Basic Science and Engineering block is where selection happens. Cover engineering drawing conventions, units and measurements, mass, weight and density, work, power and energy, speed and velocity, heat and temperature, basic electricity (Ohm's law, series and parallel circuits, power), levers and simple machines, occupational safety, environment education and IT literacy. The 20-question Computer Basics block is a scoring one — architecture, input and output devices, storage, operating systems, MS Office basics, networking and internet terms, and security — if you spend a week on it early.

Set a 12-week plan. Weeks 1-6: cover every syllabus chapter once, with a formula or fact sheet per chapter and a 20-question set the same day. Weeks 7-10: previous-year RRB Technician, ALP and Group D papers under the clock, one every third day, with the wrong answers logged by cause. Weeks 11-12: two full-length mocks a week at your likely shift time, daily revision of the sheets and the error log, and no new topics. Keep your ITI or diploma certificates, mark sheets, category proof and photo ID ready for document verification, and get your eyesight and colour vision tested early because the medical standard is post-specific and strictly applied.

Practise on Kamiyab: free full-length mocks for each grade built from the real 2024-2026 papers, single-topic practice sets for daily drills, and a Mistake Map that shows which topics keep going wrong.