RRB ALP 2026: Assistant Loco Pilot — Complete Guide to India’s Most Technical Railway Exam

The Railway Recruitment Board Assistant Loco Pilot (RRB ALP) examination is one of the most technically demanding railway recruitment processes. Unlike NTPC or Group D which test general knowledge and basic aptitude, ALP requires specific technical knowledge related to the trade you have studied — whether that is Electrician, Fitter, Machinist, Welder, Electronics Mechanic, or any other relevant ITI trade.

An Assistant Loco Pilot works in the locomotive cab assisting the Loco Pilot (train driver) — a role that requires technical competence, alertness, and the ability to handle emergency situations. The selection process reflects this — it is more demanding than other RRB exams.

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RRB ALP 2026 — Overview

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Eligible Trades for ALP

The ITI trade you have studied determines whether you are eligible for ALP. Eligible trades include:

Common eligible trades:

• Electrician
• Electronics Mechanic
• Fitter
• Machinist
• Millwright Maintenance Mechanic
• Mechanic Motor Vehicle
• Mechanic Radio & TV
• Instrument Mechanic
• Mechanic Diesel
• Heat Engine
• Tractor Mechanic
• Turners
• Wireman
• Armature and Coil Winder
• Refrigeration and Air Conditioning Mechanic
• Welder (Gas & Electric)

Diploma in Engineering (eligible without ITI): Candidates with a 3-year Diploma in Engineering from a recognised polytechnic are also eligible. The Diploma must be in a relevant engineering stream.

Always verify your specific trade eligibility from the official ALP notification — the list of eligible trades can be revised between recruitment cycles.

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RRB ALP 2026 Exam Pattern

Stage 1 — CBT 1 (First Computer Based Test)

• Negative marking: 1/3 per wrong answer
• Qualifying in nature — shortlists candidates for CBT 2
• Normalisation applied across multiple shifts

Stage 2 — CBT 2 (Second Computer Based Test)

CBT 2 has two parts conducted together:

Part A (General Subjects):

Part B (Trade Syllabus — Qualifying):

• Part A marks count for merit
• Part B is qualifying — 35% minimum required to proceed, marks not counted in merit
• Negative marking: 1/3 per wrong answer in both parts

Stage 3 — Computer Based Aptitude Test (CBAT)

A unique stage specific to ALP — tests the psychological and cognitive aptitude required for the role of a locomotive pilot.

Tests included:

• Memory (short-term memory, spatial memory)
• Following directions
• Concentration
• Perceptual speed
• Information ordering

Key points about CBAT:

• Minimum qualifying score required in each test battery
• No negative marking in CBAT
• Candidates who fail CBAT can still be considered for Technician Grade III posts (if they qualify CBT 2 Part B)
• Practice cognitive aptitude tests before this stage — they are different from standard exam preparation

Stage 4 — Document Verification + Medical Examination

ALP has strict medical standards — this is expected for a role that involves operating locomotives. Vision standards, hearing, and general physical fitness are examined according to railway medical classification for operational staff.

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Complete Syllabus

Mathematics (CBT 1 + CBT 2 Part A)

• Number systems
• BODMAS
• Decimals, fractions
• LCM and HCF
• Ratio and proportion
• Percentages
• Simple and compound interest
• Profit and loss, discount
• Algebra — basic identities, linear equations
• Geometry — triangles, circles, quadrilaterals
• Mensuration — area, perimeter, volume
• Trigonometry — basic ratios, heights and distances
• Statistics — mean, median, mode, probability basics

General Intelligence & Reasoning

• Analogies
• Alphabetical and number series
• Coding and decoding
• Mathematical operations
• Relationships — blood relations
• Syllogisms
• Venn diagrams
• Conclusions and decision making
• Similarities and differences
• Analytical reasoning
• Directions and distances
• Classification

General Science

Physics:

• Units and measurements
• Motion and Newton’s laws
• Work, energy, and power
• Electricity — Ohm’s law, circuits, power
• Magnetism
• Sound — properties, echo
• Light — reflection, refraction
• Heat — temperature, thermometry

Chemistry:

• Matter — states and changes
• Atomic structure basics
• Chemical bonding basics
• Acids, bases, salts
• Metals and non-metals
• Carbon and its compounds
• Oxidation and reduction

Biology:

• Cell structure
• Life processes — photosynthesis, respiration, digestion
• Human body — organ systems
• Diseases — causes and prevention

Basic Science & Engineering (CBT 2 Part A — 75 marks)

This section is unique to ALP and covers applied engineering concepts:

• Engineering Drawing — basic principles, views, projections
• Units — SI units, conversion
• Mass, weight, density
• Work, power, energy
• Speed, velocity, acceleration
• Heat and temperature
• Basic electricity — Ohm’s law, series and parallel circuits, power calculation
• Levers and simple machines
• Occupational safety and health — basic workplace safety
• Environment education — pollution, conservation
• IT basics — computer fundamentals, MS Office basics

CBT 2 Part B — Trade Syllabus

Questions are based on the syllabus of your specific ITI trade. For example:

• Electrician trade: Electrical circuits, wiring, motors, transformers, safety
• Fitter trade: Fitting operations, measuring instruments, drilling, grinding
• Electronics Mechanic: Electronic components, circuits, soldering, testing

Study from your ITI trade theory books — the same syllabus covered in your ITI course is what is tested here.

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Eligibility

Educational Qualification:

• Class 10 pass AND ITI in a relevant trade (NCVT or SCVT), OR
• Class 10 pass AND Act Apprenticeship in relevant trade, OR
• Diploma in Engineering in relevant stream (3-year polytechnic diploma)

Age Limit:

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Preparation Strategy

CBT 1 — Build Your Foundation

CBT 1 is similar to RRB NTPC and Group D in pattern but at a higher level — 75 questions in 60 minutes. Mathematics and General Science together carry 40 marks. Spend the most time here.

For General Science in ALP: NCERTs for Class 9 and 10 are the starting point, but also cover basic engineering science concepts — electricity, simple machines, and measurement units — which feature more in ALP than in other Railway exams.

CBT 2 Part A — Engineering Science Focus

Basic Science & Engineering (75 marks) is the section most unique to ALP and where most candidates underperform. Study engineering drawing basics, applied physics (Ohm’s law, levers, simple machines), and unit conversions specifically. These are not tested in any other RRB exam — ALP preparation resources specifically cover this.

CBT 2 Part B — Your Trade Advantage

This is where your ITI background becomes a strength. Revisit your ITI trade theory books systematically. The questions are from the same syllabus you studied — the advantage is yours compared to candidates who are less familiar with the trade content.

Minimum qualifying marks for Part B is 35% — a low bar. Aim higher (60%+) to ensure you are comfortable.

CBAT — Cognitive Aptitude Preparation

The CBAT is unlike anything else in the exam preparation world. Practice:

• Memory exercises — remembering sequences, spatial patterns
• Concentration drills — sustained attention tasks
• Following multi-step directions
• Speed and accuracy tasks

Several free online cognitive aptitude practice platforms offer tests similar to CBAT. Spend 30 minutes daily on cognitive practice for at least 4 weeks before the CBAT.

RRB ALP 2026 — Frequently Asked Questions

What happens if I fail the CBAT but clear CBT 2?

You can still be considered for Technician Grade III posts instead of Assistant Loco Pilot, provided you’ve qualified CBT 2 Part B (the trade syllabus). ALP specifically requires clearing CBAT; Technician Grade III does not.

Is Part B (Trade Syllabus) really not counted in the final merit?

Correct — Part B in CBT 2 is qualifying only, with a 35% minimum requirement. Your final merit and rank are based entirely on Part A marks (100 marks) from CBT 2.

Can a Diploma holder skip the ITI trade requirement for ALP?

Yes. A 3-year Diploma in Engineering in a relevant stream is accepted as an alternative to ITI + relevant trade for ALP eligibility.

How is CBAT different from a normal reasoning test?

CBAT tests psychological and cognitive traits — memory, concentration, perceptual speed, and ability to follow directions — rather than knowledge-based reasoning like analogies or coding-decoding. It has no negative marking and requires a different kind of practice (cognitive aptitude drills, not subject revision).

Is the eligible trade list the same every recruitment cycle?

Not necessarily. The list of ITI trades eligible for ALP can be revised between cycles, so always check the specific year’s official notification rather than relying on a previous cycle’s list.

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Official Links

• Indian Railways: indianrailways.gov.in
• ALP notifications: Published on all regional RRB websites simultaneously

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Published by ExamzPrep — free government exam preparation for serious aspirants. Last updated June 2026.