RRB ALP CBT 2 Machinist Trade Syllabus 2026, Complete Topic Wise Syllabus & Exam Pattern

Candidates who have selected Machinist Trade for RRB Assistant Loco Pilot (ALP) CBT 2 Part B should prepare according to the latest ITI Machinist syllabus. The examination tests candidates on machine tools, workshop technology, measuring instruments, engineering drawing and manufacturing processes. Check the complete topic-wise syllabus and exam pattern below.

RRB ALP CBT 2 Machinist Exam Pattern 2026

RRB ALP CBT 2 Machinist Trade Syllabus 2026

1. Workshop Safety

• Industrial Safety Guidelines & Accident Prevention
• First Aid Procedures & Emergency Mock Drills
• Fire Safety (Classes of Fire & Extinguishers)
• Workshop Precautions & 5S Housekeeping Practices
• Personal Protective Equipment (PPE) Selection

2. Engineering Drawing

• Lines, Lettering, and Standard Symbols
• Orthographic Projection (First Angle & Third Angle)
• Isometric Projections and Free Hand Sketching
• Dimensioning Systems & Layout Practices
• Limits, Tolerances, and Fits Symbols
• Machine Components Drawings & Blueprint Reading

3. Measuring Instruments

• Linear Measurements: Steel Rule, Try Square, Calipers
• Precision Instruments: Vernier Caliper, Outside/Inside Micrometers
• Dial Indicators & Dial Test Indicators (DTI)
• Height Gauges and Depth Gauges (Vernier/Digital)
• Gauges: Feeler Gauge, Radius Gauge, Screw Pitch Gauge, Plug Gauges

4. Lathe Machine & Operations

• Parts, Specifications, and Classification of Centre Lathe
• Lathe Accessories & Work Holding Devices (Chucks, Face Plate, Mandrel)
• Operations: Facing, Plain Turning, Step Turning, Shoulder Turning
• Taper Turning Methods & Simple Mathematical Calculations
• Thread Cutting (V-Thread, Square, Acme, Metric Threads)
• Knurling, Drilling, Boring, and Reaming on Lathe

5. Drilling & Boring Machines

• Types of Drilling Machines (Bench, Pillar, Radial Drilling)
• Drill Bit Geometry, Cutting Angles, and Nomenclature
• Operations: Counter Boring, Counter Sinking, and Spot Facing
• Reaming Operations (Hand and Machine Reamers)
• Tapping (Internal Threading using Taps)

6. Milling Machine & Operations

• Classification and Principles of Horizontal/Vertical Milling Machines
• Milling Cutters Types, Slitting Saws, and End Mills
• Operations: Face Milling, Plain Milling, Angular Milling, Gang Milling
• Indexing Mechanisms (Direct, Simple, and Differential Indexing)
• Spur Gear Cutting Basics on Milling Machine

7. Grinding Machine, Shaper & Slotter

• Surface Grinding and Cylindrical Grinding Machine Types
• Grinding Wheel Specification, Standard Marking Code
• Defects: Wheel Glazing, Loading, Dressing, and Truing Operations
• Basic Operations of Shaper and Slotting Machines

8. Cutting Tools & Tool Metallurgy

• Single Point Cutting Tool Geometry (Clearance, Rake, and Lip Angles)
• Multi-point Cutting Tools Types & Applications
• Tool Materials (High-Speed Steel (HSS), Carbides, Ceramics, Diamond)
• Cutting Speed, Feed, and Depth of Cut Standard Formulas
• Coolants and Lubricants (Selection and Types)

9. CNC Basics & Modern Machining

• Introduction to Computer Numerical Control (CNC) Machines (VMC, HMC)
• Part Programming Fundamentals (G-Codes and M-Codes)
• Machine Coordinate Axes Systems (X, Y, and Z Axes)
• Advantages of CNC over Conventional Tool Machines

10. Engineering Materials & Heat Treatment

• Ferrous Metals (Pig Iron, Cast Iron, Carbon Steels)
• Non-Ferrous Metals & Alloys (Copper, Aluminium, Brass, Bronze)
• Physical and Mechanical Properties of Metals
• Heat Treatment Processes: Annealing, Normalizing, Hardening, Tempering

11. Production Technology & Basic Processes

• Overview of Core Manufacturing Processes
• Casting and Forging Operations Fundamentals
• Welding Basics (Arc Welding & Gas Welding Equipment)
• Sheet Metal Layout Tools and Common Joint Works

12. Maintenance & Quality Inspection

• Preventive, Breakdown, and Predictive Maintenance Schedules
• Lubrication Methods & Types of Lubricants Used
• Troubleshooting Machine Tools & Alignment Tests
• Inspection Techniques & Geometric Dimensioning Tolerances

Preparation Tips for Machinist Trade

• Master Machine Operations: Focus deeply on Lathe, Milling, and Grinding principles. A majority of trade-specific questions are selected from these domains.
• Practice Numerical Formulas: Revise formulas for Cutting Speed, Feed rate, and Indexing turns regularly.
• Understand Least Counts: Memorize the least counts and error adjustments for Vernier Calipers and Micrometers.
• Solve Technical PYQs: Go through previous year RRB ALP CBT 2 Machinist question papers to grasp the MCQ structure.

RRB ALP CBT 2 Machinist Trade FAQ

Q1. How many questions are asked in RRB ALP CBT 2 Machinist Trade?
A. A total of 75 objective-type multiple-choice questions (MCQs) are asked in Part B.

Q2. Is Part B qualifying in nature?
A. Yes, Part B is strictly qualifying in nature. Candidates must clear it to make their Part A score count.

Q3. What are the minimum qualifying marks for Machinist Trade?
A. Candidates across all categories must score at least 35% marks, which equals 26.25 marks out of 75.

Q4. Is there negative marking in the RRB ALP trade paper?
A. Yes, a negative marking rule of 1/3rd mark applies for every incorrect response.

Q5. What are the key focus topics in the Machinist syllabus?
A. Lathe Operations, Milling & Indexing, Grinding Wheel Dressing, CNC Basics, Measuring Gauges, and Cutting Tool Metallurgy.