The RRB Junior Engineer (JE) CBT-2 Exam 2024 is one of the most crucial stages for engineering aspirants preparing for Railway jobs. To crack this exam with confidence, it’s essential to understand which subjects carry the highest weightage and how to prioritize your preparation.
Based on the latest analysis from RRB JE CBT-2 (2024–2025 shifts), we have prepared a comprehensive subject-wise breakdown for the Mechanical branch. This data-driven insight will help you focus on the most scoring topics and design a result-oriented strategy.
The following table is based on the RRB JE CBT-2 2024–2025 exam analysis (Shift 1, Shift 2, and Re-exam) for Mechanical Engineering:
| S.No. | Subject | Shift 1 Questions | Shift 2 Questions | Re-exam Questions | Average Questions | Final Weightage (Approx.) |
|---|---|---|---|---|---|---|
| 1 | Strength of Materials (SOM) | 11 | 15 | 14 | 13.3 | 13 |
| 2 | Welding | 11 | 11 | 11 | 11 | 11 |
| 3 | I.C. Engine | 11 | 11 | 10 | 10.6 | 11 |
| 4 | Machining | 8 | 9 | 9 | 8.6 | 9 |
| 5 | Metrology | 8 | 9 | 10 | 9 | 9 |
| 6 | Industrial Engineering | 10 | 9 | 9 | 9.3 | 9 |
| 7 | Mechanics | 9 | 7 | 9 | 8.3 | 8 |
| 8 | Material Science | 10 | 6 | 6 | 7.3 | 7 |
| 9 | Grinding & Finishing | 6 | 8 | 7 | 7 | 7 |
| 10 | Hydraulic Machines | 7 | 5 | 7 | 6.3 | 6 |
| 11 | Fluid Mechanics | 4 | 5 | 4 | 4.3 | 4 |
| 12 | Heat Transfer | 3 | 4 | 3 | 3.3 | 4 |
| 13 | NC-CNC | 1 | 0 | 0 | 0.3 | 1 |
| 14 | BTD/ATD | 1 | 1 | 1 | 1 | 1 |
| Category | Approximate Weightage |
|---|---|
| Design / Production / Industrial Subjects | 74% |
| Thermal / Fluid / Heat Transfer Subjects | 26% |
✅ Key Takeaway:
Nearly three-fourths (74%) of the RRB JE CBT-2 Mechanical paper focuses on Design, Production, and Industrial topics, making them the most scoring areas to master.
Before diving deeper into preparation, let’s recall the basic exam pattern:
| Section | Subjects Covered | No. of Questions | Marks |
|---|---|---|---|
| General Awareness | Current Affairs, Railways, Science & Tech | 15 | 15 |
| Physics & Chemistry | Class 10-12 level | 15 | 15 |
| Basics of Computers & Applications | MS Office, Internet, Networking | 10 | 10 |
| Basics of Environment & Pollution Control | Environment, Acts, Sustainability | 10 | 10 |
| Technical Subjects | Mechanical / Electrical / Civil (as per branch) | 100 | 100 |
| Total | 150 | 150 |
| Rank | Subject | Average Questions | Importance Level |
|---|---|---|---|
| 1 | Strength of Materials (SOM) | 13 | ★★★★★ |
| 2 | Welding | 11 | ★★★★★ |
| 3 | I.C. Engine | 11 | ★★★★☆ |
| 4 | Machining | 9 | ★★★★☆ |
| 5 | Industrial Engineering | 9 | ★★★★☆ |
Preparation Tip: Focus deeply on SOM, Welding, and I.C. Engine, as they consistently appear across all shifts with high question counts.
Focus on topics like stress-strain, bending moment, torsion, and deflection.
Practice numericals from previous years to strengthen fundamentals.
Study arc welding, gas welding, defects, and testing methods.
Diagrams and theory-based MCQs are commonly asked.
Revise thermodynamic cycles, performance parameters, and components.
Concept-based theory questions dominate this section.
Focus on cutting tool geometry, machining processes, surface finish, and measuring instruments.
Expect direct questions on tool life, feeds, and speeds.
Learn topics like work study, time study, plant layout, and material handling.
Numericals on productivity and efficiency are frequent.
Though comparatively smaller in weightage, Fluid Mechanics, Heat Transfer, and Hydraulic Machines still contribute over one-fourth of the paper.
| Subject | Avg Questions | Key Topics |
|---|---|---|
| Fluid Mechanics | 4 | Bernoulli’s theorem, Flow measurement, Viscosity |
| Heat Transfer | 4 | Conduction, Convection, Radiation |
| Hydraulic Machines | 6 | Pumps, Turbines, Specific Speed, Efficiency |
Focus More on Technical Subjects (100 Marks): They carry the highest weightage.
Prioritize High-Yield Topics: SOM, Welding, IC Engine, and Machining should be your top focus.
Revise Formula Sheets: Especially for design and thermal subjects.
Attempt Mock Tests Regularly: Analyze your weak topics and improve speed.
Follow RRB JE Previous Year Papers: Identify recurring patterns and expected questions.
Q1. Which subject has the highest weightage in RRB JE CBT-2 (Mechanical)?
✅ Strength of Materials (SOM) holds the maximum weightage, followed by Welding and IC Engine.
Q2. What percentage of RRB JE CBT-2 Mechanical is from Design & Production topics?
Approximately 74% of the questions are from Design, Production, and Industrial Engineering subjects.
Q3. Are theory questions more common or numericals?
RRB JE CBT-2 mainly includes concept-based numericals along with theory-type MCQs, especially in SOM, Thermodynamics, and Welding.
Q4. How should I divide my preparation time?
Allocate around 70–75% of your study hours to Design/Production topics and 25–30% to Thermal & Fluid subjects.
The RRB JE CBT-2 2024 subject-wise weightage clearly shows that success in this exam depends on strong command over Design and Production Engineering. Focus more on SOM, Welding, and IC Engine, revise thoroughly, and practice multiple mock tests to improve accuracy and time management.
If you’re serious about cracking the upcoming RRB JE 2025 exam, start your preparation today with structured guidance, concept-based videos, and mock tests from trusted sources.
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