ISRO Scientist/Engineer 2025 Exam – Solutions & Detailed Question Paper Analysis by ACE Engineering Academy

The ISRO Scientist/Engineer 2025 Exam has been successfully conducted for Civil (CE), Computer Science (CS), Electronics (EC), Electrical (EE), and Mechanical (ME) branches. Thousands of aspiring engineers appeared for this highly competitive exam to secure their place in one of India’s most prestigious organizations – Indian Space Research Organisation (ISRO).
To help students analyze their performance and understand the paper trends, ACE Engineering Academy and ACE Online have come up with a Solutions & detailed question paper analysis for each branch. These analyses are designed by our expert faculty team who have years of experience in guiding students for ISRO, GATE, and ESE exams.
What’s Covered in the Analysis
- Branch-wise Question Paper Discussion (CE, CS, EC, EE & ME)
- Difficulty Level Comparison (Easy | Moderate | Tough)
- Expected Cut-off Predictions
- Conceptual Breakdown of Key Questions
- Expert Tips for Upcoming ISRO & GATE Exams
ISRO – 2025 (CEPO) ‘SC’ (Electrical): Subject-Wise Weightage Breakdown
Here’s a closer look at the weightage distribution
| Subject | Weightage (Marks) |
| Electrical Machines | 27 |
| Power Systems | 25 |
| Power Electronics | 13 |
| Aptitude | 15 |
| Electrical Measurements | 3 |
| Electric Circuits | 4 |
| Control Systems | 4 |
| Electromagnetic Fields | 2 |
| Engineering Mathematics | 2 |
| Total Marks | 95 |
ISRO – 2025 (CEPO) ‘SC’ (Electronics): Subject-Wise Weightage Breakdown
Here’s a closer look at the weightage distribution
| Subject | No. of Questions |
| Network Theory | 7 |
| Signals & Systems | 9 |
| Analog Circuits | 11 |
| Digital Circuits & VHDL | 8 + 1 |
| Control Systems | 10 |
| Electronic Devices & VLSI | 6 |
| Electromagnetic Theory | 7 |
| Communication Systems | 10 |
| Electronic Measurements & Instrumentation | 3 |
| Power Electronics | 5 |
| Mathematics | 3 |
| Aptitude | 15 |
| Total Questions | 95 |
ISRO–2025 (CEPO) ‘SC’ (Computer Science): Subject-Wise Weightage Breakdown
Here’s a closer look at the weightage distribution
| Subject | No. of Questions |
| E-Maths | 5 |
| D-Maths | 5 |
| Machine Learning | 3 |
| Artificial Intelligence | 5 |
| Cloud Computing | 2 |
| Big Data | 7 |
| DBMS | 6 |
| Digital Logic | 7 |
| Data Structures | 1 |
| Compiler Design | 3 |
| Programming Language | 2 |
| Theory Of Computing | 5 |
| Algorithms | 4 |
| Computer Networks | 15 |
| Operating Systems | 8 |
| Software Engineering | 7 |
| Total Questions | 95 |
ISRO–2025 (CEPO) ‘SC’ (Civil Engineering): Subject-Wise Weightage Breakdown
Here’s a closer look at the weightage distribution
| Subject | No. of Questions |
| Building Materials | 10 |
| Structural Analysis + Design of Steel Structures | 9 |
| Construction Management + Estimation Costing | 7 |
| Environmental Engineering | 11 |
| Fluid Mechanics & Hydraulic Machines + Open Channel Flow | 6 + 2 |
| Surveying | 6 |
| Geotechnical Engineering | 4 |
| Transportation + Railways | 5 + 2 |
| Hydrology + Irrigation Engineering | 3 |
| Engineering Mechanics | 2 |
| Reinforced Cement Concrete | 4 |
| Solid Mechanics | 4 |
| Mathematics | 5 |
| Aptitude | 15 |
| Total Questions | 95 |
ISRO – 2025 (CEPO) ‘SC’ (Mechanical Engineering): Subject-Wise Weightage Breakdown
Here’s a closer look at the weightage distribution
| Subject | No. of Questions |
| Thermal Engineering | 9 |
| Heat Transfer | 9 |
| Fluid Mechanics & Hydraulic Machinery | 14 |
| Strength of Materials | 7 |
| Theory of Machines | 14 |
| Machine Design | 4 |
| Industrial Engineering & Operation Research | 3 |
| Production Technology | 14 |
| Material Science | 5 |
| Mechatronics | 1 |
| Engineering Mechanics | 3 |
| Mathematics | 1 |
| Aptitude | 14 |
| Total Questions | 95 |
Each video provides a comprehensive understanding of how questions were framed, the concepts tested, and the best strategies to approach similar problems in the future.
If you’ve appeared for the exam or are planning to prepare for upcoming ISRO or GATE exams, this detailed analysis will be extremely beneficial for your preparation journey.
Watch the Complete Video Analysis for Your Branch Here
Electronics & Communication Engineering
🔗https://youtube.com/live/YS-Hs8W4YcQ?feature=share
Electrical Engineering
🔗 https://youtube.com/live/CiEv8SLIugs?feature=share
Mechanical Engineering
🔗 https://youtube.com/live/RZQlAhfGnXs
Civil Engineering
🔗https://youtube.com/live/hEnOI-Y9hhs?feature=share
Computer Science Engineering
🔗 https://youtube.com/live/RZQlAhfGnXs?feature=share
Stay tuned to ACE Engineering Academy & ACE Online YouTube channels for more updates, expert guidance, and upcoming live sessions on ISRO 2025 and other competitive exams.








