Master the Bharat Sanchar Nigam Limited (BSNL) Junior Telecom Officer (JTO) Computer Based Test (CBT) with our detailed 2026 Syllabus and Exam Pattern. This guide provides subject-wise topics essential for the exam, along with insights into the exam format, marking scheme, and question distribution to maximize your preparation.
The Bharat Sanchar Nigam Limited (BSNL) is seeking talented individuals for 100 Junior Telecom Officer (JTO) positions through a rigorous Computer Based Test (CBT). A thorough understanding of the latest BSNL JTO syllabus and exam pattern is crucial for effective preparation. This article offers a detailed breakdown of the BSNL Junior Telecom Officer syllabus, covering specific topics for each section, the exam structure, and the official marking scheme.
BSNL JTO Syllabus and Exam Pattern 2026
The BSNL JTO Computer Based Test (CBT) is structured around three core sections: Engineering Stream – I, Engineering Stream – II, and General Ability. To advance in the recruitment process, candidates must achieve the minimum qualifying marks in each individual section.
| Particulars | Details |
| Organisation | Bharat Sanchar Nigam Limited (BSNL) |
| Post | Junior Telecom Officer (JTO) |
| Vacancies | 100 |
| Duration of Exam | 3 hours |
| Mode of Exam | Online |
| No. of Questions | 120 |
| Marks | 480 |
| Negative Marking | -1 |
| Selection Process | Computer Based Test (CBT) |
BSNL Junior Telecom Officer Exam Pattern 2026
Duration: The BSNL JTO CBT is scheduled for 3 hours.
Marking Scheme: Details on the marking scheme will be elaborated upon below.
- Correct Answer: +4 marks.
- Wrong Answer: -1 mark
| Section | Particulars | Marks | Number of Questions | Duration |
| Section I | Engineering Stream – I | 200 Marks | 50 Questions | 3 Hours (Total Exam) |
| Section II | Engineering Stream – II | 200 Marks | 50 Questions | |
| Section III | General Ability Test | 80 Marks | 20 Questions | |
| Total | 480 Marks | 120 Questions | 3 Hours | |
Minimum Qualifying Marks
| Category | Minimum Marks (per section) | Minimum Overall (Combined) |
| Unreserved & OBC (CL) | 40% | 50% |
| SC, ST, OBC (NCL), PwBD & EWS | 35% | 45% |
Important Note: Candidates must satisfy both the sectional and overall minimum qualifying marks to be eligible for the final merit list.
BSNL JTO Syllabus 2026
Dive into the detailed topic-wise syllabus for all three sections of the BSNL JTO Exam outlined below.
| Section | Topics |
| Section I – Engineering Stream | Materials and Components (conductors, semiconductors, magnetic materials, passive components, etc.) |
| Physical Electronics, Electron Devices & ICs (diodes, BJTs, FETs, SCRs, CMOS, opto-electronics) | |
| Network Theory (network theorems, transient/steady state, transmission lines) | |
| Electromagnetic Theory (waveguides, transmission lines, antennas) | |
| Electronic Measurements & Instrumentation (errors, measuring instruments, transducers, telemetry) | |
| Power Electronics (thyristors, converters, inverters, SMPS, PWM) | |
| Section II – Engineering Stream | Analog Electronic Circuits (amplifiers, oscillators, OP-AMP, power supplies) |
| Digital Electronic Circuits (Boolean algebra, logic gates, flip-flops, counters, memories, A/D & D/A) | |
| Control Systems (feedback, stability, root locus, frequency response, controllers) | |
| Communication Systems (modulation, multiplexing, optical fiber, satellite communication) | |
| Microwave Engineering (waveguides, microwave devices, antennas, MASER/laser, propagation) | |
| Computer Engineering (data representation, programming, architecture, memory, I/O systems) | |
| Microprocessors (architecture, instruction set, interfacing, telecom applications) | |
| Section III – General Ability Test | English comprehension, grammar and basic communication |
| Current affairs and general knowledge | |
| Everyday science and observation | |
| Indian history and geography | |
| Telecom-related awareness and basic scientific events |
FAQs
For how many marks is the BSNL JTO exam conducted?
The BSNL JTO written examination will consist of 120 questions, totaling 480 marks.
What is the selection process for BSNL JTO 2026?
Selection of candidates will be based on their performance in the Computer Based Test (CBT).
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