BSNL Junior Telecom Officer Syllabus
BSNL Junior Telecom Officer Syllabus


BSNL Junior Telecom Officers (JTO) Exams Syllabus. On this page, one can find complete information about the BSNL JTO Exam pattern, syllabus, cutoffs, and answer keys.

Bharat Sanchar Nigam Limited (BSNL) conducts an Open Competitive Examination for the Recruitment of Junior Telecom Officers (JTO) in various offices of the BSNL across India.

Exam Pattern

BSNL Junior Telecom Officers (JTO) Exam Pattern

The mode of selection is through Open Competitive Examination. The Question Paper will be a fully objective type with multiple options as answers to each question. The examination will be of three hours duration with one Question Paper containing the following three sections:-

Section-I :

  • Name of Paper: Engineering stream
  • No. of Question: 50

Section-II :

  • Name of Paper: Engineering stream
  • No. of Question: 50

Section-III :

  • Name of Paper: General Ability Test
  • No. of Question: 20

Negative Marking: There will be negative markings. 0.25 marks will be deducted for each wrong answer. The standard of paper in engineering subjects will be that of the Engineering Examination of an Indian University.


Syllabus For Junior Telecom Officers (JTO) Exams: Bharat Sanchar Nigam Limited (BSNL) Junior Telecom Officers (JTO) Exam is the most popular exam among all exams conducted by BSNL. Now let’s have a look at the detailed syllabus of the JTO Exam….

Section-I :

  • Materials and components : Structure and properties of Electronic Engineering materials, Conductors, Semiconductors and Insulators, Magnetic, Ferroelectric, Piezoelectric, Ceramic, Optical and Superconducting materials. Passive components and characteristics, Resistors, Capacitors and Inductors; Ferrites, Quartz crystal, Ceramic resonators, Electromagnetic and Electromechanical components.
  • Physical Electronics, Electronic Devices and ICs : Electrons and holes in semiconductors, Carrier Statistics, Mechanics of current flow in a semi-conductor, Hall effect; Junction theory; Different types of diodes and their characteristics; Bipolar Junction transistor; Field effect transistors; Power switching devices like SCRs, CTOs, power MOSFETs; Basics of ICs-bipolar, MOS and CMOS types; Basics of Opto Electronics.
  • Network theory : Network analysis techniques: Network theorem, transcient and steady state sinusoidal response, Transmission criteria: delay and rise time Elmore’s and other definition, effect of cascading. Elements of network synthesis.
  • Electromagnetic Theory : Transmission lines: basic theory, standing waves, matching applications, micro strip lines; Basics of wave guides and resonators; Elements of antenna theory.
  • Electronic Measurements and instrumentation : Basic concepts, standards and error analysis; Measurements of basic electrical quantities and parameters; Electronic measuring instruments and their principles of working: analog and digital, comparison, characteristics, applications. Transducers; Electronic measurements of non-electrical quantities like temperature, pressure, humidity etc. Basics of telemetry for industrial use.
  • Power Electronics : Power Semiconductor devices, Thyristor, Power transistor, MOSFETs, Characteristics and operation. AC to DC convertors; 1-Phase and 3-phase DC to DC Convertors.
  • AC regulators. Thyristor controlled reactors, switched capacitor networks. Inverters: Single-phase and 3-phase. Pulse width modulation. Sinusoidal modulation with uniform sampling. Switched mode power supplies.

Section-II :

  • Analog Electronic Circuits : Transistor biasing and stabilization, Small Signal analysis. Power amplifiers. Frequency response, Wide band techniques, Feedback amplifiers. Tuned amplifiers. Oscillators. Rectifiers and power supplies. Operational Amplifier, other linear integrated circuits and applications. Pulse shaping circuits and waveform generators.
  • Digital Electronic Circuits: Transistor as a switching element; Boolean algebra, simplification of Boolean functions, Karnaugh Map and applications; IC Logic gates and their characteristics; IC logic families: DTL, TTL, ECL, NMOS, PMOS, and CMOS gates, and their comparison; Combinational logic circuits; Half adder, full adder; Digital Comparator; Multiplexer Demultiplexer; ROM and their applications. Flip-flops, R-S, J-K, D, and T flip-flops; Different types of counters and registers; waveform generators. A/D and D/A convertors. Semiconductor memories.
  • Control Systems: Transient and steady-state response of control systems; Effect of feedback on stability and sensitivity, Root locus techniques; Frequency response analysis. Concepts of gain and phase margins; Constant-M and Constant-N Nichol’s Chart; Approximation of transient response from Constant-N Nichol’s Chart; Approximation of transient response from closed loop frequency response; Design of Control Systems, Compensators; Industrial controllers.
  • Communication systems: Basic information theory: Modulation and detection in analog and digital systems; Sampling and data reconstruction. Quantization & Coding; Time division and frequency division multiplexing; Equalisation; Optical Communication: in free space & fiber optic; Propagation of signals at HF, VHF, UHF, and microwave frequency; Satellite communication.
  • Microwave Engineering: Microwave Tubes and solid state devices, Microwave generation and amplifiers, Waveguides and other Microwave Components and Circuits, Microstrip circuits, Microwave antennas, Microwave Measurements, MASERS LASERS; Microwave Propogation. Microwave Communication Systems terrestrial and satellite-based.
  • Computer Engineering: Number Systems; Data representation; Programming; Elements of a high-level programming language PASCAL/C; use of basic data structures; Fundamentals of computer architecture processor design; Control unit design; Memory organization. I/O System Organization. Personal computers and their typical uses.
  • Microprocessors: Microprocessor architecture – Instruction set and simple assembly language programming. Interfacing for memory and I/O. Applications of Microprocessors in Telecommunications and power Systems.

General ability test: The candidate’s comprehension and understanding of General English shall be tested through simple exercises. Questions on knowledge of current events and of such matter of everyday observation and experience in their scientific aspects as may be expected of an educated person. Questions will also be included on events and developments in Telecommunications, History of India and Geography. These will be of a nature, which can be answered without special study by an educated person.

Eligibility Criteria: Bachelor of Engineering/ Bachelor of Technology or equivalent Engineering degree in any of the following disciplines from a recognized engineering college/university :

  1. Telecommunication
  2. Electronics
  3. Radio
  4. Computer
  5. Electrical
  6. Information Technology
  7. Instrumentation

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