BSNL JE TTA Exam Syllabus

BSNL Junior Engineer TTA Exam Syllabus 

Paper I – General Ability Test – 20 marks – 20 questions

General English, Current Events, General Knowledge and Every day observation and experiences.

Paper II – Basic Engineering – 90 marks – 90 questions

Applied Mathematics – Co-ordinate Geometry, Vector Algebra, Matrix and Determinant, Differential Calculus, Integral Calculus, Differential equation of second order, Fourier series, Laplace Transform, Complex Number, Partial Differentiation.

Applied Physics – Measurement-Units and Dimension, Waves, Acoustics, Ultrasonic light, Laser and its Application, Atomic Structure and Energy Levels.

Basic Electricity – Electrostatics, Coulomb’s Law, Electric Field, Gauss’s Theorem, Concept of Potential Difference, Concept of Capacitance and Capacitors; Ohm’s Law, Power and Energy, Kirchoff”s Voltage, Current laws and their applications in simple DC circuits, Basic Magnetism; Electro Magnetism, Electromagnetic Induction, Concept of Alternating voltage & Current, Cells and Batteries, Voltage and Current Sources; Thevenin’s Theorem, Norton’s Theorem and their applications.

Electronics Devices and Circuits – Classification of materials into conductor, Semi Conductor, Insulator etc.; Electrical properties, magnetic materials, various types of relays, switches and connectors, Conventional representation of electrical and electronic circuits elements. Active and passive components; semi conductor physics, Semiconductor Diode, Bipolar transistor & their circuits, Transistor biasing stabilization of operating point, Sing stage transistor amplifier, field effect transistor, Mosfet circuits applications.

Multistage Transistor Amplifier, Transistor Audio Power Amplifiers; Feedback in Amplifier, Sinusoidal Oscillators, Tuned Voltage Amplifiers, Opto Electronics Devices and their applications, Operational Amplifier, Wave shaping and switching circuits.

Block diagram of I.C Timer (such as 555) and its working; Motivation Circuits, Time Base circuits, Thyristory and UJT, Regulated Power supply.

Digital Techniques – Applications and advantages of digital systems, number system (Binary and hexadecimal) Logic Gates, Logic Simplication, Codes Panty, Arithmetic Circuits, Decoders, Display Devices and Associated Circuits, Multiplexers and Di-multiplexers, Latches and Flip Flops, Counters, Shift Registers, Memories, A/D and D/A converters.

Part III – Specialization – 90 marks

1. Electrical

Three phases vs. single-phase Supply, Star Delta connections, relation between phase & line voltage power factor and their measurements; construction and principles of working of various types of electrical measuring instruments. All types of motor and generator – AC & DC transformers, starters, rectifiers, inverters, battery charges, batteries, servo and stepper motors, contactor control circuits, switchgear, relays, protection devices & schemes, substation, protective relaying, circuits breaker, generator protection, transformer protection, feeder & lightening protection, feeder & bus bar protection, lightening arrestor, earthing, voltage stabilizer & regulators, power control devices & circuits, phase controlled rectifiers, inverters, choppers dual converters, cycloconverters, power electronics application in control of drivers, refrigeration & air-conditioning.

2. Communication

Modulation & demodulation – Principles and operation of various types of AM, FM and PM modulators/ demodulators, pulse modulation – TDM, PAM, PPM, PWM, Multiplexing, Principles and applications of PCM.

Introduction of basic block diagram of digital and data communication systems, Coding error detection and correction techniques, Digital Modulation Techniques – ASK, ICW, FSK, PSK, Characteristics/ working of data transmission circuits, UART, USART, Modems, Protocols and their functions, brief of ISDN interfaces, local areas Network, Carrier Telephony – Features of carrier telephone system.

Microwave Engineering, Microwave Devices, Wave guides, Microwave Components, Microwave Antennas, Microwave Communication Systems – Block diagram & working principal”s of microwave communication link.

3. Network, Filters and Transmission Lines

Two part network, Altenuators, Filters, Transmission Lines and their applications, characteristic impedance of line, concept of refection and standing waves on a transmission line, Transmission line equation, Principles of impedance matching, Bandwidth consideration of a transmission line.

4. Instruments & Measurements

Specification of instruments – accuracy, precision, sensitivity, resolution range, Errors in measurements and loading effect, principles of voltage, current and resistance measurements, Transducers, measurement of displacement & strain, forces & torque measuring devices, pressure measuring device, flow, measuring device, power control devices & circuits. Types of AC mili voltmeters – Amplifier rectifier and rectifier amplifier, Block diagram explanation of a basic CRO and a triggered sweep oscilloscope, front panel controls, impedance Bridges and Q-Meters.

Principles of working and specifications of logic probes, signature analyzer and logic analyzer, signal generator, distortion factor meter, spectrum analyzer.

5. Control System

Basic elements of control system, open and closed loop system, concept of feedback, Block diagram of control system. Time lag, hysteresis, linearity concept. Self – regulating and non-self regulating control systems. Transfer function of simple control components, single feedback configuration.

Time response of system – Stability Analysis Characteristics equation, Routh’s table, Nyquist criterion, Relative stability, phase margin and gain margin.

Routh Hurwitz criterion, root locus techniques, Bode plot, Power plot, Gain margin and phase margin.

6. Microprocessors

Typical organization of a microcomputer system & functions of its various blocks, Architecture of a Microprocessors, Memories and I/O interfacing, Brief idea of M/C assembly languages, Machines & Mnemonic codes, Instruction format and Addressing mode, concept of instruction set, programming exercises in assembly language, concept of interrupt, Data transfer techniques – sync data transfer, Interrupt driven data transfer, DMA serial output data, serial input data.

7. Computer

Computer and its working, types of computers, familiarization with DOS and Windows, Concept of file, directory, folder, 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, Microprocessors – Microprocessors architecture, instruction set & simple assembly level programming. Microprocessors based system-design, typical examples. Personal computers and their typical uses, data communication principles, types and working principles of modems, Network principles, OSI model, functions of data link layer and network layer, networking computer communications protocolsa – X.25, TCP/IP.

Data base management system – Basic concept, entity relationship model, r model, DBMS based on relational model.