Bharat Sanchar Nigam Limited BSNL, will fill up about 2086 vacancies across India as Telecom Technical Assistant in the IDA Pay Scale of Rs.13600-25420 through an open  competitive written examination.

BSNL TTA Examination Date:  14.07.2013.

The standard of Paper in General ability test will be such as may be expected of an Engineering Diploma holder. The standard of papers in other subjects will approximately be that of Diploma level of an Indian Polytechnic. There shall be a single multiple choice objective types Paper of 3 hrs duration as per given below:

BSNL TTA Telecom Technical Assistant written Exam pattern:

Note: The candidate is required to obtain minimum qualifying marks in each of these parts as may be prescribed by the BSNL.

There will be negative marking in Written Test for each wrong answer, 25%   of mark of that question shall be deducted.

BSNL TTA Exam Detailed syllabus

PART-I: GENERAL ABILITY TEST – 20 MARKS

The candidate’s comprehension and understanding of General English shall be tested through simple exercise such as provision of antonyms and synonyms, fill in the blanks and multiple-choice exercise etc. This shall also include questions on current events, general knowledge and such matters of everyday observation and experiences as may be expected of Diploma holder.

PART-II: BASIC ENGINEERING –90 MARKS

Detailed Syllabus is as under:

1. 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.

2. Applied Physics: Measurement- Units and Dimension; Waves, Acoustic, Ultrasonic; Light; Laser and its Application, Atomic Structure and Energy Levels.

3. 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, Kirchhoff’s voltage, current laws and their applications in simple DC circuits, Basic Magnetism;

Electric Magnetism; Electromagnetic Induction; Concept of alternating voltage & current; Cells and Batteries, Voltage and Current Sources, The venin’s theorem, Norton’s theorem and their applications.

4. 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 electric & electronics circuits elements. Active and passive components; semi conductor Physics; Semiconductor Diode; Bipolar transistor & their circuits; Transistor Biasing stabilisation of operating point; Single stage transistor amplifier; field effect transistor, Mosfet circuits application.

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

Block diagram of IC. Timer (such as 555) and is working; Motivation Circuits; Time Base Circuits; Tnyristory and UT Regulated Power Supply.

5. Digital Techniques: Applications and advantages of digital system; number system ( binary and hexadecimal); Logic Gates; Logic Simplication; Codes and Parity; Arithmetic Circuits; Decoders, Display Devices and Associated Circuits,Multliplexers and De- multiplexers; batches and Flip Flops; Counters; Shift Registers; Memories A/D and D/A converters.

PART-III: SPECIALIZATION – 90 MARKS

Detailed Syllabus is as under:-

1. Electrical:

3 phase’s vs single-phase supply, Star data 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 motor, 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 and air conditioning.

2. Communication:

Modulation and de- modulation – and principles and operation of various type of AM, FM and PM modulator/demodulator pulse modulation – TDM, PAM, PPM, PWM, Multiplexing. Principle and applications of PCM.

Introduction of basic block diagram of digital and data communication system. Coding error detection and correction techniques; digital modulation techniques – ASK, ICW, FSK,PSK; Characteristic/ working of data transmission circuits; UART,USART;Modems ; protocols and

their function; brief idea of ISDN interfaces; local area Net work, carrier Telephony – futures of carrier telephone system.

Microwave Engineering; Microwave Devices; Waves –guides; microwaves component; microwave Antennas; Microwaves communication systems- block diagram and working principle of microwave communication link.

3 Network, Filters and Transmission Lines:

Two port network; Attenuators; 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 and 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 devices flow measuring devices, power control devices & circuits. Types of AC milli 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 concepts, self regulating and non- self regulating control systems. Transfer function of simple control components, single feedback configuration.

6. Time response of systems.

Stability Analysis Characteristics equation, Routh’s table, Nyquist criterion, Relative stability, phase margin and gain margin.

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

7. Microprocessors:

Typical organization of a microprocessor 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.

8. Computer:

Computer and its working, types of computers, familiarisation with DOS and Windows, concept of file, directory, folder, number system. 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 Organisation. I/O system organisation. Microprocessors – Microprocessors Architecture, instruction set and 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 components; Communication protocol- X.25, TCP/IP.

9. Database Management System:

Basic concepts, entity relationship model, relational model, DBMS based on relational model.

Best Wishes...