Online TTA Preparation

Online TTA Preparation including General Ability, Basic Engineering, Specialization:

Click the topic of syllabus you wants to study and prepare it online from given table below. Links in Blue are available now , all links will be updated as soon as possible keep checking the page daily for updates.

Sr No.	Paper I:General ability test:20 Marks	Paper II:Basic Engineering:90 Marks	Paper III:Specialization:90 Marks
1	General English: antonyms and synonyms, fill in the blanks	Applied Mathematics : Co-ordinate Geometry; Vector Algebra; Matrix and Determinant: Differential Calculus and Integral Calculus: Differential equation of second order: Fourier Series; LaplaceTransform; Complex Number; Partial Differentiation.	Electrical: 3 Phase vs single phase supply, Star Delta connections, relation betweenphase & line voltage, power factor and their measurements, constructions 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, circuit breaker, generator protection, transformer protection, feeder & lightening protection, feeder & busbar 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 & airconditioning.
2	Current Events/Affairs & General Knowledge	Applied Physics: Measurement – Units and Dimensions; Waves, Acoustics, Ultrasonics; Light; Laser and its applications; Atomic Structure and Energy Levels.	Communication: Modulation and demodulation – principles and operation of various types ofAM, 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 idea of ISDN interfaces, local area Network; Carrier Telephony -– Features of carrier telephone system.Microwave Engineering: Microwave Devices; Waveguides; Microwave Components; Microwave antennas; Microwave Communication Systems – Block diagram & working principles of microwave communication link.
3		Electronic Devices and Circuits: Classification of materials intoconductor, semi conductor, Insulator etc., electrical properties, magnetic materials, various types of relays, switches and connectors. Conventional representation of electric and electronic circuits elements. Active and passive components; semi conductor Physics; Semi conductor Diode; Bipolar Transistor & their circuits; Transistor Biasing & Stabilisation of operating point; Single stage transistor amplifier’; field effect transistor, Mosfet circuit 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 Multivibrator Circuits; time base circuits; thyristors and UJT regulated power supply.	Network, Filters and Transmission Lines: Two port network; Attenuators , Filters; Transmission Lines and their applications; characteristic impedance of line; concept of reflection and standing waves on a transmission line; Transmission line equation; Principle of impedance matching; Bandwidth consideration of a transmission line.
4		Digital Techniques: Applications and advantages of digital systems; number system (binary and hexadecimal); Logic Gates; Logic Simplifications; Codes and Parity; Arithmetic Circuits; Decoders, Display Devices and Associated Circuits; Multiplexers and De-multiplexers; Latches and Flipflops, Counters, Shift Register, Memories; A/D and D/A converters.	Instruments and Measurements: Specifications of instruments accuracy, precision, sensitivity, resolution range, Errors in measurement and loading effect; Principles of voltage,current and resistance measurements Transducers, measurement ofdisplacement & strain, force & torque measuring devices, pressure measuringdevices, flow measuring devices, power control devices & circuits. Types ofAC millivoltmeters – Amplifier rectifier and rectifier amplifier; Block diagramexplanation of a basic CRO and a triggered sweep, oscilloscope, front panelcontrols; Impedance Bridges and Q Meters; Principles of working andspecifications of logic probes, signature analyser and logic analyser, signalgenerator, distortion factor meter, spectrum analyser.
5			Control systems: Basic elements of control system, open and closed loop system, concepts of feedback. Block diagram of control system. Time lag, hysterisis, linearity concepts. Self regulating and non self regulating control systems. Transfer function of simple control components, single feedback configuration. Time response of systems. Stability Analysis – characteristic equation, Routh’s table Nyquist critereon, Relative stability, phase margin and gain margin. Routh Hurwitz critereon, root locus technique, Bode plot, Polar plot, Gain margin and phase margin.
6			Microprocessors: Typical organisation of a microcomputer system & functions of its various blocks; Architecture of a Microprocessor; Memories and I/O Interfacing ; Brief idea of M/C & assembly languages, Machines & Mnemonics codes; instruction format and Addressing mode; concept of Instruction set ; programming exercises in assembly language; concept of interrupt; Data transfer techniques – Sync data transfer, async data transfer, interrupt driven data transfer, DMA , serial output data, serial input data.
7			Computers: Computer and its working, types of computers, familiarisation with DOS and Windows – concept of file, directory, folder, Number systems, Data representation; Programming _ Elements of high level programming language, PASCAL, C; use of basic data structures; Fundamentals ofcomputer architecture, Processor design, Control unit design, Memory organisation. I/O system organisation. Microprocessors – micro processor architecture. Instruction set and simple assembly level programming. Microprocessor based system design ; typical examples. Personal computes and their typical uses, data communication principles, types and working principles of modems, Network principles, OSI model, functions of data linklayer and network layer, networking components, communication protocols- X–25, TCP/IP. Database Management System – basic concepts, entity relationship model,relational model, DBMS based on relational model.