GATE ELECTRICAL ONLINE TEST SERIES

6 Apr 2018 1 By gate up
 A)   it includes subject wise free online exam .


CLICK ON SUBJECT EXAM ( PLEASE COMMENT YOUR  EXAM EXPERIENCE)
WE WILL SHORTLY DEVELOP THE EXAM ( WHICH WILL CONSIST THE SOLUTION ALSO) .

1) Electrical machine exam CLICK HERE

electrical machine exam includes :

Single phase transformer: equivalent circuit, phasor diagram, open circuit and short circuit
tests, regulation and efficiency; Three phase transformers: connections, parallel operation; Autotransformer, Electromechanical energy conversion principles, DC machines: separately excited, series and shunt, motoring and generating mode of operation and their characteristics, starting and speed control of dc motors; Three phase induction motors: principle of operation, types, performance,torque-speed characteristics,no-load and blocked rotor tests, equivalent circuit, starting and speed control; Operating principle of single phase induction motors; Synchronous machines: cylindrical and salient pole machines, performance, regulation and parallel operation of generators, starting of synchronous motor, characteristics; Types of losses and efficiency calculations of electric machines.

1 A) Induction machine exam CLICK HERE

induction machine exam includes :

Three phase induction motors: principle of operation, types, performance,torque-speed characteristics,no-load and blocked rotor tests, equivalent circuit, starting and speed control; Operating principle of single phase induction motors.

2) Power electronics exam CLICK HERE

power electronics exam includes :

Characteristics of semiconductor power devices: Diode, Thyristor, Triac, GTO, MOSFET,
IGBT; DC to DC conversion: Buck, Boost and Buck-Boost converters; Single and three phase configuration of uncontrolled rectifiers, Line commutated thyristor based converters, Bidirectional ac to dc voltage source converters, Issues of line current harmonics, Power factor, Distortion factor of ac to dc converters, Single phase and three phase inverters, Sinusoidal pulse width modulation.

2 A) Rectifier exam CLICK HERE

rectifier exam includes :

 Single and three phase configuration of uncontrolled rectifiers, Line commutated thyristor based converters, Bidirectional ac to dc voltage source converters, Issues of line current harmonics, Power factor, Distortion factor of ac to dc converters

2 B) Chopper exam CLICK HERE

chopper exam includes :

Characteristics of semiconductor power devices: Diode, Thyristor, Triac, GTO, MOSFET,
IGBT; DC to DC conversion: Buck, Boost andBuck-Boost converters;

2 C) Inverter exam CLICK HERE

inverter exam includes :

 Single phase and three phase inverters, Sinusoidal pulse width modulation.

3 ) Network theory exam CLICK HERE

network theory exam includes :

Network graph, KCL, KVL, Node and Mesh analysis, Transient response of dc and ac networks, Sinusoidal steadystate analysis, Resonance, Passive filters, Ideal current and voltage sources, Thevenin’s theorem, Norton’s theorem, Superposition theorem, Maximum power transfer theorem, Twoport networks, Three phase circuits, Power and power factor in ac circuits.

4) Signal & system exam CLICK HERE

signal and system exam includes :

Representation of continuous and discretetime signals, Shifting and scaling operations, Linear Time Invariant and Causal systems, Fourier series representation of continuous periodic signals, Sampling theorem, Applications of Fourier Transform, Laplace Transform and z-Transform.

5) Measurement exam CLICK HERE

measurement exam includes : 

Bridges and Potentiometers, Measurement of voltage, current, power, energy and power factor; Instrument transformers, Digital voltmeters and multimeters, Phase, Time and Frequency measurement; Oscilloscopes, Error analysis.

6) Control system exam CLICK HERE

control system exam inludes :

Mathematical modeling and representation of systems, Feedback principle, transfer function, Block diagrams and Signal flow graphs, Transient and Steadystate analysis of linear time invariant systems,Routh-Hurwitz and Nyquist criteria, Bode plots, Root loci, Stability analysis, Lag, Lead and LeadLag compensators; P, PI and PID controllers; State space model, State transition matrix.

7) Digital electronics exam CLICK HERE

digital electronics exam includes :

 k map , Combinational and Sequential logic circuits, Multiplexer, Demultiplexer

8) Engineering mathematics exam CLICK HERE

engineering mathematics exam includes :

Linear AlgebraMatrix Algebra, Systems of linear equations, Eigenvalues, Eigenvectors.
CalculusMean value theorems, Theorems of integral calculus, Evaluation of definite and improper integrals, Partial Derivatives, Maxima and minima, Multiple integrals, Fourier series, Vector identities, Directional derivatives, Line integral, Surface integral, Volume integral, Stokes’s theorem, Gauss’s theorem, Green’s theorem.
Differential equationsFirst order equations (linear and nonlinear), Higher order linear differential equations with constant coefficients, Method of variation of parameters, Cauchy’s equation, Euler’s equation, Initial and boundary value problems, Partial Differential Equations, Method of separation of variables.
Complex variablesAnalytic functions, Cauchy’s integral theorem, Cauchy’s integral formula, Taylor series, Laurent series, Residue theorem, Solution integrals.
Probability and StatisticsSampling theorems, Conditional probability, Mean, Median, Mode, Standard Deviation, Random variables, Discrete and Continuous distributions, Poisson distribution, Normal distribution, Binomial distribution, Correlation analysis, Regression analysis.
Numerical MethodsSolutions of nonlinear algebraic equations, Single and Multistep methods for differential equations.
Transform TheoryFourier Transform, Laplace Transform, zTransform.

9) Aptitude exam CLICK HERE

aptitude exam includes :

1. Verbal Ability: English grammar, sentence completion, verbal analogies, word groups, instructions, critical reasoning and verbal deduction.
2. Numerical Ability: Numerical computation, numerical estimation, numerical reasoning and data interpretation.

10) Power system exam CLICK HERE

power system exam includes :

Power generation concepts, ac and dc transmission concepts, Models and performance of transmission lines and cables, Series and shunt compensation, Electric field distribution and insulators, Distribution systems, Perunit quantities, Bus admittance matrix, Gauss- Seidel andNewton-Raphson load flow methods, Voltage and Frequency control, Power factor correction, Symmetrical components, Symmetrical and unsymmetrical fault analysis, Principles of overcurrent, differential and distance protection; Circuit breakers, System stability concepts, Equal area criterion.