**DMRC Exam Pattern**

Computer Based Test (CBT)- The CBT will consist of two papers - Paper-I and Paper-II, to be held on the same day at the same center.

Paper-I & II- Consist of multiple-choice objective type questions, bilingual (Hindi/English).

There will be negative marking. For every wrong answer - 1/3 marks will be deducted. The Paper-I shall be of 1.5 hours duration.

There will be negative marking. For every wrong answer - 1/3 marks will be deducted. The Paper-I shall be of 1.5 hours duration.

Paper- I – It consists of two section, Section- A & B. There will be a total of 120 questions, each carrying equal marks.

Section A- Non- Technical- 45 question, 45 Marks.

**Paper- II: General English.**

General English for DMRC– 60 Question each one marks

Noun, Pronoun, Article, Adjective, Verb, Adverb, Prepotion, Conjuction, Time and Tense- 8-10 Question

Voice- 8-10 Marks (8- 10 Question).

Narration- 8-10 Marks (8- 10 Question)

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Synonyms and Antonyms – 8- 10 question.

One Word Substitution, Phresal verb, Idioms and Phrases, Spelling Test – 8- 10 question.

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Synonyms and Antonyms – 8- 10 question.

One Word Substitution, Phresal verb, Idioms and Phrases, Spelling Test – 8- 10 question.

Question Tag, Common error, and Miscelleneous – 8- 10 question

**Paper- I**

**Section A-**

**Non- Technical Syllabus for DMRC Electrical**

1. General Awareness- History, Polity, Geography, Computer, Science, National and International Organization.

**2. Current Affairs.**

**3. General Intelligence & Reasoning for DMRC**

Coding and Decoding, Graph, Table, Blood Relation, Cubes and Dices, Direction Sense test, Bar Diagram, Logic Ven diagram, Pie-chart, & Analytics Reasoning

**4. Quantitative Aptitude for DRMC.**

Number System, Average, Ratio and Proportion, Percentage, Profit and Losses, SI and CI, Time and Work, Time, Distance and Speed, Mixture and Allegation, Partnership, Boat and Stream, Pipe, and Cistern.

**Section- B: Technical Syallbus for Dmrc JE Electrical**

**Network Theory**

KCL, KVL, Node Analysis and Mesh analysis, Transient response(dc and ac networks), Sinusoidal steady‐state analysis, Resonance, Passive filters(LC).

Ideal current and voltage sources, Thevenin’s theorem, Norton’s theorem, Superposition theorem, Maximum power transfer theorem.

Two‐port networks, Three phase circuits, Power and power factor in ac circuits, Network graph.

**Signals and Systems**

**Signal Operation-**Time Shifting, Scaling, & Reversal.

**System**- Linear, causality, stability.

Fourier series and Fourier transform representations, sampling theorem.

Discrete-Time signals - discrete-time Fourier transform, DFT(Discrete Fourier transform), FFT, Z-transform.

LTI systems- Properties, frequency response, group delay, phase delay.

**Electromagnetic Fields**
Coulomb's Law, Electric Field Intensity, Electric Flux Density, Gauss's Law. And their Application

Divergence Law, Curl Theorem, Electric field and potential due to point & line.

Charge distributions concept of Plane and Spherical, Dielectric medium Effects.

The capacitance of simple configurations.

Biot‐Savart’s law, Ampere’s law, Faraday’s law, Lorentz force, Inductance, Magnetomotive force, Reluctance, Magnetic circuits, Self and Mutual inductance of simple configurations.

**Electrical Machines**

**1-Phase transformer**- Equivalent circuit, phasor diagrams, open circuit and short circuit testing, regulation and efficiency.

**Three phase transformers**

**-**connections, parallel operation. Auto‐transformer, Electromechanical energy conversion principles.

**3-Phase induction motors**- Operation principle, characteristics of torque-speed, no-load and blocked rotor test, starting and speed control, Operating principle of 1-Phase induction motors.

**DC machines**

**-**separately excited, series and shunt, Operation modes of motoring and generating, starting and speed control of dc motors.

**Synchronous machines**- Cylindrical & salient pole machine, performance, regulation and parallel operation of generators, synchronous motor starting, characteristics, All types of losses & efficiency calculation of electric machines.

**Control Systems**

Feedback principle (Positive and Negative feedback), transfer function, Block diagrams and Signal flow graphs Theory. Meson’s Gain Formula.

Transient and Steady‐state analysis of linear time-invariant systems, Routh-Hurwitz Criterion, Polar and Nyquist Plot criteria, Bode plots, gain & Phase margin, Root loci, Stability analysis.

Lag, Lead and Lead‐Lag compensators; Proportion, proportion and Intergration(PI) and Proportion Integration and Differentiator (PID) controllers.

State space model, State transition matrix, transfer function of State model, Controlability and Obserbability.

**Electrical & Electronics measurements**

Measurement of voltage, current, power, energy and power factor Meaurement, Bridges and Potentiometers mesurement.

Instrument transformers, , Phase, Time and Frequency measurement, Oscilloscopes, and Error analysis, Multimeters, and Digital voltmeters.

**Power Systems**

Concepts of Power generation, ac and dc transmission concepts, Models and performance of transmission lines and cables, Series and shunt compensation.

Electric field distribution and insulators, Distribution systems, Per-unit quantities, Bus admittance matrix, Gauss-Seidel and Newton-Raphson load flow concept.

Voltage & Frequency control, Power factor correction, and modification, all Symmetrical components, Symmetrical and unsymmetrical fault concept, over‐current Principle, distance and differential protection, breakers of circuits, Criterion of an Equal area.

**Analog Electronics**

Bipolar junction transistor, MOSFET.

Diodes and Its Characteristics and Application.

Diode circuits: clipping, clamping, rectifiers.

Amplifiers: Biasing, Equivalent circuit and Frequency response.

Oscillators and Feedback amplifiers.

Operational amplifiers: Ideal and Practical Characteristics of OP-AMP & applications, Active filters, VCOs and Timers.

Cathode Ray Oscilloscopes (CRT), Multimeters, and Digital voltmeters

**Power Electronics**

**Semiconductor devices:**Diode, Thyristor (SCR), Triac Diode, GTO, MOSFET, and IGBT.

DC to DC conversion: Buck, Boost, and Buck-Boost converters.

Single and three phase configuration of uncontrolled rectifiers.

Line-commutated thyristor(SCR) based converters, Bidirectional ac to dc voltage converters, Issues of line current harmonics.

Power factor, Distortion factor of ac to dc converters, 1-Phase and 3-phase inverters.

**Communication**- Basic communication, Sinusoidal pulse width modulation.

**Digital Electronics**

Number systems

Code converters: BCD, Binary, HEX, Octa other codes

Combinatorial Circuits.

Boolean algebra.

Karnaugh map.

CMOS implementations.

Arithmetic Circuits.

Multiplexers.

Encoder & Decoders. A/D and D/A

Sequential circuits- latches and all flip‐flops, counters, shift‐registers.

Semiconductor memories- ROM(Read Only Memory), SRAM (Static Read Access Memory), DRAM(Dynamic read Access Memory)

**A Microprocessor (8085- 8 Bit)-**Architecture, All Instruction, Programming, memory.

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DMRC Syllabus For Electrical | DMRC Syllabus 2018
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February 15, 2018
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