NCL Technician Syllabus 2025

NCL Technician Syllabus 2025 Download

NCL Technician Syllabus 2025: Northern Coalfields Limited की तरफ से आईटीआई पास विद्यार्थियों के लिए कुल 200 पदों पर टेक्नीशियन की वैकेंसी अप्रैल माह 2025 में निकाली गई हैं | NCL टेक्नीशियन वैकेंसी का फॉर्म ऑनलाइन आवेदन करने का अंतिम तिथि दिनांक 10 मई 2025 तक हैं |

दोस्तों मैं आज आप सभी को NCL Technician पद के सिलेबस के बारे में जानकारी उपलब्ध कराऊंगा | आप सभी नीचे दिए गए लिंक से Northern Coalfields Limited (NCL) के टेक्नीशियन पद का सिलेबस डाउनलोड कर सकते हैं |

Recruitment Organization	Northern Coalfields Limited (NCL)
Advertisement Number	NCL/HQ/PD/Manpower/DR/2025-26/65
Post Name	Technician
Total Post	200
Qualification	10Th + ITI + Apprentice Pass
Start Date for Apply Online	17/04/2025
Last Date for Apply Online	10/05/2025
Official Website	nclcil.in

• Start Date for Apply Online Form: 17/04/2025
• Last Date for Apply Online Form: 10/05/2025

• UR/EWS/OBC: RS 1180/-
• SC/ST/PWD/ESM: NILL

• Minimum Age: 18 Years
• Maximum Age: 30 Years
• Age Relaxation As Per Rules.

Name of the Post	Educational Qualification	Total Post
Technician Fitter (Trainee) Cat. III	(a) Matriculate or equivalent examination passed from any recognized Board of examination; & (b) ITI (2 year course) in Fitter Trade along with Trade certificate issued by NCVT/SCVT and minimum 1 year Apprenticeship Training Certificate issued by NCVT/SCVT under The Apprentices Act, 1961.	95
Technician Electrician (Trainee) Cat. III	(a) Matriculate or equivalent examination passed from any recognized Board of examination; & (b) ITI (2 years course) in Electrician Trade along with Trade certificate issued by NCVT/SCVT and minimum 1 year Apprenticeship Training Certificate issued by NCVT/SCVT under The Apprentices Act, 1961.	95
Technician Welder (Trainee) Cat. II	(a) Matriculate or equivalent examination passed from any recognized Board of examination; & (b) ITI in Welder Trade along with Trade certificate issued by NCVT/SCVT and minimum 1 year Apprenticeship Training Certificate issued by NCVT/SCVT under The Apprentices Act, 1961.	10

NCL Technician Selection Will Be Based On Online CBT Examination.

• Exam Duration: 90 Minutes
• Total Questions: 100
• Total Marks: 100
• Right Answer: 01 Marks Awarded
• Wrong Answer: No Negative Marking

Name of the Subject	No. of Questions	Maximum Marks
Technical Knowledge (Discipline Related)	70	70
General Knowledge, General Awareness, Reasoning, Verbal & Mental Ability and Quantitative Aptitude	30	30
Total	100	100

Questions related to technical knowledge of discipline as per current curriculum of Indian Universities/Institutes (Indicative syllabus has been given below):-

1. Basic arithmetic calculation, algebra, trigonometry, statistics.
2. Basic knowledge of system of units and its conversions.
3. Basic 10th standard knowledge of Electricity.
4. Knowledge of properties of materials. Basic.
5. Basic information related to jigs, drilling and other machining processes and principles.
6. Basic knowledge of pipe fittings, belt drive, gear train etc.
7. Knowledge of different measuring and machining tools and its principles.
8. General concepts of limits, fits and tolerances.
9. Knowledge of general safety rules at work place, use of fire extinguishers.
10. General information related to Vehicle and Internal combustion engine etc. as per the course offered by the Recognized Institutes.

1. Electrical Fundamentals: Ohm’s Law, Kirchhoff’s Law, Series & Parallel combination of Resistors, Inductors & Capacitors. Wheatstone bridge, PVC wires, Conductors & cables. Wire joints, Soldering. Heating, Lighting, magnetic & chemical effect of electric current. Joule’s law. Electrolysis & its laws. Cells and Batteries – Primary & secondary cell, Lead Acid battery, Hybrid cell, Alkaline cell. Charging of battery. Care & maintenance of Battery.
2. Magnetic Circuits: Terminology used in magnetic circuit. Principle of electro magnet. Capacitor & its types. Faraday’s laws of Electromagnetic Induction. Fleming’s rule, B-H Curve. RLC circuit- series & parallel resonance.
3. DC generators: Working principle, Types- Series, Shunt & Compound Generator, EMF equation, Characteristics, commutation, Efficiency, Regulation & Applications.
4. DC Motors: Principle, Types- Series, Shunt & Compound Motors. Characteristics curve, commutation. Applications of DC Motors. Necessity of starter, working of starters (3 point & 4 point). Speed control of DC Shunt motor (Armature & Field control). Trouble shooting – Care and maintenance.
5. Active & Reactive Power: Calculation for Work, Power & Energy, Power factor. Causes & effects of low power factor. Methods of improving power factor. Calculation of capacitor banks. Automatic power factor correction (APFC) panels. Three phase three wires & three phase four wires system. Three phase power.
6. Transformers: Working Principle, Construction. Classification of Transformers, EMF equation, rating, Loading, Losses & Efficiency Regulation, Parallel Operation, Cooling methods, Transformer oil testing. Care and maintenance, Protective devices. Tap changer – ON load OFF load. Auto transformer, Instrument Transformer – CT & PT, Welding Transformer.
7. Measuring Instruments: PMMC, MI Meters working principle and construction. Digital meters. Megger & Earth tester, Multimeter. Calibrations of meters. Terminology used in Illumination and calculations. Types of Lamps – Incandescent Lamp and Discharge Lamp fluorescent, HPMV, HPSV Lamps, Drum Switch, Lighting calculations, Energy efficient lighting systems (CFL,LED etc), Two watt meters method of 3 phase power measurement.
8. Semi-conductor Devices: Diodes, Characteristics, Zener diode, Rectifiers & filter circuits.
9. Squirrel cage & Wound Rotor type Induction Motor: Construction, parts, working principle, Concept of rotating magnetic field, Applications. Types of starters – DOL, Star delta, Auto transformer starter etc. Rotor resistance type starter. Introduction to Speed control of 3 phase Induction motor. Torque – speed characteristics. Losses, efficiency, classification, working principle & uses. AC motor stator Re-winding. Single phase & Three phase winding development diagram.
10. Synchronous Motor: Construction, working principle, Starting Method. Effect of change of excitation on load. V-curve and Inverted V-curve. Power factor correction.
11. Electric Drives: DC drive, AC drive. Preventive & Break down maintenance of DC/AC machines, Voltage stabilizer, UPS, Inverter.
12. Basics Of Wiring: Power & control circuits wiring. Machine control cabinet/ control panel layout, assembly. Control elements -Push button switches, contactor, overload Relay etc. Concept of neutral and earth. Earthing, types, methods of reducing earth resistance, Earth tester. Star & Delta connections. Concept-Principle of plan estimation and costpreparation of wiring layout domestic/ Industrial/ Commercial. I.E rules for muti-storeyed building. National Electrical Code, SWG, common electrical Accessories – MCB, ELCB, MCCB, RCCB etc. Comparison between different types of wirings, Installation, Testing methods – Wiring estimations & cost.
13. Basics of Thermal Power: Plant layout, components and working principle of thermal power plant.
14. Non-conventional energy resources: Working principle of wind and solar power generation.
15. Electrical Substation: Single Line Diagram of Substations. Electric supply system EHVAC transmission. Advantages of high voltage transmission Overhead lines: – Poles & Towers, bushings, Insulators & its types. Corona effect, Bundle conductors, Sag, Skin effect & Ferranti effect. Fault studies. 3 phase service-cable fault. Sub-station HT/LTFunction, equipment, types of distribution system. Protective relaysovercurrent, IDMT, overvoltage, differential, distance relay. Circuit breakers-lightning arrestor used in HT line. Cable – different types of cables, cable rating, derating factor. Fire fighting, Safe handling Tools & Equipments, Rescue of person who is in contact with live wire, Treat a person for electric shock/ injury. Etc. as per the courses offered by the Recognised Institutes.

1. First Aid. Welding in Industry. Safety precautions in Shielded metal Arc Welding and Oxy-Acetylene Welding and Cutting. Arc and Gas welding Equipments, tools and accessories. Various Welding Processes and its applications. Different process of metal joining methods: Bolting, riveting, soldering, brazing, seaming etcs. Types of welding joints and its applications. Edge preparation and fit up for different thickness. Surface Cleaning.
2. Basic electricity applicable to arc welding and related electrical terms & definitions. Heat and temperature and its terms related to welding, Principle of arc welding and characteristics of arc. Common gases used for welding & cutting, flame temperatures and uses. Chemistry of oxy-acetylene flame. Types of oxy-acetylene flames and uses. Oxy-Acetylene Cutting Equipment principle, parameters and application.
3. Arc welding power sources: Transformer, Motor, Generator set, Rectifier and Inverter type welding machines and its care & maintenance. Advantages and Disadvantages of AC and DC welding machines.
4. Welding positions as per EN & ASME: flat, horizontal, vertical and overhead positions. Weld slope and rotation. Welding symbols as per BIS & AWS. Arc length types & effects of arc length. Polarity: Types and applications.
5. Calcium carbide properties and uses. Acetylene gas properties and generating methods. Acetylene gas purifier, Hydraulic back pressure valve and Flash back arrestor.
6. Oxygen gas and its properities, Production of oxygen by Air liquification. Charging process of oxygen and acetylene gases. Oxygen and Dissolved acetylene gas cylinders and color coding for different gas cylinders. Gas regulators, types and uses.
7. Oxy acetylene gas welding systems (Low pressure and High pressure). Different between gas welding blow pipe (LP & HP) and gas cutting blow pipe. Gas welding techniques. Rightward and Leftward techniques. Arc blow- causes and methods of controlling. Distortion in arc & gas welding and methods employed to minimize distortion. Arc welding defects, causes and remedies.
8. Specification of pipes, various types of pipe joints, pipe welding positions, and procedure. Difference between pipe welding and plate welding. Pipe development of Elbow joint, T joint, Y joint and branch joint. Manifold system.
9. Gas welding filler rods, specifications and sizes. Gas welding fluxes – types and functions. Gas Brazing & Soldering: Principles, Types fluxes & uses. Gas welding defects, causes and remedies.
10. Electrode: types, functions of flux, coating factor, sizes of electrode coding of electrode as per BIS, AWS, Effects of moisture pick up. Storage and baking of electrodes. Special purpose electrodes and their applications.
11. Weldability of metals, importance of pre heating, post heating and maintenance of inter pass temperature. Classification of steel. Welding of low, medium and high carbon steel and alloy steels.
12. Effects of alloying elements on steel. Stainless steel: types-weld decay and weldability. Brass- types – properties and welding methods. Coppertypes- properties and welding methods. Aluminium and its alloys, properties types. Welding methods of cast iron. Etc. as per the courses offered by the Recognised Institutes.

This section is common for all Posts, will carry 30 questions belonging to:-

1. General Knowledge – About India and its international relations, General Science etc/
2. General Awareness – About Sports, Defence, Books, Prizes, About Indian democracy, etc./
3. Reasoning, Verbal & Mental Ability – Synonym & Antonym (Hindi/English), Grammar, Relationship etc./
4. Quantitative aptitude – Work relationship, Profit & Loss, Speed etc /

Selection Process	Computer Based Test + Document Verification + Medical Test
Exam Mode	Online CBT Examination
Exam Language	Hindi + English
Total Questions	100
Total Marks	100
Exam Duration	90 Minutes
Question Type	Objective MCQ
Right Answer	01 Marks Awarded
Wrong Answer	No Negative Marking For Wrong Answer

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