SCL 2026 Syllabus and Exam Pattern for Technician B and Technical Assistant Positions

Overview

The SCL Syllabus for 2026 is now accessible for recruitment for Technician ‘B’ and Technical Assistant positions as announced under Advertisement No. SCL:DR:01/2026. The updated examination framework comprises a 200-mark Computer-Based Test that encompasses General English, Quantitative Aptitude, Reasoning, General Awareness, and various trade-specific technical subjects. Candidates are encouraged to review the details of the Part A and Part B exam patterns, which include a total duration of 120 minutes and a negative marking scheme. Additionally, the syllabus covers technical topics pertinent to Electronics, Mechanical, Electrical, and other trades.

Selection Process

• Computer-Based Test: Candidates will take Part A focusing on general subjects and Part B concentrating on trade-specific knowledge.
• Trade-Wise Skill Test: Those who qualify from the CBT will be subject to a practical trade test relevant to their specialty.
• Verification: Candidates must validate their eligibility by providing original documents.
• Merit and Appointment: Final selection will depend on CBT merit among candidates who successfully complete the Skill Test and meet recruitment conditions.

Exam Pattern

Marking Scheme and Negative Marking

The marking scheme for the SCL examination is structured as follows:

This structure should be noted distinctly from alternate summaries that indicate different negative marking schemes.

Subject-wise Syllabus

Part A - Common Subjects

• General English Syllabus:
  • Vocabulary in English
  • Grammar and Sentence Construction
  • Words with Similar and Opposite Meanings
  • Error Identification
  • Fill in the Blanks
  • Expressions and Idioms
  • Substituting a Single Word
  • Improving Sentences
  • Active and Passive Voice Usage
  • Direct and Indirect Speech Usage
  • Rearranging Sentences
  • Cloze Tests
  • Comprehension of Texts
• Quantitative Aptitude Syllabus:
  • Integers, Decimals, and Fractions
  • Ratios and Percentages
  • Proportions
  • Means
  • Simple and Compound Interest
  • Profit, Loss, and Discounts
  • Partnerships
  • Alligation and Mixture
  • Distance and Time
  • Work and Time
  • Basic Algebra
  • Geometry
  • Measurements
  • Trigonometric Functions
  • Height and Distance Calculations
  • Graphical Representations of Statistics
• General Intelligence and Logical Ability Syllabus:
  • Reasoning Skills: Verbal and Non-Verbal
  • Similarities and Differences
  • Sorting and Classification
  • Number Patterns and Sequence Identification
  • Encoding and Decoding
  • Solving Problems
  • Venn Diagram Interpretations
  • Drawing Conclusions
  • Paper Folding and Unfolding Techniques
  • Hidden Figures Recognition
  • Analytical Reasoning
  • Understanding Emotional Intelligence
  • Understanding Social Intelligence
• General Knowledge and Current Affairs Syllabus:
  • Recent Events
  • Awareness of General Knowledge
  • Basic Scientific Concepts
  • History of India
  • Indian Cultural Heritage
  • Geography of India
  • Indian Economic Overview
  • Policies of General Nature
  • Scientific Developments
  • India and Neighboring Nations

Part B - Trade Wise Syllabus for Technician B

The syllabus in Part B varies based on the trade the candidate selects. Key topics for various trades include:

Technician B Fitter Syllabus

• Marking, Hand Tools and Measurement
• Engineering Materials
• Drilling and Measuring Instruments
• Types of Bearings
• Lathe Functions
• Nuts, Bolts and Fasteners
• Pipes and Pipe Fitting
• Welding Techniques
• Power Transfer
• Lubricants and Lubrication
• Pneumatics and Hydraulics

Technician B Electrician Syllabus

• Fundamentals of Electricity
• Alternating and Direct Circuits
• Fuses and Relay Mechanisms
• Batteries and Cells
• Electrical Motors and Machines
• Transformers
• Wiring in Electrical Systems
• Instruments for Electrical Measurement
• Lighting Systems
• Basic and Advanced Electronic Systems
• Power Generation, Distribution, and Transmission

Technician B Electronics Syllabus

• Fundamentals of Electronics and Electrical Concepts
• Components of Electronics
• Power Electronics
• Optoelectronic Elements
• Transducers and Sensors
• Systems of Communication
• Amplifiers and Oscillator Mechanisms
• Digital Electronics
• Solar Power and LED Lighting
• Electronic Devices

Additional Technician B Trade Syllabus Topics

• ICT System Maintenance: Basics of Electrical and Electronics, Semiconductor Components, Maintenance of PC Hardware, Troubleshooting Techniques, Operating Systems, and Management of Networks
• Refrigeration and Air Conditioning: Fundamentals of Refrigeration, Types of Compressors, Motors for AC, Refrigerants, Centralized Air Conditioning, Types of Condensers, Towers for Cooling, Cold Storage Techniques, and Maintenance Procedures
• Draughtsman (Civil): Engineering Drafting, Computer-Aided Design, Materials for Construction, Surveying Techniques, Estimating Costs, Construction Methods, Water Supply Management, Sanitation Practices, and IS Codes
• Draughtsman (Mechanical): Instruments for Drawing, Geometric Constructions, Projection Techniques, Sectional Views, Fits and Tolerances, Assembly Drawings, Computer-Aided Design
• Fire and Safety: Science of Fire, Chemical Properties of materials, Fire Classification, Detection Mechanisms, Extinguishing Systems, Pumps, Safety Signs and Color Codes
• Plumber: Materials for Plumbing, Water Supply Systems, Sanitary Engineering, Pumps, Valves, Plumbing Drawings, Installation and Maintenance
• Mechanic (Diesel): Engine Functionality, Vehicle System Components, Fuel Systems, Measurement Techniques, Welding Procedures, Hydraulics, Emission Control Mechanisms, Cooling Systems, and Troubleshooting

Technical Assistant Syllabus

The Technical Assistant syllabus for Part B is tailored to the candidate's relevant engineering or science discipline.

Technical Assistant Electronics Syllabus

• Electrical Machines
• Electrical Power Generation, Transmission and Distribution
• Electrical Circuit Analysis
• Electronic Components and Devices
• Digital Electronics
• Microcontrollers and Microprocessors
• Peripheral Devices
• Control Systems
• Electrical and Electronic Measurements
• Industrial Electronics
• Equipment Maintenance and Repair

Technical Assistant Mechanical Syllabus

• Applied Mathematics
• Engineering Drawing
• CAD, CAM and CIM
• Engineering Mechanics
• Strength of Materials
• Machine Design
• Fluid Mechanics
• Hydraulic Machines
• Thermodynamics
• Heat Transfer
• Refrigeration and Air Conditioning
• IC Engines
• Manufacturing Technology
• Production Engineering
• Industrial Engineering

Technical Assistant Electrical Syllabus

• Electrical Materials
• Electricity and Magnetism
• Electrical Engineering Drawing
• Estimation and Costing
• Electrical Circuit Analysis
• Electrical Machines
• Electrical Power Engineering
• Instrumentation and Control Engineering
• Electronics and Microprocessors

Technical Assistant Instrumentation Syllabus

• Engineering Mathematics
• Electronic Components and Circuits
• Electrical Measurements
• Calibration
• Industrial Instrumentation
• Process Variable Measurement
• Sensors and Transducers
• Control Systems and Process Controllers
• Analog and Digital Electronics
• Microprocessors and Microcontrollers
• PLC and DCS
• C Programming

Technical Assistant Computer Science Syllabus

• Computer Fundamentals
• C, C++ and PHP Programming
• Object-Oriented Programming
• Data Structures and Algorithms
• DBMS and SQL
• Operating Systems
• Software Engineering
• Computer Organisation
• Computer Networks
• Web Technologies
• Python
• Digital Electronics and Switching Theory

Negative Marking in SCL Exam

The 2026 recruitment scheme includes a negative marking system in the Computer-Based Test.

It is important to note that this is distinct from other summaries that might reference a different negative marking system.

Preparation Strategy

• Focus on thorough practice of the four Part A subjects.
• Allocate ample time for Part B preparation since it holds significant marks.
• Select the technical syllabus that aligns with your particular trade or discipline.
• Revise essential formulas, core principles, and practical applications.
• Engage in timed mock tests reflecting the 120-minute exam duration.
• Review any mistaken answers due to negative marking considerations.
• Prepare for the trade-specific Skill Test in parallel with the CBT.

Common Mistakes to Avoid

• Neglecting thorough preparation for both Part A and Part B.
• Overlooking the negative marking which may impact overall scores.
• Failing to practice time management during mock exams.
• Ignoring the syllabus details relevant to your chosen trade.
• Underestimating the importance of the Skill Test in the selection process.

Frequently Asked Questions