CPCB Recruitment Scientist B Syllabus

CPCB recruitment scientist b syllabus

CPCB recruitment scientist b syllabus


The official CPCB Scientist-B Syllabus 2023 syllabus has not yet been announced by the Central Pollution Control Board (CPCB), however according to the previous vacancy announcement, the CPCB Scientist-B Syllabus for the various disciplines is as follows:

Post Name

Topic-Wise Syllabus

Scientist B (Chemical, Civil and Environmental Engineering)

  • Chemistry for Environmental Engineering
  • Sewage Treatment Plants
  • Air Pollution Control Technologies
  • Waste Management (Solid Waste, Hazardous waste, E-Waste, Biomedical Waste, Plastic waste, and used Batteries waste)
  • Industrial Wastewater Treatment (Design of ETPs/CETPs etc.)
  • Sewerage and Water Supply Engineering
  • Noise Pollution & Control
  • Basic Hydraulic Engineering (measurement of flow, etc.)
  • Landfill Design
  • Soil Contamination & Remediation
  • Water & Air Quality sampling
  • Industrial Pollution Control (Thermal Power Plants, Tanneries, Dairy, Steel, and Oil Refineries)
  • Sensors & Transducers, Measurement techniques used in GC / GC-MS / NDIR / Spectrophotometer /HPLC / AAS / ICP /ERY/ED-ERF / Flame photometer / FTIR / Etc.
  • Continuous Emission Monitoring Systems
  • Units and Standards.
  • Measurement of current, Voltage, power, Power-factor and energy.
  • Indicating instruments.
  • Measurement of resistance, inductance. Capacitance and frequency.

Scientist B (Electrical)

  • Energy-efficient lighting, Energy efficient Air Conditioning systems, Energy efficient materials for green buildings, Solar panels, etc. Energy audit.
  • Gauss’s Law and Amperes Law – Fields in dielectrics conductors and magnetic materials.
  • Band Theory – Conductors, Semi-conductors, Insulators, and Super-conductivity. Insulators for electrical and electronic applications. Magnetic materials. Ferro and ferrimagnetism, Properties Ceramics, and application, Material audit and balance.
  • Circuits elements. Kirchoff’s Laws – Three-phase circuits. Two-port networks. Elements of two-element network synthesis.
  • Units and Standards – Measurement of current, Voltage, power, Power-factor and energy. Indicating instruments. Measurement of Inductance. Capacitance and frequency.
  • Power transformers – Construction and testing. Equivalent circuits – Losses and efficiency. Regulation. Auto-transformer, 3-phase transformer. Parallel operation. Basic concepts In rotating machines. EMF, torque, and basic machine types. Construction and operation, leakage losses, and efficiency. D.C. Machines. Construction, Excitation methods. Circuit models. Armature reaction and commutation. Characteristics and performance analysis. Generators and motors. Starting and speed control. Testing. Losses and efficiency. Synchronous Machines. UPS etc.
  • Maintenance of sub-station, Electrical rooms, Air conditioning system, pump room, and generators.

Scientist B (CS/IT)

  • Computer: History of Computer and their classification, Basic Organization, Memory – RAM, ROM, EPROM, etc., Magnetic-Floppy, Hard disks, CDROM, WORM, etc., Concept of Virtual Memory and Cache Memory, Number systems, binary octal, Hexadecimal, Binary Addition, Subtraction and Multiplication, Flotation, point representation and arithmetic, Arithmetic through stacks.
  • Operating systems: assemblers, elements of Assembly language programming-Overview of the Assembly process, assembler for the IBM PC, Process synchronization, Memory Management – address Binding – dynamic Loading and linking – overlays – logical and Physical address space –Contiguous Allocation – internal& External Fragmentation.  Non-Contiguous Allocation: Packing and Segmentation Schemes – Implementation – Hardware Protection – Protection – sharing – Fragmentation.
  • Virtual Memory: Demand Paging – Page Replacement – Page Replacement algorithms – Thrashing.
  • File System: File Concepts – Assess Methods – Directory Structures – Protection Consistency Semantics – File system Structures – Allocation Methods – Free Space Management.
  • I/O System: Overview – I/O hardware – Application I/O Interface – Kernel I/O subsystem, Performance, Secondary Storage Structures, Protection, Goals, Domain – Access matrix.  ·
  • Assemblers: Elements of assembly language programming – Overview of the Assembly process – Design of a low-pass Assembler – a single pass Assembler for the IBM PC. The security Problem – Authentication – Threats – Threat Monitoring – Encryption.
  • Fundamentals of programming: Unix Programming, Programming In FORTRAN, C, Object Oriented Programming in C++, programming in Java, Basics of compilers.
  • Database Management Systems: Advantages and components of a Database Management System, Data Types, Data Dictionary, Query Basics, Forms and Reports, Graphical objects, Error Handing, Distributing Application, Data Storage Methods, Data Clustering, and Partitioning, Database Administration, Backup and Recovery, Security and Privacy, Distributed Databases, Client/Server Databases, Object Oriented Databases, Integrated Applications, SQL, RDBMS.
  • Internet Technology: Basics, topologies, layers, switching in the networks, bridges, routers and gateways, types of networks, Client/Server Applications, Internet Standards and specifications, ISP, Broad Band Technologies, Protocols, web­ servers, browsers, and security, firewalls, data security, HTML, DHTML, XML, Web designing.
  • Fundamentals of Geographical Information System (GIS): GIS Data and Spatial Models, Topology ad Spatial Operations, Projections, Scale and Coordinate  Systems,  Mapping,  GIS  Analysis, and Cartography. Basics of GIS application development.

Scientist B (ECE)

  • Conductors, Semiconductors, Insulators, Magnetic, Passive components, characteristics of Resistors, Capacitors, and inductors.PN Junction diode, forward and reverse bias characteristics and equivalent circuits of the diode, Zener diode, and applications, clipping, clamping, and rectifier circuits using diodes.
  • BJT, FET, and MOSFET; Blasing and stability, Emitter follower and its applications – Negative feedback-Transistor as a switch, Multistage Amplifiers, Feedback, Oscillators, Voltage regulation, Power amplifiers.
  • Introduction to Network Theorems: Kirchoff’s laws, superposition, Thevenin’s Norton’s and Maximum power theorems.
  • Voltage and Current relationship In the resistance, inductance, and capacitance. Concept of reactance, susceptance, conductance, impedance, and admittance In series and parallel RL, RC, and RLC circuits – Three phases supply-star and delta connection diagrams – Relation between line and phase & voltages and currents, series and parallel resonance circuits – the condition of resonance, resonant frequency, Q factor, and bandwidth.
  • Digital electronics: – Logic gates, Demorgan’s theorem, Boolean algebra, frequency counters, flip­ flops, shift resistors, Basic concepts of Digital to Analog and Analog to Digital Converters.
  • Modulation, types of modulation, Amplitude Modulation (AM), Modulation index, Power relation In AM, Generation, and Demodulation of AM. Single Side Band (SSB): Power requirement in comparison with AM, Advantages of SSB over AM. Concept of Balanced Modulator, Generation of SSB, Pilot Carrier System. Independent Side System, Vestigial Sideband Transmission.
  • Frequency Modulation (FM): Definition of FM, Bandwidth, Noise triangle, Pre-emphasis, and De­ emphasis. Pulse Modulation (PM): Definition of PM. Difference between AM and FM. Radio receivers. Sampling Theorem, PAM, PTM, PWM, PPM, pulse code modulation, Quantization noise, commanding, PCM system, differential PCM, Delta modulation. Multiplexing: FDM/TDM. Introduction of digital Communication: PSK, ASK, FSK, introduction to fiber optics system, Propagation of light In optical fiber and satellite communications.

Scientist B (IN)

  • Characteristics and applications of the diode, Zener diode, BJT, and MOSFET; small signal analysis of transistor circuits, feedback amplifiers. Characteristics of operational amplifiers; applications of amplifier: difference amplifier, adder, subtracter, integrator, differentiator, instrumentation amplifier.
  • Combinational logic circuits, minimization of Boolean functions. Arithmetic circuits, comparators, Schmitt trigger, multi-vibrators, sequential circuits, flip­ flops, shift registers, timers, and counters; sample­ and-hold circuit, multiplexer, analog-to-digital (successive approximation, integrating, flash and sigma-delta) and digital-to-analog converters (weighted R, R-2R ladder and current steering logic).
  • SI  units,  systematic and random errors in measurement, expression of uncertainty – accuracy and precision index, propagation of errors. PMMC, MI, and dynamometer type instruments; dc potentiometer; bridges for measurement of R, L, and C, Q-meter. Measurement of voltage, current, and power in single and three-phase circuits; ac and dc current probes; true RMS meters, voltage and current scaling, instrument transformers, timer/counter, time, phase, and frequency measurements, digital voltmeter, digital multimeter; oscilloscope, shielding, and grounding.
  • Resistive-, capacitive-, inductive-, piezoelectric-, Hall effect sensors and associated signal conditioning circuits; transducers for industrial instrumentation: displacement (linear and angular), velocity, acceleration, force, torque, vibration, shock, pressure (including low pressure), flow (differential pressure, variable area, electromagnetic, ultrasonic, turbine, and open channel flow meters) temperature (thermocouple, bolometer, RTD (3/4 wire), thermistor, pyrometer, and semiconductor); liquid level, pH, conductivity and viscosity measurement.

CPCB Scientist B Exam Pattern 2023



Total No. of Questions

Total Marks

Time duration

General Science, General English, and General Aptitude



2 Hours

Subject-specific questions






FAQs about CPCB Scientist B

Q: What is CPCB Scientist B?

A: CPCB Scientist B is a position offered by the Central Pollution Control Board (CPCB) to eligible candidates who have completed their Master’s degree in Environmental Science, Chemistry, Biology, or any other relevant field. The job responsibilities of a CPCB Scientist B include monitoring and controlling pollution levels, conducting research on various environmental issues, and formulating policies to minimize environmental pollution.

Q: What is the selection process for CPCB Scientist B?

A: The selection process for CPCB Scientist B typically involves a written exam, followed by an interview. The written exam assesses the candidate’s knowledge of relevant subjects such as environmental science, chemistry, and biology. The interview is conducted to evaluate the candidate’s communication skills, problem-solving ability, and overall personality.

Q: What is the eligibility criteria for CPCB Scientist B?

A: To be eligible for CPCB Scientist B, a candidate must have a Master’s degree in Environmental Science, Chemistry, Biology, or any other relevant field. Additionally, the candidate must be between 18 and 35 years of age, and must have a valid score in the National Eligibility Test (NET) conducted by the University Grants Commission (UGC) or the Council of Scientific and Industrial Research (CSIR).

Q: What is the salary of a CPCB Scientist B?

A: The salary of a CPCB Scientist B varies depending on the location of the job and the level of experience of the candidate. Typically, the starting salary for a CPCB Scientist B is around Rs. 56,100 per month, and this can go up to Rs. 1,77,500 per month for experienced candidates.

Q: What are the job responsibilities of a CPCB Scientist B?

A: The job responsibilities of a CPCB Scientist B include monitoring and controlling pollution levels, conducting research on various environmental issues, and formulating policies to minimize environmental pollution. They also conduct field visits to assess the pollution levels in various areas, and provide recommendations to mitigate the effects of pollution.

Q: What are the career opportunities for CPCB Scientist B?

A: CPCB Scientist B is a highly respected and rewarding job, with numerous career opportunities available for those who wish to progress in their careers. Experienced CPCB Scientist Bs can advance to senior positions within the CPCB, or they can pursue opportunities in academia, research, or other related fields.

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