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RRB CMA Vacancy 2026: Apply Online, Selection Process

📅 Updated On 10 October 2026✨ Update By Jyoti Sharma🌐 Hindi & English

RRB CMA Free Mock Test

Crack the RRB CMA Mock Test 2026 with the help of an online Test series or a free mock test. Every sample paper in the RRB CMA Exam has a designated weight, so do not miss out on any paper. Prepare for the RRB CMA mock test and check your test scores.

RRB Chemical & Metallurgical Assistant Syllabus 2026, Exam Pattern

RRB Chemical & Metallurgical Assistant Syllabus 2026, Exam Pattern, Exam Date 2026

Detail Information about RRB (Railway Recruitment Board) has published notification 2026 for the recruitment of Chemical & Metallurgical Assistant (CMA) vacancies. Those Candidates who are Interested to the following vacancy and completed all Eligibility Criteria can read the Notification & Apply Online. In this page we provide the Complete Syllabus of this Recruitment with Latest Update Exam Pattern and the Exam Date also.
 
RRB Syllabus 2026 - Overview
 
Conducting Authority Railway Recruitment Boards (RRB)
Name of the Post Chemical & Metallurgical Assistant (CMA)
Vacancies 35
Category
Syllabus and Exam Pattern
Official website Rrbcdg.gov.in
 
RRB Chemical & Metallurgical Assistant Syllabus 2026
 
RRB JE CBT 1 Syllabus :-

Mathematics :


1. Number systems
2. BODMAS
3. Decimals
4. Fractions
5. LCM and HCF
6. Ratio and Proportion
7. Percentages
8. Mensuration
9. Time and Work
10. Time and Distance
11. Simple and Compound Interest
12. Profit and Loss
13. Algebra
14. Geometry
15. Trigonometry
16. Elementary Statistics
17. Square Root, Age Calculations
18. Calendar & Clock
19. Pipes & Cistern.

General Intelligence & Reasoning :

1. Analogies
2. Alphabetical and Number Series
3. Coding and Decoding
4. Mathematical operations
5. Relationships
6. Syllogism
7. Jumbling
8. Venn Diagram
9. Data Interpretation and Sufficiency
10. Conclusions and Decision Making
11. Similarities and Differences
12. Analytical reasoning
13. Classification
14. Directions
15. Statement – Arguments and Assumptions etc.

General Awareness :

1. Knowledge of Current affairs
2. Indian geography
3. culture and history of India including freedom struggle
4. Indian Polity and constitution
5. Indian Economy
6. Environmental issues concerning India and the World
7. Sports
8. General scientific and technological developments etc.

General Science :

1. Physics, Chemistry and Life Sciences (Up to 10th Standard CBSE Syllabus)

RRB JE CBT 2 Syllabus :-

General Awareness:
 
1. Knowledge of Current affairs
2. Indian geography
3. culture and history of India including freedom struggle
4. Indian Polity and Constitution
5. Indian Economy
6. Environmental issues concerning India and the World
7. Sports
8. General Scientific and Technological Developments
 
Basics of Computers and Applications :
 
1. Architecture of Computers
2. input and Output devices
3. Storage devices
4. Networking
5. Operating System like Windows
6. Unix
7. Linux
8. MS Office
9. Various data representation
10. Internet and Email
11. Websites & Web Browsers
12. Computer Virus
 
Basics of Environment and Pollution Control :
 
1. Basics of Environment
2. The adverse effect of environmental pollution and control strategies
3. Air
4. water and Noise pollution
5. their effect and control
6. Waste Management
7. Global warming
8. Acid rain
9. Ozone depletion
 
Physics :
 
1. Introduction to Physics
2. The Universe: Stars, Sun, Asteroids: In a nutshell
3. The Solar System and Satellites
4. Resistance of a Conductor
5. Refraction of Light
6. Reflection of light from Spherical Mirrors
7. Reflection of Light
8. Refraction of light by Spherical Lenses
9. Refraction of light through a glass prism
10. The Human Eye and its defects
11. Thermal Expansion of Solids, Liquids and Gases
12. Mechanical Properties of Fluids
13. Sound: Doppler Effect and Echo
14. Magnetic effects of Electric Current
15. Waves
16. The Kinetic Theory of Matter
17. The Four Fundamental Forces
18. Special and General Theories of Relativity
19. Radioactivity
20. Nuclear Fission and Fusion
 
Chemistry :
 
1. Atoms, Molecules and Chemical Arithmetic
2. Atomic Structure
3. Radioactivity and Nuclear Chemistry
4. The Periodic Table and Chemical Families
5. Chemical Bonding and Molecular Structure
6. Coordination Compounds
7. Solid State
8. Liquid State
9. Gaseous State
 
Technical Abilities Mechanical :
 
Chemical and Metallurgical Assistant (CMA)
 
1. Physics & Measurement :

1. Measurements, Units and Dimensions, Types of errors in measurements, Significance of accuracy in measurement.

Light: Basic principles of light - reflection, refraction, laws of reflection, total internal reflection, interference, diffraction and polarization. Formula for magnification of microscope, telescope. Electro Magnetic spectra.

Heat: Heat as energy- sources of heat, Transmission of heat, Expansion of solids, liquids and gases. Temperature (based on thermal equilibrium), Different Scales of Temperature. Calorimetry, Applications of Specific heat, Latent heat. Anomalous expansion of water and its significance in nature. Combustion, Calorific value, specific heat of gases.

Sound: Sources of sound. Propagation of sound. Velocity of sound in different media / substances. Characteristics of sound. Reflection of sound, echo, Resonance, Sonar and Doppler effect.

Mechanics: Scalars and Vectors. All types of motion. Friction. Newton’s laws of motion. Momentum. Equations of motion (under gravity and freely falling), projectile. Range. Laws of Floatation. Work, Power and Energy. Conservation of energy. Center of mass. Centre of gravity. Stability and Equilibrium. Universal law of Gravitation. Relation between ‘g’ and ‘G’. Circular motion, Kepler’s Laws. Elasticity and Hooke’s Law.

2. Electricity, Magnetism & Electronics :-

Magnetism: Magnetic field, Uniform and non-uniform magnetic fields. Magnetic induction. Magnetic lines of force. Magnetic pole strength, Magnetic moment. Inverse square law of magnetism. Magnetic properties of materials and their classification.

Electricity & Electro Magnetism: Electric charge, field, electric intensity, electric potential, potential difference. Simple Electric Circuits. Conductors, Nonconductors / Insulators, Coulomb’s inverse square law. Primary and secondary Cells. Ohm’s Law - its limitations. Resistances in series and parallel, Emf of a circuit; Specific resistance. Kirchhoff’s laws. Relation between electric potential and Electric energy, electric Power (wattage). Heating effect of electric current, and Joule’s law. Ampere’s law, circular loop and Solenoid. Magnetic force on moving charged particle and long straight conductors. Fleming’s left-hand rule, Electric motor. Electromagnetic induction – Faraday’s law Electromagnetic flux. Lentz law, Generators and Alternating Currents. Inductance – self, mutual inductance and principles of transformer.

Modern Physics: Discharge of Electricity through gases, Cathode rays, Anode rays and their properties; X-rays; Atomic models: JJ Thomson, Rutherford and Bohr’s models. Atomic nucleus and its structure. Atomic models: Mass defect; Radio ActivityDiscovery, properties of alpha, beta, and gamma radiations. Applications of alpha, beta, and gamma radiations, alpha, beta decays, Half-life period, Isotopes, Isobars, and Isotones. Artificial radioactivity; radio isotopes and their uses in different fields; radioactive series; Chain and controlled nuclear reactions; Fission and fusion of nuclei - atomic bomb and hydrogen bomb.

Electronics and Communications: Semi-conductors, diode, p-n junction characteristics. Transistor – pnp & npn characteristics and uses. Zener Diode characteristics. Simple electronic circuits, Logic gates – applications, modulation and demodulation.

3. Physical & Inorganic Chemistry :

Matter: States of matter. Elements, Compounds and Mixtures. Methods of separation of mixtures. Chromatography. Behavior of gases; measurable properties of gases; gas laws. Mole concept. Dalton, Avogadro, Berzelius laws.

Chemical Reactions: Physical and chemical changes. Types of Chemical reactions; Physical and Chemical properties of various compounds. Chemical calculations. NaOH, Bleaching powder, baking soda, washing soda, and their uses, Plaster of Paris.

Acids and Bases, Salts: Strength and uses of Acids & Bases. Neutralization. Nature and uses of different Salts. Water of crystallization. Complex, Neutral and double salts. Oxidation and Reduction, Rancidity. Identification of Acids, Bases– Indicators: Natural, Chemical. PH Scale - Role of PH in daily life-agriculture, medicine. Classification of salts based on affinity to water Examples of Acidic, Basic, Mixed, Complex, Neutral and double salts. Solutions - Types of solutions; solubility, ionization, Concentration; Oxidation number concept. Balancing of Redox reactions, Calculation of Concentrations. Stoichiometry.

Atomic Structure: Electromagnetic spectrum, Atomic spectrum, Characteristics of electron, proton and neutron, Rutherford’s model of an atom, nature of electromagnetic radiation, Plank’s quantum mechanics, explanation of photo electric effect, features of atomic spectra, characteristics of hydrogen spectrum, Bohr’s theory of structure of atom, Bohr’s explanation of spectral lines, failure of Bohr’s theory, wave particle nature of electrons, de Broglie’s hypothesis, Heisenberg’s uncertainty principle, important features of the Quantum mechanical model of an atom, Quantum numbers, concept of orbitals, define an atomic orbital in terms of quantum numbers-shapes of s, p and d orbitals, n l x rule, Energies of electronic energy levels (n+l) rule state Auffbau principle, Pauli’s exclusive principle and Hund’s rule of maximum multiplicity, electronic configuration of atom, explanation of stability of half filled and completely filled orbital.

Periodic Classification of Elements: Characteristics of elements in groups and periods. Signification of atomic number and electronic configuration as the basis per periodic classification. Classification of elements into s-block, p-block, d-block, f-block and their main characteristics. Periodic trends in physical and chemical properties of elements. Study of different Groups of periodic table.

Chemical Bonding: Ionic and Covalent bonds: Introduction of chemical bonding. Electronic Configuration of Noble gases. sigma, pi bond with examples. Shapes of molecules bond lengths and bond angles in molecules. Hybridization and explanation of H2O, BF3, CH4, NH3 etc. molecules. Hydrogen bonding and types of H bonds.

4. Organic Chemistry, Environmental Science & Metallurgy :

Carbon and its Compounds: Need to study of carbon compounds separately. Classification of Organic compounds Hydro carbons - Alkanes, alkenes, alkynes aromatic and aliphatic compounds with examples. Bonding in Carbon includingHybridization. Allotropes of Carbon. Versatile nature of carbon. Tetravalency, Chains, branches and rings. Catenation, Isomerism. Saturated and Unsaturated carbon compounds. Bonding of carbon with other elements. Functional groups in carbon compounds. Homologous series. Chemical properties of carbon compounds Combustion and Oxidation. Addition reactions. Substitution reaction. Important carbon compounds. Nomenclature organic compounds. Carbohydrates and their classification. Proteins-examples, Oils and fats examples Polythene - Nylon, PVC, Polyvinyl alcohol; Rubber – uses in daily life. Polymers, and other important organic compounds.

Environmental Chemistry: Different types of pollutions, acid rains, Ozone and its reactions, effects of depletion of ozone layer, Greenhouse effect and global warming, Green Chemistry as an alternative tool for reducing pollution.

Metallurgy: Occurrence of Metals. Minerals, Ores - Examples. Extractions of metals – activity series and related metallurgy, flow chart of steps involved in the extraction of metals from ore. Refining metals, Electrolytic refining, Corrosion – Prevention of Corrosion. Alloys and their uses.

 
RRB Chemical & Metallurgical Assistant Exam Pattern 2026
 
CBT 1

Duration : 90 Minutes

Negative Mark : 0.33

 
S.No. Subject No. of Question Marks
1. General Intelligence & Reasoning 25 25
2. General Awareness 15 15
3. Mathematics 30 30
4 General Science 30 30
  Total 100 100

CBT 2 Exam Pattern
 
Duration : 120 Minutes
 
Negative Mark : 0.33
 
S.No.
Subject No. of Question Marks
1. General Awareness 15 15
2. Physics & Chemistry 15 15
3. Basics of Computer Application 10 10
4. Basics of Enviroment and Pollution Control 10 10
5. Technical Abilities (Chemical & Metallurgical Assistant) 100 100
  Total 150 150

Exam Date 2026 : Notified Soon
 
Starting Date of Application Form : 14th August 2026
 
Last Date of Application Form : 13th September 2026

Total Post : 35

RRB Chemical & Metallurgical Assistant Exam Free Online Test Series

Crack RRB Chemical & Metallurgical Assistant Mock Test for exam 2026 with the help of Online Test Series or Free Mock Test. Every Question Paper in RRB CMA Exam has a designated weightage so do not miss out any Paper. Practice for RRB JE CMA Mock Test and check your test scores.

1
RRB Chemical & Metallurgical Assistant Exam CBT 1 - Hindi100 questions • 90 mins • 100 marks
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RRB Chemical & Metallurgical Assistant Exam CBT 1 - English100 questions • 90 mins • 100 marks
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RRB Chemical & Metallurgical Assistant Exam CBT 2 - Hindi150 questions • 120 mins • 150 marks
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RRB Chemical & Metallurgical Assistant Exam CBT 2 - English150 questions • 120 mins • 150 marks
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FAQs

RRB Chemical & Metallurgical Assistant 2026 Free Mock Test Frequently Asked Questions (FAQ's)

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