RRB Chemical & Metallurgical Assistant 2026 Free Mock Test Practice
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RRB Chemical & Metallurgical Assistant Syllabus 2026, Exam Pattern
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RRB CMA Combo Packages
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RRB CMA
Combo - 1 CBT 1 (Hindi)
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Combo - 2 CBT 1 (Hindi)
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Combo - 3 CBT 1 (Hindi)
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Combo - 4 CBT 1 (English)
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RRB CMA
Combo - 11 CBT 1 (Hindi)
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RRB CMA
Combo - 12 CBT 1 (English)
2. Question Bank - 4000 Questions with Answer.
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RRB CMA
Combo - 13 CBT 2 (Hindi)
2. Question Bank - 3000 Questions with Answer.
3. Printed Material 10 Mock Test Papers with OMR Sheet.
4. 1500 (+) Current Affairs MCQ with Answer PDF in Hindi.
5. 1000 (+) GK MCQ with Answer PDF Book in Hindi.

RRB CMA
Combo - 14 CBT 2 (English)
2. Question Bank - 3000 Questions with Answer.
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4. 1500 (+) Current Affairs MCQ with Answer PDF in English.
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RRB CMA
Combo - 15 CBT 1 (Hindi)
2. Question Bank - 4000 Questions with Answer.
3. Printed Material 10 Mock Test Papers with OMR Sheet.
4. EBook of RRB CMA (1000 MCQ) PDF Format in Hindi.
5. 1500 (+) Current Affairs MCQ with Answer PDF in Hindi.
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RRB CMA
Combo - 16 CBT 1 (English)
2. Question Bank - 4000 Questions with Answer.
3. Printed Material 10 Mock Test Papers with OMR Sheet.
4. EBook of RRB CMA (1000 MCQ) PDF Format in English.
5. 1500 (+) Current Affairs MCQ with Answer PDF in English.
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RRB CMA
Combo - 17 CBT 2 (Hindi)
2. Question Bank - 3000 Questions with Answer.
3. Printed Material 10 Mock Test Papers with OMR Sheet.
4. EBook of RRB CMA (1000 MCQ) PDF Format in Hindi.
5. 1500 (+) Current Affairs MCQ with Answer PDF in Hindi.
6. 1000 (+) GK MCQ with Answer PDF Book in Hindi.

RRB CMA
Combo - 18 CBT 2 (English)
2. Question Bank - 3000 Questions with Answer.
3. Printed Material 10 Mock Test Papers with OMR Sheet.
4. EBook of RRB CMA (1000 MCQ) PDF Format in English.
5. 1500 (+) Current Affairs MCQ with Answer PDF in English.
6. 1000 (+) GK MCQ with Answer PDF Book in English.

RRB CMA
Combo - 19 CBT 2 (English) (old)
2. Question Bank - 1000 Questions with Answer.
3. 1500 (+) Current Affairs MCQ with Answer PDF in English.
4. 1000 (+) GK MCQ with Answer PDF Book in English.

RRB CMA
Combo - 20 CBT 2 (Hindi) (old)
2. Question Bank - 1000 Questions with Answer.
3. 1500 (+) Current Affairs MCQ with Answer PDF in Hindi
4. 1000 (+) GK MCQ with Answer PDF Book in Hindi.

RRB CMA
Combo - 21 CBT 2 (English) (old)
2. Question Bank - 2000 Questions with Answer.
3. Printed Material 10 Mock Test Papers with OMR Sheet.
4. EBook of RRB CMA (1000 MCQ) in PDF Format in English.
5. 1500 (+) Current Affairs MCQ with Answer PDF in English.
6. 1000 (+) GK MCQ with Answer PDF Book in English.
RRB Chemical & Metallurgical Assistant Syllabus 2026, Exam Pattern
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RRB Chemical & Metallurgical Assistant Syllabus 2026, Exam Pattern, Exam Date 2026
| 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 |
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. 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.
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
|
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
Total Post : 35