Special Class Railway Apprentice (SCRA) Exams Notification Under UPSC


      Special Class Railway Apprentice Examination is organized by Union Public Service Commission for the Mechanical Department Post in Railways. The candidates selected in the exam are given four years training in Bachelor’s of Engineering in Mechanical Department in BIT, Mesra Ranchi. After the completion of the course, the candidate can join Indian Railway Services of Mechanical Engineers Officers in Indian Railways.

Eligibility Criteria:

     Candidate must be either the

  • Citizen of India
  • Citizen of Nepal
  • Citizen of Bhutan

Read Carefully Before Apply:

  • Migrated to different countries with the intention of returning to India
  • The candidate must have an age limit between 19 to 25 years. The age relaxation for the following candidates are,
  • Scheduled Caste/Scheduled Tribe: Maximum of 5 years
  • Other Backward Caste: Maximum of 3 years
  • Candidate must possess an intermediate Higher Secondary Education
  • Candidate who have passed first year in Bachelor of Mathematics, Physics and Chemistry can also apply
  • Candidate who have passed first or second division Pre degree examination under any recognized University/Institution
  • Candidate who have passed first year in Five year Engineering Course under any recognized University/Institution

Selection Procedure:

   The stages of Selection are

  • Written Examination
  • Personal Interview


    The syllabus for the written Examination is

 General Knowledge

  • Man and His Environment
  • History, Politics and Society in India
  • Constitution of India and its Characteristic Features
  • Broad Features of Indian social system
  • Social Disorganization in India
  • Money

Psychological Test

       The questions are designed to assess your basic intelligence and mechanical aptitude.


        Length measurements using vernier, screw gauge, spherometer and optical lever. Measurement of time and mass. Straight line motion and relationships among displacement, velocity and acceleration. Newton’s Laws of Motion, Momentum, impulse, work, energy and power.

        Coefficient of friction. Equilibrium of bodies under action of forces. Moment of a force, couple. Newton’s Law of Gravitation. Escape velocity. Acceleration due to gravity. Mass and Weight; Centre of gravity, Uniform circular motion, centripetal force, Simple Harmonic motion. Simple pendulum. Pressure in a fluid and its variation with depth. Pascal’s Law. Principle of Archimedes.

       Floating bodies, Atmospheric pressure and its measurement. Temperature and its measurement. Thermal expansion, Gas laws and absolute temperature. Specific heat, latent heats and their measurement. Specific heat of gases. Mechanical equivalent of heat. Internal energy and First law of thermodynamics, Isothermal and adiabatic changes. Transmission of heat; thermal conductivity.

      Wave motion; Longitudinal and transverse waves. Progressive and stationary waves. Velocity of sound in gas and its dependence on various factors. Resonance phenomena (air columns and strings). Reflection and refraction of light. Image formation by curved mirrors and lenses, Microscopes and telescopes. Defects of vision.

      Prisms, deviation and dispersion, Minimum deviation. Visible spectrum. Field due to a bar magnet, Magnetic moment, Elements of Earth’s magnetic field. Magnetometers. Dia, para and ferromagnetism. Electric charge, electric field and potential, Coulomb’s Law.

     Electric current; electric cells, e.m.f. resistance, ammeters and voltmeters. Ohm’s law; resistances in series and parallel, specific resistance and conductivity. Heating effect of current. Wheatstone’s bridge, Potentiometer. Magnetic effect of current; straight wire, coil and solenoid electromagnet; electric bell.

     Force on a current-carrying conductor in magnetic field; moving coil galvanometers; conversion to ammeter or voltmeter. Chemical effects of current; Primary and storage cells and their functioning, Laws of electrolysis. Electromagnetic induction; Simple A.C. and D.C. generators. Transformers, Induction coil, Cathode rays, discovery of the electron, Bohr model of the atom. Diode and its use as a rectifier. Production, properties and uses of X-rays. Radioactivity; Alpha, Beta and Gamma rays. Nuclear energy; fission and fusion, conversion of mass into energy, chain reaction.


Physical Chemistry

  • Electro-Chemistry
  • Oxidation – Reduction; Modern, electronics concept and oxidation number.
  • Natural and Artificial Radioactivity

Inorganic Chemistry

  • Brief Treatment of Elements and their industrially important compounds
  • Hydrogen
  • Group I Elements
  • Group II Elements
  • Group III Elements
  • Group IV Elements
  • Group V Elements
  • Group VI Elements
  • Group VII Elements
  • Group O (Noble gases)
  • Metallurgical Processes

Organic Chemistry

  • Tetrahedral nature of carbon,
  • Hybridization and sigma pie bonds and their relative strength.
  • Single and multiple bonds. Shapes of molecules. Geometrical and optical isomerism.
  • General methods of preparation, properties and reaction of alkanes, alkenes and alkynes, Aromatic hydrocarbons: Halogen derivatives: Chloroform, Carbon Tetrachloride, Chlorobenzene, D.D.T. and Gammexane.
  • Hydroxy Compounds: Ethers; Diethyl ether.
  • Aldehydes and ketones: Formaldehyde, Acetaldehyde, Benzaldehyde, acetone, acetophenone.
  • Nitro compounds amines: Nitrobenzene TNT, Anlline, Diazonium Compounds, Azodyes.
  • Carboxylic acid: Formic, acetic, denezoic and salicylic acids, acetyl salicylic acid.
  • Esters: Ethylacerate, Methyl salicylates, ethylbenzoate.
  • Polymers: Polythene, Teflon, Perpex, Artificial Rubber, Nylon and Polyester fibers.
  • Nonstructural treatment of Carbohydrates, Fats and Lipids, amino acids and proteins – Vitamins and hormones.



  • Concept of a set, Union and Intersection of sets
  • Complex numbers
  • Quadratic equations with real co-efficients.
  • Quadratic expressions: extreme values.
  • Permutation and Combination
  • Binomial theoremand its applications.
  • Matrices and Determinants


  • Applications: Heights and Distance.
  • Analytic Geometry (Two Dimensions)
  • Differential Calculus
  • Integral Calculus and Differential equations
  • Vectors and its Applications
  • Magnitude and direction of a vector, equal vectors, unit vector, zero vector, vectors in two and three dimensions, position vector.
  • Statistics and Probability

Exam Pattern:

      The Written Exam consists of three papers of General Knowledge, Physical Science and Mathematics. They are objective type questions with 200 marks each with 2 hours time duration. There is negative marking for each wrong answer. The shortlisted candidates are eligible for personal Interview which carries 100 marks.

How to Apply

  • Log onto the official website upsconline.nic.in
  • Fill all the mandatory details in the application form
  • Review the application form
  • Upload the photo and signature of the candidate
  • Make payment via Internet Banking, Credit/Debit Cards
  • Agree to the declaration
  • Submit the application form
  • Take the printout for future reference


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