RRB JE Junior Engineer

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The scored paper in the app is marked as MCQ. A correct answer is worth 1. A wrong answer costs -0.3333.

CBT-1 mock sections stay Quant/Reasoning/GA/Computer. rrb_je_tech is the CBT-2 Technical Abilities catalog and is not a CBT-1 mock section.

Computer Knowledge

Basics, Windows/Office, Internet & E-mail, Networking & Cyber Security

• Keyboard ShortcutsFrequently asked keyboard shortcut keys across Windows and MS Office applications.
• Computer FundamentalsDefinition, working principle, types and generations of computers.
• Hardware & I/O DevicesInput, output and processing hardware including CPU components like ALU and control unit.
• Software & Operating SystemsSystem and application software and functions of operating systems like Windows and Linux.
• Memory & StoragePrimary and secondary memory, RAM, ROM, cache and storage units.
• Networking & InternetNetwork types, devices, protocols, ports and IP — the networking half of SSC's networking & cyber security module (internet/e-mail is the next topic).
• Internet & E-mailWeb browsing and searching, download/upload, managing e-mail accounts, Reply/Forward, mail protocols and e-Banking — SSC CGL Tier-2 Computer module.
• MS Office ApplicationsMS Word, Excel and PowerPoint features, toolbars, formulas and file operations.
• Cyber Security & Digital AwarenessComputer viruses, malware, firewalls and modern topics like cloud computing and digital payments.
• Abbreviations & HistoryCommon computer acronyms, full forms and key inventors in computing history.

General Awareness

Indian Polity, History, Geography, Economy, General Science, Environment & Current Affairs

• Indian Polity & ConstitutionConstitution, fundamental rights, Parliament, judiciary, amendments and governance structures.
• Indian HistoryAncient, medieval and modern Indian history with emphasis on the freedom struggle.
• GeographyIndian and world physical geography including rivers, climate, soil and important places.
• General SciencePhysics, chemistry and biology concepts at around tenth-standard level.
• EconomicsBasic macroeconomics, Indian economy, banking, budget and economic reforms.
• Current AffairsNational and international events of the last several months including schemes, sports and awards.
• Static GKUnchanging general knowledge on dances, dams, first-in-India, superlatives and miscellaneous facts.
• Art & CultureIndian classical dances, music, paintings, festivals and cultural heritage.
• Awards & HonoursNational and international awards, their fields and recent recipients.
• SportsSports events, tournaments, cups, terminologies and recent winners.
• Books & AuthorsFamous books and their authors, both classical and recently released titles.
• Important Days & ThemesNational and international days, their dates and yearly observance themes.
• Government SchemesCentral and state government schemes, their objectives and associated ministries.
• National & International OrganizationsUN bodies and other important world and Indian organizations with their headquarters and heads.
• Environment & Pollution ControlEcosystems, biodiversity, air/water/soil/noise pollution, waste, EIA, and the Indian Acts and boards that control pollution — the RRB JE CBT-2 environment block, also asked in…

Quantitative Aptitude

Algebra, Geometry, Trigonometry, Mensuration, Number System, Percentages & Arithmetic

• Number System & SimplificationProperties of whole numbers, integers, fractions and decimals along with BODMAS-based simplification.
• PercentageConversion between fractions and percentages and their application in real-life expenditure, population and change problems.
• Ratio & ProportionComparison of quantities using ratios, proportions, variation and problems on ages and coins.
• Time, Work, Speed & DistanceWork efficiency problems combined with time, speed and distance including relative speed concepts.
• Averages, Simple & Compound InterestCalculation of arithmetic averages and growth of money through simple and compound interest.
• AlgebraAlgebraic identities, linear and quadratic equations, surds, indices and graphs of linear equations.
• GeometryProperties of lines, angles, triangles, circles, quadrilaterals and polygons including centres and similarity.
• TrigonometryTrigonometric ratios, identities, complementary angles and applications in heights and distances.
• Mensuration (2D & 3D)Area and perimeter of 2D figures and volume and surface area of 3D solids like prism, cone, cylinder and sphere.
• Data InterpretationAnalysis of data presented in tables, bar graphs, line graphs, pie charts, histograms and caselets.
• Profit, Loss & DiscountTrading calculations involving cost price, selling price, marked price, profit, loss and discount.
• Pipes & CisternsFilling and emptying of tanks by inlet and outlet pipes, an application of time and work.
• Mixture & AlligationFinding ratios and mean values when two or more ingredients of different values are mixed.
• PartnershipDistribution of profit among partners based on their capital invested and time period.
• Boats, Streams, Trains & RacesRelative speed problems involving boats in water, trains passing objects and races.
• LCM & HCFLeast common multiple and highest common factor of numbers and fractions with word problems.
• Surds & IndicesLaws of exponents, simplification of surds and rationalisation of irrational expressions.
• Probability, Statistics & Permutation-CombinationBasic probability, measures of central tendency, dispersion and counting via permutation and combination.

General Intelligence & Reasoning

Coding-Decoding, Analogies, Series, Syllogisms, Blood Relations & Non-Verbal

• Coding-DecodingEncoding and decoding of words and numbers using letter shifts, patterns and symbolic operations.
• Analogy & ClassificationIdentifying relationships and odd-one-out among semantic, symbolic, number and figural elements.
• Series (Number, Alphabet & Figural)Finding the missing or next term in number, alphabet, alphanumeric and figural series.
• Blood Relations & Direction SenseFamily relationship puzzles and direction-distance tracking using position and turns.
• SyllogismDrawing valid conclusions from given statements using Venn-diagram-based logical deduction.
• Non-Verbal ReasoningFigure-based reasoning covering figural series, analogy, classification and pattern completion.
• Seating Arrangement & PuzzlesArranging people or items in linear, circular and complex seating and ordering puzzles.
• Clocks & CalendarsAngle and time problems on clocks and finding days using odd-days and leap-year concepts.
• Venn DiagramsRepresenting relationships between groups and solving set-based logical questions using diagrams.
• Mathematical OperationsSolving equations after interchanging mathematical signs and numbers based on given rules.
• Order & RankingDetermining positions of people or objects from left, right, top or bottom in an arrangement.
• Logical Puzzles & ArrangementsComplex puzzles including scheduling, floor, box and category-based arrangement problems.
• Statement & Conclusion / AssumptionEvaluating whether conclusions, assumptions or inferences logically follow from given statements.
• Mirror & Water ImagesIdentifying the reflection of figures, letters and numbers in mirror and water surfaces.
• Paper Folding & CuttingPredicting the appearance of paper after folding, punching and unfolding, a spatial reasoning skill.
• Cubes & DiceProblems on dice faces, opposite faces and counting painted or cut cubes.
• Coded InequalityRead a chain of P > Q ≥ R = S < T (or a coded-symbol key) and decide which conclusions definitely follow.
• Machine Input–OutputName the hidden rewriting rule on a token line (arrangement, circular or block shift, or number operation) from two consecutive machine steps, then predict a later step or the…
• Reasoning Data SufficiencyDecide whether statement (I), (II), either, both, or neither suffice to answer a reasoning question — ranking and direction stems, not quantitative DS.
• Embedded Figures & Figure CountingFind figure X embedded in an option with rotation not allowed; complete a missing-figure pattern; count triangles or squares in a line figure, including composites.
• Dictionary Order & Word BuildingArrange words as in a dictionary; form one meaningful English word from given letters; count letter-pairs in a word that have as many letters between them as in the alphabet.

Technical Abilities (CBT-2)

Civil, Mechanical, Electrical and Electronics engineering for RRB JE CBT-2

• Civil Engineering (CBT-2)Building materials, surveying, soil mechanics, RCC and steel, hydrology and environmental engineering, and quantity estimating at diploma depth for RRB JE CBT-2 Technical…
• Mechanical Engineering (CBT-2)Statics and moments, strength of materials, air-standard engines, pumps, production processes, and vapour-cycle bookkeeping at diploma depth for RRB JE CBT-2 Technical Abilities…
• Electrical Engineering (CBT-2)DC/AC circuits, electrical machines, power systems, instruments, utilization, and basic electronics at diploma depth for RRB JE CBT-2 Technical Abilities (Electrical).
• Electronics Engineering (CBT-2)Analog devices and op-amps, digital logic, communication, 8085, electronic measurements, and power electronics at diploma depth for RRB JE CBT-2 Technical Abilities (Electronics).