SJVN JFE & FE common mistakes
SJVN JFE & FE · Understand the traps and how to avoid them.
Spending the first weeks reading broad engineering textbooks cover to cover instead of drilling the specific SJVN JFE/FE technical syllabus topics (basic electrical circuits, machines, power systems, measurement, thermodynamics, SOM, fluid mechanics, concrete and surveying basics).
The syllabus spans four disciplines, so candidates default to 'revise everything' and never reach practice-question depth on any single topic; the breadth feels productive but leaves recall untested.
What to do instead
Build a one-page topic checklist from the official syllabus, tag each item as strong/weak/unknown, and allocate 70% of technical study time to weak and unknown items using short topic tests (15-20 questions) rather than full re-reading.
Solving numericals only by reading the worked solution and agreeing with it, without re-deriving the formula or substituting values independently.
Recognition of a familiar solution feels like mastery, so candidates skip the retrieval step; in the exam hall, the multi-step substitution (units, per-unit conversion, sign conventions) breaks down.
What to do instead
After reading any worked example, close it and reproduce the full solution on blank paper within a time limit; keep an error log of every step where you deviated and revisit those entries weekly.
Ignoring unit systems and per-unit/phase conventions in electrical and mechanical numericals (kW vs MW, line vs phase voltage, gauge vs absolute pressure, N vs kN in stress problems).
Coaching material often mixes conventions, and candidates memorize final answers rather than tracking units through each step, so distractors built on unit slips look correct.
What to do instead
Adopt a fixed habit: write the given quantities with units, convert to SI at the start, and carry units through every line; in practice sets, deliberately check whether an answer option differs only by a factor of 3, √3, or 1000 and treat that as a warning sign.
Treating General Aptitude as a low-priority filler section and only attempting it in the last week with no timed practice.
Quantitative aptitude and reasoning reward speed built over repeated short drills; candidates assume school-level maths will 'come back' under pressure, but time-per-question in the exam is tight.
What to do instead
Schedule 30-45 minutes of aptitude daily from the start: alternate quant topics (percentages, ratio, time-work, speed-distance, averages, mensuration) with reasoning sets (series, coding-decoding, syllogisms, seating, blood relations), always timed, and track accuracy plus seconds per question.
Attempting reasoning puzzles and long data-interpretation sets in strict question order and burning 6-8 minutes on one item.
Candidates treat every question as equally valuable and dislike leaving blanks, so a single seating-arrangement puzzle consumes time that three easier questions would have used.
What to do instead
Adopt a two-pass strategy in mocks: first pass takes only questions solvable in under 60-90 seconds, second pass returns to puzzles; practise a hard stop of 90 seconds per question with a skip rule you follow without negotiation.
Preparing General Awareness by reading monthly current-affairs magazines end to end instead of targeting the exam's actual awareness mix (Indian polity and Constitution, static geography, basic economics, science, and power/energy sector developments).
Current-affairs compilations are voluminous and feel comprehensive, but a large share of awareness questions is static and sector-linked, so magazine reading yields low marks per hour.
What to do instead
Split awareness prep: 60% static (polity articles and schedules, national parks and rivers, currencies and capitals, basic science facts), 20% power-sector and renewable-energy news, 20% general current affairs; revise static notes via spaced repetition rather than fresh reading.
In the English section, answering grammar and vocabulary questions by 'what sounds right' rather than applying the rule being tested (subject-verb agreement, articles, prepositions, tense sequence, active/passive, direct/indirect speech).
Everyday spoken English tolerates errors that formal written questions penalize, and candidates rarely revisit the underlying rule after a wrong answer.
What to do instead
Maintain a rule-wise error notebook: for each wrong question, name the rule violated and write one self-made sentence using it correctly; drill one rule family at a time (e.g., 25 subject-verb agreement items) before moving on.
Reading comprehension answers chosen from memory of the passage's general topic or from personal knowledge, instead of locating the exact line that supports the option.
Under time pressure, candidates skim the passage once and pick the option that 'feels' consistent, missing options that are true in general but not stated in the passage.
What to do instead
For every RC question, point to the specific sentence or phrase that justifies the chosen option and reject options that add information not in the text; practise with a pencil-underlining pass and time-box passages at roughly 1.5 minutes per question.
Taking full-length mocks without reproducing exam conditions (untimed, with notes open, pausing between sections) and then not analysing the paper afterwards.
Untimed practice hides the real constraint, which is decision-making under a clock; and without post-mock analysis, the same topic-level errors repeat in every attempt.
What to do instead
Run at least one full mock per week under strict conditions (single sitting, no notes, one answer sheet, fixed sectional time), then spend equal time on analysis: classify every wrong and guessed answer as concept gap, calculation slip, misread, or time pressure, and assign a fix to each category.
Leaving a technical topic entirely unattempted because it belongs to another discipline (e.g., a mechanical candidate skipping basic electronics or civil candidates skipping electrical fundamentals), assuming it will not be asked.
The paper covers a combined technical syllabus, and candidates over-optimize on their own branch, so easy one-line factual questions from other disciplines become avoidable losses.
What to do instead
Identify the 10-15 highest-yield elementary concepts in each non-own discipline (e.g., Ohm's law and transformer basics, stress-strain and beam types, cement and concrete grades, diode and transistor basics) and secure them with short factual revision rather than deep study.