ESE Prelims Electrical

Engineering Services Examination (Preliminary) - Electrical Engineering

More study resources

About this exam

The Engineering Services Examination (Preliminary) in Electrical Engineering is a screening stage used by the Union Public Service Commission to shortlist engineering graduates for central government technical posts. It suits candidates with a B.E./B.Tech or equivalent in Electrical Engineering who want a career in public-sector engineering rather than private industry. The preliminary stage is objective and multiple choice, split into a general studies and engineering aptitude paper and a discipline paper, with negative marking for wrong answers. Electrical content spans network theory, machines, power systems, control, measurements, analog and digital electronics, power electronics, signals and systems, and electromagnetic field theory, so breadth matters as much as depth. Preparation usually means working through standard undergraduate texts topic by topic, then shifting to timed practice and error analysis. Because the preliminary stage rewards accuracy under penalty, many candidates spend the final weeks on revision and mock tests rather than new material. The commission publishes the notification, syllabus, current vacancy details, schedule, and fee on its official website; always confirm figures there before applying, as they change between cycles. This page is independent study material and is not affiliated with the commission.

What you'll study

Common questions

About ESE Prelims Electrical preparation

What is the format of the preliminary examination?

It is objective, multiple choice, with a General Studies and Engineering Aptitude paper and an Electrical Engineering discipline paper. Both are attempted on the same day in offline mode. Each paper carries its own time limit, and marks are deducted for incorrect answers, so blind guessing is costly. The commission's notification gives the exact structure for the current cycle.

How difficult is the preliminary stage?

The paper is broadly undergraduate level but fast and broad. Most candidates find the general studies paper harder to prepare for than the technical one, because its scope is wide and unpredictable. The technical paper rewards conceptual clarity over memorised formulas. Scoring well usually means high accuracy rather than attempting every question.

Can I retake the examination if I do not qualify?

Yes, candidates generally may appear in later cycles subject to the age and number-of-attempts rules in force. Those limits depend on category and are revised from time to time. Check the current notification on the commission's website for the rules that apply to you rather than relying on older information.

How should I order my preparation across subjects?

Start with network theory and machines, since they underpin power systems and drives. Then take control systems, measurements, and electronics together. Signals and systems and electromagnetic field theory are smaller but easy to neglect, so schedule them early enough to revise. Finish with power electronics and drives, which draws on several earlier topics.

How much time does the examination take?

Each paper has a fixed duration set by the commission and announced in the notification. The two papers are scheduled in separate sessions on the same day. Because negative marking applies, pace yourself to leave time for checking rather than rushing to attempt every question. Confirm the current timings on the official website.

What are the most common reasons candidates fall short?

Three recur: ignoring the general studies paper until too late, over-attempting under negative marking, and studying only numerical problems without understanding underlying concepts. Another is skipping small-weight subjects such as field theory or measurements. Reviewing mistakes from practice tests is usually more valuable than adding new books.

Is negative marking a serious risk?

It is, because a wrong answer costs marks that a blank answer does not. Treat elimination as the basis for attempting a question, not intuition. In practice, candidates who attempt fewer questions with high confidence often score better than those who attempt everything. Build this discipline during mock tests, not on exam day.

Where do I find dates, fees, and vacancy details?

The commission publishes the notification, syllabus, eligibility conditions, fee, schedule, and vacancy counts on its official website. These change every cycle, so this page deliberately does not state them. Read the current notification carefully before applying, and keep a copy of your application details.

Does qualifying here lead directly to a post?

No. The preliminary stage only screens candidates for the next stage, which typically includes a written main examination and an interview or personality test. Final selection depends on performance across all stages plus eligibility verification. Plan your preparation with the later stages in mind rather than stopping after the prelims.